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Journal articles on the topic 'Spez'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

PAVEENKITTIPORN, W., T. NOZAWA, S. DEJSIRILERT, I. NAKAGAWA, and S. HAMADA. "Prevalent emm types and superantigen gene patterns of group A Streptococcus in Thailand." Epidemiology and Infection 144, no. 4 (2015): 864–69. http://dx.doi.org/10.1017/s0950268815001880.

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SUMMARYGroup A Streptococcus (GAS) are globally distributed bacterial pathogens. We examined the emm genotypes, which are important indicators of virulence, of 349 clinical GAS isolates collected using two surveillance systems, i.e. Invasive Bacterial Infection Surveillance (IBIS) from 2010 to 2011 (234 isolates) and routine surveillance of clinically isolated bacteria from various hospitals during 1996–2011 (115 isolates) in Thailand. The major emm genotypes in IBIS samples were emm44 (12·0%), emm104 (6·8%), emm22 (5·6%), and emm81 (5·6%), whereas only one isolate (0·4%) had the emm1 genotype

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2

MA, Y., Y. YANG, M. HUANG, et al. "Characterization ofemmtypes and superantigens ofStreptococcus pyogenesisolates from children during two sampling periods." Epidemiology and Infection 137, no. 10 (2009): 1414–19. http://dx.doi.org/10.1017/s0950268809002118.

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SUMMARYThe characteristics of 359 group A streptococcal (GAS) isolates collected from Chinese paediatric patients in two periods (1993–1994, 2005–2006) were studied. Isolates were assigned toemmtypes and assayed for eight superantigen (SAg) genes (speA,speC,speH,speI,speG,speJ,ssa,SMEZ). Typesemm1 andemm12 were consistently the most prevalent during the two periods, while others varied in frequency. GAS isolates carrying six or more SAg genes increased from 46·53% (1993–1994) to 78·39% (2005–2006);ssa,speHandspeJgenes (P<0·05) increased butspeAdeclined (P<0·05). SAg gene profiles were cl

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Chatellier, Sonia, Nahla Ihendyane, Rita G. Kansal, et al. "Genetic Relatedness and Superantigen Expression in Group A Streptococcus Serotype M1 Isolates from Patients with Severe and Nonsevere Invasive Diseases." Infection and Immunity 68, no. 6 (2000): 3523–34. http://dx.doi.org/10.1128/iai.68.6.3523-3534.2000.

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ABSTRACT The relatedness of group A streptococcal (GAS) strains isolated from 35 Canadian patients with invasive disease of different severity was investigated by a variety of molecular methods. All patients were infected with M1T1 strains and, based on clinical criteria, were classified as severe (n = 21) and nonsevere (n = 14) invasive GAS infection cases. All the M1 strains studied had the emm1.0 allele and the same streptococcal pyrogenic exotoxin (Spe) genotype,speA+ speB+ speC speF+speG+ speH smeZ+ ssa. All isolates had the same speA allotype, speA2. The randomly amplified polymorphic DN

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4

Luca-Harari, Bogdan, Monica Straut, Silvia Cretoiu, et al. "Molecular characterization of invasive and non-invasive Streptococcus pyogenes isolates from Romania." Journal of Medical Microbiology 57, no. 11 (2008): 1354–63. http://dx.doi.org/10.1099/jmm.0.2008/001875-0.

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In 2002, the Romanian National Reference Laboratory was invited to join the Strep-EURO project to study invasive Streptococcus pyogenes infections. During 2003 and 2004, a total of 33 isolates recovered from invasive disease were received from eight Romanian counties. For comparison, 102 isolates from non-invasive disease, as well as a collection of 12 old invasive strains (isolated between 1967 and 1980) were included. All isolates were characterized by several methods: T and emm typing, presence of the fibronectin-binding protein F1 gene (prtF1), serum opacity factor (sof), and superantigen

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5

Chattopadhyay, Manas K., Celia White Tabor, and Herbert Tabor. "Polyamines Are Not Required for Aerobic Growth of Escherichia coli: Preparation of a Strain with Deletions in All of the Genes for Polyamine Biosynthesis." Journal of Bacteriology 191, no. 17 (2009): 5549–52. http://dx.doi.org/10.1128/jb.00381-09.

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ABSTRACT A strain of Escherichia coli was constructed in which all of the genes involved in polyamine biosynthesis—speA (arginine decarboxylase), speB (agmatine ureohydrolase), speC (ornithine decarboxylase), spe D (adenosylmethionine decarboxylase), speE (spermidine synthase), speF (inducible ornithine decarboxylase), cadA (lysine decarboxylase), and ldcC (lysine decarboxylase)—had been deleted. Despite the complete absence of all of the polyamines, the strain grew indefinitely in air in amine-free medium, albeit at a slightly (ca. 40 to 50%) reduced growth rate. Even though this strain grew

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6

Kazmi, Shahana U., Rita Kansal, Ramy K. Aziz, et al. "Reciprocal, Temporal Expression of SpeA and SpeB by Invasive M1T1 Group A Streptococcal Isolates In Vivo." Infection and Immunity 69, no. 8 (2001): 4988–95. http://dx.doi.org/10.1128/iai.69.8.4988-4995.2001.

