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Academic literature on the topic 'Lipid transfer proteins'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 January 2023

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Journal articles on the topic "Lipid transfer proteins"

Fielding, Christopher J. "Lipid transfer proteins." Current