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ABSTRACT The streptococcal pyrogenic exotoxins (Spes) play a central role in the pathogenesis of invasive group A streptococcal (GAS) infections. The majority of recent invasive GAS infections have been caused by an M1T1 strain that harbors the genes for several streptococcal superantigens, including speA, speB,speF, speG, and smeZ. However, considerable variation in the expression of Spe proteins among clonal M1 isolates has been found, and many of thespeA-positive M1 strains do not produce detectable amounts of SpeA in vitro. This study was designed to test the hypothesis that speA gene expr

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7

Angelow, Aniela, Katrin Christiane Reber, Carsten Oliver Schmidt, Sebastian Edgar Baumeister, and Jean-Francois Chenot. "Untersuchung der Prävalenz kardiologischer Risikofaktoren in der Allgemeinbevölkerung: Ein Vergleich ambulanter ärztlicher Abrechnungsdaten mit Daten einer populationsbasierten Studie." Das Gesundheitswesen 81, no. 10 (2018): 791–800. http://dx.doi.org/10.1055/a-0588-4736.

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Zusammenfassung Ziel der Studie Diese Studie untersucht die Validität ICD-kodierter Diagnosen für die kardiovaskulären Risikofaktoren arterielle Hypertonie, Diabetes mellitus, Dyslipidämie, Rauchen und Übergewicht aus kassenärztlichen Abrechnungsdaten in Bezug auf die Übereinstimmung mit klinischen Diagnosedaten einer populationsbasierten Kohortenstudie. Methodik Hierzu wurden Abrechnungsdaten der Kassenärztlichen Vereinigung Mecklenburg-Vorpommern (Zeitraum 2008–2012) mit Daten der Study of Health in Pomerania (SHIP) gelinkt. Die Übereinstimmung der Abrechnungsdiagnosen (I10.- (arterielle Hyp

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Helal, Zeinab M., Dina E. Rizk, Mohamed M. Adel El-Sokkary, and Ramadan Hassan. "Prevalence and Characterization of Streptococcus pyogenes Clinical Isolates from Different Hospitals and Clinics in Mansoura." International Journal of Microbiology 2020 (June 16, 2020): 1–11. http://dx.doi.org/10.1155/2020/5814945.

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Streptococcus pyogenes are associated with many bacterial diseases in both humans and animals and are capable of causing a multitude of human diseases. S. pyogenes isolates were identified by their bacitracin sensitivity, positive spy1258 detection, and positive GAS latex agglutination. Different isolates were typed serotypically and genotypically by BOX-PCR. Different virulence factors were identified in S. pyogenes isolates. In addition, antimicrobial resistance was tested to eleven different antibiotics. Furthermore, the resistance mechanisms were determined phenotypically by the disc diffu

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9

Domes, R. "Blattschäden an Fragaria vesca L. durch Phyllocoptes spez." Zeitschrift für Angewandte Entomologie 40, no. 4 (2009): 522–27. http://dx.doi.org/10.1111/j.1439-0418.1957.tb00878.x.

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10

Wang, Chih-Hung, Chia-Yu Lin, Yueh-Hsia Luo, et al. "Effects of Oligopeptide Permease in Group A Streptococcal Infection." Infection and Immunity 73, no. 5 (2005): 2881–90. http://dx.doi.org/10.1128/iai.73.5.2881-2890.2005.

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ABSTRACT The oligopeptide permease (Opp) of group A streptococci (GAS) is a membrane-associated protein and belongs to the ATP-binding cassette transporter family. It is encoded by a polycistronic operon containing oppA, oppB, oppC, oppD, and oppF. The biological function of these genes in GAS is poorly understood. In order to understand more about the effects of Opp on GAS virulence factors, an oppA isogenic mutant was constructed by using an integrative plasmid to disrupt the opp operon and confirmed by Southern blot hybridization. No transcript was detected in the oppA isogenic mutant by No

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11

Heim, Bernhard. "On the Spezialschar of Maass." International Journal of Mathematics and Mathematical Sciences 2010 (2010): 1–15. http://dx.doi.org/10.1155/2010/726549.

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Let be the space of Siegel modular forms of degree and even weight . In this paper firstly a certain subspace Spez the Spezialschar of , is introduced. In the setting of the Siegel threefold, it is proven that this Spezialschar is the Maass Spezialschar. Secondly, an embedding of into a direct sum Sym2is given. This leads to a basic characterization of the Spezialschar property. The results of this paper are directly related to the nonvanishing of certain special values of L-functions related to the Gross-Prasad conjecture. This is illustrated by a significant example in the paper.

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Rivera, Alba, Montserrat Rebollo, Elisenda Miró, et al. "Superantigen gene profile, emm type and antibiotic resistance genes among group A streptococcal isolates from Barcelona, Spain." Journal of Medical Microbiology 55, no. 8 (2006): 1115–23. http://dx.doi.org/10.1099/jmm.0.46481-0.

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Group A streptococcus (GAS) has been described as an emerging cause of severe invasive infections. A retrospective hospital-based study was conducted, including GAS isolates causing invasive or non-invasive infections from January 1999 to June 2003 in Barcelona. Demographic and clinical information on the invasive cases was obtained from medical files. GAS isolates collected from 27 patients with invasive infections and 99 patients with non-invasive infections were characterized by emm type and subtype, superantigen (SAg) gene profile (speA–C, speF–J, speL, speM, ssa and smeZ), allelic variant

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13

Smoot, Laura M., John K. McCormick, James C. Smoot, et al. "Characterization of Two Novel Pyrogenic Toxin Superantigens Made by an Acute Rheumatic Fever Clone of Streptococcus pyogenes Associated with Multiple Disease Outbreaks." Infection and Immunity 70, no. 12 (2002): 7095–104. http://dx.doi.org/10.1128/iai.70.12.7095-7104.2002.

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ABSTRACT The pathogenesis of acute rheumatic fever (ARF) is poorly understood. We identified two contiguous bacteriophage genes, designated speL and speM, encoding novel inferred superantigens in the genome sequence of an ARF strain of serotype M18 group A streptococcus (GAS). speL and speM were located at the same genomic site in 33 serotype M18 isolates, and no nucleotide sequence diversity was observed in the 33 strains analyzed. Furthermore, the genes were absent in 13 non-M18 strains tested. These data indicate a recent acquisition event by a distinct clone of serotype M18 GAS. speL and s

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Mathur, Purva, Nidhi Bhardwaj, Kushal Mathur, et al. "Clinical and molecular epidemiology of beta-hemolytic streptococcal infections in India." Journal of Infection in Developing Countries 8, no. 03 (2014): 297–303. http://dx.doi.org/10.3855/jidc.3216.

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Introduction: Beta-hemolytic streptococci (βHS) cause a diverse array of human infections. Despite the high number of cases of streptococcal carriers and diseases, studies discerning the molecular epidemiology of βHS in India are limited. This study reports the molecular and clinical epidemiology of beta-hemolytic streptococcal infections from two geographically distinct regions of India. Methodology: A total of 186 isolates of βHS from north and south India were included. The isolates were identified to species level and subjected to antimicrobial susceptibility testing. Polymerase chain reac

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15

Jing, Hong-bo, Boa-an Ning, Huai-jie Hao, et al. "Epidemiological analysis of group A streptococci recovered from patients in China." Journal of Medical Microbiology 55, no. 8 (2006): 1101–7. http://dx.doi.org/10.1099/jmm.0.46243-0.

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Since the mid-1980s, there has been a resurgence of severe forms of invasive group A streptococcal (GAS) disease in many countries and regions. However, there has not been any systemic epidemiologic analysis of GAS disease reported in mainland China. To analyse the molecular epidemiology of GAS disease, 86 strains from patients in different regions of mainland China were collected. The collection sites included blood, pus, wounds, the epipharynx and other sites. A total of 21 different emm types were identified in the isolates. In both invasive and non-invasive isolates, M1 (29.1 %) and M12 (2

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Patel, Chandra N., Brian W. Wortham, J. Louise Lines, Jacqueline D. Fetherston, Robert D. Perry, and Marcos A. Oliveira. "Polyamines Are Essential for the Formation of Plague Biofilm." Journal of Bacteriology 188, no. 7 (2006): 2355–63. http://dx.doi.org/10.1128/jb.188.7.2355-2363.2006.

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ABSTRACT We provide the first evidence for a link between polyamines and biofilm levels in Yersinia pestis, the causative agent of plague. Polyamine-deficient mutants of Y. pestis were generated with a single deletion in speA or speC and a double deletion mutant. The genes speA and speC code for the biosynthetic enzymes arginine decarboxylase and ornithine decarboxylase, respectively. The level of the polyamine putrescine compared to the parental speA + speC + strain (KIM6+) was depleted progressively, with the highest levels found in the Y. pestis ΔspeC mutant (55% reduction), followed by the

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Satishchandran, C., G. D. Markham, R. C. Moore, and S. M. Boyle. "Locations of the speA, speB, speC, and metK genes on the physical map of Escherichia coli." Journal of Bacteriology 172, no. 9 (1990): 4748. http://dx.doi.org/10.1128/jb.172.9.4748-.1990.

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Satishchandran, C., G. D. Markham, R. C. Moore, and S. M. Boyle. "Locations of the speA, speB, speC, and metK genes on the physical map of Escherichia coli.:." Journal of Bacteriology 172, no. 9 (1990): 4748. http://dx.doi.org/10.1128/jb.172.9.4748.1990.

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Tanaka, Reiko, Harukuni Tokuda, and Yoichiro Ezaki. "Cancer chemopreventive activity of “rosin” constituents of Pinus spez. and their derivatives in two-stage mouse skin carcinogenesis test." Phytomedicine 15, no. 11 (2008): 985–92. http://dx.doi.org/10.1016/j.phymed.2008.02.020.

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20

DE LAS RIVAS, BLANCA, RAMÓN GONZÁLEZ, JOSÉ MARÍA LANDETE, and ROSARIO MUÑOZ. "Characterization of a Second Ornithine Decarboxylase Isolated from Morganella morganii." Journal of Food Protection 71, no. 3 (2008): 657–61. http://dx.doi.org/10.4315/0362-028x-71.3.657.

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The genes involved in the putrescine formation by Morganella morganii were investigated because putrescine is an indicator of food process deterioration. We report here on the existence of a new gene for ornithine decarboxylase (ODC) in M. morganii. The sequenced 5,311-bp DNA region showed the presence of four complete and one partial open reading frame. Putative functions have been assigned to several gene products by sequence comparison with the proteins included in the databases. The third open reading frame (speC ) encoded a 722–amino acid protein showing 70.9% identity to the M. morganii

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Briko, S. I., E. V. Glushkova, D. A. Kleymenov, et al. "ANTIBIOTIC SUSCEPTIBILITY AND MOLECULAR PROPERTIES OF STRAIN STREPTOCOCCUS PYOGENES FROM PATIENTS WITH SOFT TISSUE INFECTIONS AND ANGINA." Journal of microbiology epidemiology immunobiology, no. 3 (June 28, 2017): 19–26. http://dx.doi.org/10.36233/0372-9311-2017-3-19-26.

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Aim. To compare the molecular properties and antibiotic susceptibility of GAS isolates in patients with respiratory and soft tissue infections. Materials and methods. 86 GAS isolates from patients with respiratory infections and 91 isolates with soft tissue infections were studied. The antimicrobial susceptibility profile of six antibiotics (clindamycin, erythromycin, azithromycin, clarithromycin, tetracycline, levofloxacin) was performed by the microdilution method. PCR and sequencing were used in emm-typing and detection SpeA, SpeB and SpeC genes. Results. Emm-types: 49, 66, 88 and 169 were

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Banks, David J., Benfang Lei, and James M. Musser. "Prophage Induction and Expression of Prophage-EncodedVirulence Factors in Group A Streptococcus Serotype M3 StrainMGAS315." Infection and Immunity 71, no. 12 (2003): 7079–86. http://dx.doi.org/10.1128/iai.71.12.7079-7086.2003.

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ABSTRACT The genome of the highly virulent group A Streptococcus (GAS) serotype M3 strain MGAS315 has six prophages that encode six proven or putative virulence factors. We examined prophage induction and expression of prophage-encoded virulence factors by this strain under in vitro conditions inferred to approximate in vivo conditions. Coculture of strain MGAS315 with Detroit 562 (D562) human epithelial pharyngeal cells induced the prophage encoding streptococcal pyrogenic exotoxin K (SpeK) and extracellular phospholipase A 2 (Sla) and the prophage encoding streptodornase (Sdn). Increased gen

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Kespohl, S., I. Warfolomeow, G. Schneider, S. Maryska, U. Meurer, and M. Raulf. "Mikrobielle Kontamination in wassergemischten Kühlschmierstoffen als Auslöser einer beruflich erworbenen exogen allergischen Alveolitis – ein Verdachtsfall führte zur Entwicklung von diagnostischen Tools für den Nachweis von spez." Allergologie 43, no. 01 (2020): 26–34. http://dx.doi.org/10.5414/alx02124.

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Karrasch, Matthias, Jürgen Rödel, Norman Mühler, et al. "Ovarian vein thrombosis (OVT) following invasive group A Streptococcus (iGAS) puerperal sepsis associated with expression of streptococcal pyrogenic exotoxin genes speC, speG and speJ." European Journal of Obstetrics & Gynecology and Reproductive Biology 184 (January 2015): 127–30. http://dx.doi.org/10.1016/j.ejogrb.2014.11.019.

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Hollis, A. S. "Rights of Way in Ovid (Heroides 20.146) and Plautus (Curculio 36)." Classical Quarterly 44, no. 2 (1994): 545–49. http://dx.doi.org/10.1017/s0009838800044049.

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Acontius rhetorically addresses the young man to whom Cydippe's parents have betrothed her, whom he imagines as showing excessive familiarity while visiting the girl's sickbed. In line 146, ‘spes’ may be considered the vulgate reading; the noun can be used concretely, of the object of one's hopes (OLD 4), a person in whom hopes are centred (OLD 5), or sometimes as an endearment (OLD 5c). For application to a girl with suitors, cf. Ovid, Met. 4.795 ‘multorumque fuit spes invidiosa procorum’. Or one could take ‘spes’ in Her. 20.146 generally, = id quod spero. But, in any case, ‘spes’ is somewhat

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Gutiérrez-Jiménez, Javier, Mónica Ivonne Mendoza-Orozco, Alejandra Vicente-Serrano, et al. "Virulence genes and resistance to antibiotics of beta-hemolytic streptococci isolated from children in Chiapas, Mexico." Journal of Infection in Developing Countries 12, no. 02 (2018): 80–88. http://dx.doi.org/10.3855/jidc.9679.

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Introduction: Among beta-hemolytic streptococci, Streptococcus pyogenes causes a wide variety of human disease including pharyngitis, necrotizing fasciitis and streptococcal toxic syndrome. Group A Streptococcus (GAS) uses a variety of virulence traits to colonize and then cause damage to the host; others species of beta-hemolytic streptococci are considered as emerging pathogens for humans. Despite its recognized virulence, only few studies have investigated virulence factors of GAS strains isolated in Mexico. Methodology: We conducted an epidemiological study to investigate the prevale

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Briko, N. I., E. V. Glushkova, E. P. Kakorina, and N. V. Nikitin. "STREPTOCOCCAL (GROUP A) INFECTION IN RUSSIA: STATE OF THE PROBLEM AND DEVELOPMENT TRENDS." Journal Infectology 11, no. 1 (2019): 7–16. http://dx.doi.org/10.22625/2072-6732-2019-11-1-7-16.

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Aim. To assess the current situation on streptococcal (group A) infection in Russia, to study the molecular properties and antimicrobial susceptibility of group A streptococcus isolated from patients with soft tissue infection.Materials and methods. We performed a descriptive epidemiological study using official statistics. A total of 97 cases of soft tissue infection caused by group A streptococci were investigated for emm-types, the presence of genes of bacteriophage toxins and integrases by PCR and sequencing. We tested 91 strains for antimicrobial susceptibility by the micro dilution metho

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Paillot, Romain, Alistair C. Darby, Carl Robinson, et al. "Identification of Three Novel Superantigen-Encoding Genes in Streptococcus equi subsp. zooepidemicus, szeF, szeN, and szeP." Infection and Immunity 78, no. 11 (2010): 4817–27. http://dx.doi.org/10.1128/iai.00751-10.

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ABSTRACT The acquisition of superantigen-encoding genes by Streptococcus pyogenes has been associated with increased morbidity and mortality in humans, and the gain of four superantigens by Streptococcus equi is linked to the evolution of this host-restricted pathogen from an ancestral strain of the opportunistic pathogen Streptococcus equi subsp. zooepidemicus. A recent study determined that the culture supernatants of several S. equi subsp. zooepidemicus strains possessed mitogenic activity but lacked known superantigen-encoding genes. Here, we report the identification and activities of thr

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Chan, Phillip B., John Etherington, and Roberto Aguilera. "Using the SPE/WPC/AAPG/SPEE/SEG PRMS To Evaluate Unconventional Resources." SPE Economics & Management 4, no. 02 (2012): 119–27. http://dx.doi.org/10.2118/134602-pa.

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Reglinski, Mark, Shiranee Sriskandan, and Claire E. Turner. "Identification of two new core chromosome-encoded superantigens in Streptococcus pyogenes; speQ and speR." Journal of Infection 78, no. 5 (2019): 358–63. http://dx.doi.org/10.1016/j.jinf.2019.02.005.

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Ikebe, Tadayoshi, Akihito Wada, Yoshishige Inagaki, et al. "Dissemination of the Phage-Associated Novel Superantigen Gene speL in Recent Invasive and Noninvasive Streptococcus pyogenes M3/T3 Isolates in Japan." Infection and Immunity 70, no. 6 (2002): 3227–33. http://dx.doi.org/10.1128/iai.70.6.3227-3233.2002.

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ABSTRACT In Japan, more than 10% of streptococcal toxic shock-like syndrome (TSLS) cases have been caused by Streptococcus pyogenes M3/T3 isolates since the first reported TSLS case in 1992. Most M3/T3 isolates from TSLS or severe invasive infection cases during 1992 to 2001 and those from noninvasive cases during this period are indistinguishable in pulsed-field gel electropherograms. The longest fragments of these recent isolates were 300 kb in size, whereas those of isolates recovered during or before 1973 were 260 kb in size. These 260- and 300-kb fragments hybridized to each other, sugges

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Chang, Chia-Wen, Wan-Hua Tsai, Woei-Jer Chuang, et al. "The fate of SPE B after internalization and its implication in SPEB-induced apoptosis." Journal of Biomedical Science 14, no. 3 (2007): 419–27. http://dx.doi.org/10.1007/s11373-007-9154-6.

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Lloyd, Charmaine, and Thangam Menon. "speA and speC toxin genes among group A streptococcus isolates from school children in Chennai, India." Journal of Medical Microbiology 56, no. 11 (2007): 1574–75. http://dx.doi.org/10.1099/jmm.0.47147-0.

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Khramtsov, Igor A., and Dmitry Yu Fedyanin. "Bright Single-Photon Emitting Diodes Based on the Silicon-Vacancy Center in AlN/Diamond Heterostructures." Nanomaterials 10, no. 2 (2020): 361. http://dx.doi.org/10.3390/nano10020361.

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Practical implementation of many quantum information and sensing technologies relies on the ability to efficiently generate and manipulate single-photon photons under ambient conditions. Color centers in diamond, such as the silicon-vacancy (SiV) center, have recently emerged as extremely attractive single-photon emitters for room temperature applications. However, diamond is a material at the interface between insulators and semiconductors. Therefore, it is extremely difficult to excite color centers electrically and consequently develop bright and efficient electrically driven single-photon

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Hui, Hongjie, Yajun Bai, Tai-Ping Fan, Xiaohui Zheng, and Yujie Cai. "Biosynthesis of Putrescine from L-arginine Using Engineered Escherichia coli Whole Cells." Catalysts 10, no. 9 (2020): 947. http://dx.doi.org/10.3390/catal10090947.

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Putrescine, a biogenic amine, is a highly valued compound in medicine, industry, and agriculture. In this study, we report a whole-cell biocatalytic method in Escherichia coli for the production of putrescine, using L-arginine as the substrate. L-arginine decarboxylase and agmatine ureohydrolase were co-expressed to produce putrescine from L-arginine. Ten plasmids with different copy numbers and ordering of genes were constructed to balance the expression of the two enzymes, and the best strain was pACYCDuet-speB-speA. The optimal concentration of L-arginine was determined to be 20 mM for this

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Vlaminckx, Bart J. M., Frank H. J. Schuren, Roy C. Montijn, et al. "Dynamics in Prophage Content of Invasive and Noninvasive M1 and M28 Streptococcus pyogenes Isolates in The Netherlands from 1959 to 1996." Infection and Immunity 75, no. 7 (2007): 3673–79. http://dx.doi.org/10.1128/iai.01695-06.

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ABSTRACT Invasive group A streptococcal (GAS) disease reemerged in The Netherlands in the late 1980s. To seek an explanation for this resurgence, the genetic compositions of 22 M1 and 19 M28 GAS strains isolated in The Netherlands between 1960s and the mid-1990s were analyzed by using a mixed-genome DNA microarray. During this four-decade period, M1 and especially M28 strains acquired prophages on at least eight occasions. All prophages carried a superantigen (speA2, speC, speK) or a streptodornase (sdaD2, sdn), both associated with invasive GAS disease. Invasive and noninvasive GAS strains di

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Cartwright, Jon. "High-spec mass spec." Physics World 32, no. 4 (2019): 34–37. http://dx.doi.org/10.1088/2058-7058/32/4/30.

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38

KOOLE, M., Y. DʼASSELER, K. VAN LAERE, et al. "MRI-SPET and SPET-SPET brain co-registration." Nuclear Medicine Communications 20, no. 7 (1999): 659–70. http://dx.doi.org/10.1097/00006231-199907000-00009.

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39

Pace, Roberto. "Introduzione alla conoscenza della sottofamiglia Aleocharinae nella Guyana Francese: Part V.(Coleoptera, Staphylinidae)." Beiträge zur Entomologie = Contributions to Entomology 65, no. 1 (2015): 131–56. http://dx.doi.org/10.21248/contrib.entomol.65.1.131-156.

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41 neue Arten der Tribus Lomechusini (Teil II, Schluß) werden beschrieben: Apalonia satanoides spec. nov., Apalonia alboterminalis spec. nov., Apalonia cayennensis spec. nov., Apalonia subcayennensis spec. nov., Apalonia guyfemoralis spec. nov., Apalonia (Apalonia) courciboensis spec. nov., Apalonia singularitheca spec. nov., Apalonia cayennicola spec. nov., Apalonia comtensis spec. nov., Apalonia ovapockensis spec. nov., Apalonia guyplatyceps spec. nov., Apalonia mima spec. nov., Apalonia antestricta spec. nov., Apalonia manaensis spec. nov., Apalonia athetoides spec. nov., Apalonia curvata s

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40

Pace, Roberto. "Introduzione alla conoscenza della sottofamiglia Aleocharinae della Guyana Francese: Parte IV (Coleoptera, Staphylinidae)." Beiträge zur Entomologie = Contributions to Entomology 65, no. 1 (2015): 85–99. http://dx.doi.org/10.21248/contrib.entomol.65.1.85-99.

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Neunzehn neue Arten der Tribus Lomechusini (Teil I) werden beschrieben: Orphnebius spinominutus spec. nov., Orphnebius guyanensis spec. nov., Orphnebius struyvei spec. nov., Orphnebius dentapicalis spec. nov., Orphnebius perinsolitus spec. nov., Orphnebius guysimplex spec. nov., Orphnebius diversipennis spec. nov., Orphnebius guylongipes spec. nov., Orphnebius carinapicalis spec. nov., Orphnebius curteparamericus spec. nov., Orphnebius microniger spec. nov., Tetradonia guyanensis spec. nov., Tetradonia anteopaca spec. nov., Tetradonella guyanorum spec. nov., Aychenonida guyanensis gen. nov.,

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41

Proft, Thomas, Phillip D. Webb, Vanessa Handley, and John D. Fraser. "Two Novel Superantigens Found in Both Group A and Group C Streptococcus." Infection and Immunity 71, no. 3 (2003): 1361–69. http://dx.doi.org/10.1128/iai.71.3.1361-1369.2003.

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ABSTRACT Two novel streptococcal superantigen genes (speLSe and speMSe ) were identified from the Streptococcus equi genome database at the Sanger Center. Genotyping of 8 S. equi isolates and 40 Streptococcus pyogenes isolates resulted in the detection of the orthologous genes speL and speM in a restricted number of S. pyogenes isolates (15 and 5%, respectively). Surprisingly, the novel superantigen genes could not be found in any of the analyzed S. equi isolates. The results suggest that both genes are located on a mobile element that enables gene transfer between individual isolates and betw

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42

Tanaka, Megumi, Tadao Hasegawa, Akira Okamoto, Keizo Torii, and Michio Ohta. "Effect of Antibiotics on Group A Streptococcus Exoprotein Production Analyzed by Two-Dimensional Gel Electrophoresis." Antimicrobial Agents and Chemotherapy 49, no. 1 (2005): 88–96. http://dx.doi.org/10.1128/aac.49.1.88-96.2005.

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ABSTRACT High-dose clindamycin (CLDM) and benzylpenicillin (PCG) are the recommended chemotherapeutic remedies for toxic shock-like syndrome caused by group A streptococci. One reason for this is that it has been shown that CLDM suppresses the expression of some exoproteins, e.g., SpeB, SpeA, and streptolysin O (Slo). We analyzed the effects of antibiotics on the production of whole exoproteins by two-dimensional gel electrophoresis. Unexpectedly, we found that the levels of several exoproteins, Slo, NAD+-glycohydrolase (Nga), M protein, and Sic, were increased by CLDM treatment, although we a

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43

Pace, Roberto. "New genera and new species of Aleocharinae from Australia (Coleoptera, Staphylinidae)." Beiträge zur Entomologie = Contributions to Entomology 65, no. 2 (2015): 327–39. http://dx.doi.org/10.21248/contrib.entomol.65.2.327-339.

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Die vorliegende Studie behandelt 18 Arten, die zu 6 Tribus gehören (Gyrophaenini, Homalotini, Bolitocharini, Athetini, Thamiaraeini, Aleocharini). Die für die Wissenschaft neuen Gattungen sind: Austraepiskia gen. nov. und Austracoenonica gen. nov., der Homalotini, und Tryphopsichara gen. nov. der Bolitocharini. Die 17 neuen Arten sind Brachida linsaymontis spec. nov., Sternotropa linsaymontis spec. nov., Sternotropa tambourinensis spec. nov., Sternotropa brisbanensis spec. nov., Austraepiskia barrinensis spec. nov., Austracoenonica laminaris spec. nov., Tryphopsichara australiana spec. nov., L

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44

Grimes, Tom. "SPEC." Iowa Review 24, no. 1 (1994): 3–74. http://dx.doi.org/10.17077/0021-065x.4675.

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45

Pace, Roberto. "Nuovi dati faunistici e tassonomici su Aleocharinae delle tribù Lomechusini, Hoplandriini, Oxypodini e Aleocharini del Sudamerica (Coleoptera, Staphylinidae)." Beiträge zur Entomologie = Contributions to Entomology 59, no. 1 (2009): 133–73. http://dx.doi.org/10.21248/contrib.entomol.59.1.133-173.

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Es werden taxonomische und faunistische Angaben von 132 Aleocharinen aus dem Zoologischen Museum der Humboldt Universität zu Berlin, aus dem Deutschen Entomologischen Institut in Müncheberg und aus der Sammlung Herbert Franz aus dem Naturhistorischen Museum in Wien dargestellt. Dabei können 50 Arten in 4 Tribus (Lomechusini, Hoplandriini, Oxypodini und Aleocharini) und 19 Gattungen (Orphnebius, Apalonia, Myrmecoxenia, Macrogerodonia, Zyras, Abrophaena, Meoticaops, Apimela, Feluva, Idiostiba, Diacanthochara, Acrocyusa, Neocalodera, Spanioda, Tinotus, Platandria, Hoplandria, Ctenopeuca und Aleoc

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46

GRALL, ELENA, and PETER JÄGER. "Forty-seven new species of Sinopoda from Asia with a considerable extension of the distribution range to the South and description of a new species group (Sparassidae: Heteropodinae)." Zootaxa 4797, no. 1 (2020): 1–101. http://dx.doi.org/10.11646/zootaxa.4797.1.1.

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Up to current knowledge, the spider genus Sinopoda Jäger, 1999 is distributed in South-, East- and Southeast-Asia. New material treated in this paper include new records from Brunei, India, Indonesia, Thailand and Vietnam. Forty-seven new Sinopoda species are described: S. aenyk spec. nov. (female; Laos), S. arboricola spec. nov. (male, female; Malaysia), S. assamensis spec. nov. (female; India), S. bifurca spec. nov. (male, female; China), S. bispina spec. nov. (male; Myanmar), S. caeca spec. nov. (female; Laos), S. chiangmaiensis spec. nov. (male, female; Thailand), S. cornuta spec. nov. (ma

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47

Assing, Volker, Volker Brachat, and Heinrich Meybohm. "Monograph of the Staphylinidae of Crete (Greece). Part II. Descriptions of new species (Insecta: Coleoptera)." Beiträge zur Entomologie = Contributions to Entomology 69, no. 2 (2019): 239–89. http://dx.doi.org/10.21248/contrib.entomol.69.2.239-289.

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One genus, Cretotyphlus Assing gen. nov., and 48 species of Staphylinidae from the Greek island Crete, 47 of them island endemics or even locally endemic, are described and illustrated: Amischa cretica Assing spec. nov., Atheta (Anopleta) digitalis Assing spec. nov., Hydrosmecta insularum Assing spec. nov. (Crete, Ikaria, Lesbos, Samothraki), Geostiba (Sipalotricha) inexsecta Assing spec. nov. (region to the east-southeast of Rethimno), Cousya candica Assing spec. nov. (East Crete: Dikti), Oxypoda (Bessopora) bimontium Assing spec. nov. (Dikti, Psiloritis), O. (Mycetodrepa) retunsa Assing spec

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48

Balasundaram, D., J. D. Dinman, C. W. Tabor, and H. Tabor. "SPE1 and SPE2: two essential genes in the biosynthesis of polyamines that modulate +1 ribosomal frameshifting in Saccharomyces cerevisiae." Journal of Bacteriology 176, no. 22 (1994): 7126–28. http://dx.doi.org/10.1128/jb.176.22.7126-7128.1994.

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49

Yu, C. E., and J. J. Ferretti. "Frequency of the erythrogenic toxin B and C genes (speB and speC) among clinical isolates of group A streptococci." Infection and Immunity 59, no. 1 (1991): 211–15. http://dx.doi.org/10.1128/iai.59.1.211-215.1991.

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50

Assing, Volker. "On some Lomechusini of the Palaearctic and Oriental regions (Coleoptera: Staphylinidae: Aleocharinae)." Beiträge zur Entomologie = Contributions to Entomology 66, no. 1 (2016): 13–111. http://dx.doi.org/10.21248/contrib.entomol.66.1.13-111.

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Typen und weiteres Material von zwölf Gattungen, davon eine neu, der Tribus Lomechusini aus der Paläarktis und der Orientalis werden revidiert. Insgesamt 70 Arten, davon 51 neu, werden beschrieben bzw. redeskribiert und/oder abgebildet: Orphnebius bakeri Bernhauer, 1929; O. breviceps Cameron, 1946; O. opticus Cameron, 1946; O. bicuspis spec. nov. (Laos; Indien: Arunachal Pradesh); O. biformis spec. nov. (Indonesien: Sumatra); O. cernens spec. nov. (Laos); O. dilatatus spec. nov. (Laos); O. effeminatus spec. nov. (Malaysia); O. extensus spec. nov. (Laos); O. fodens spec. nov. (Malaysia: Sabah);

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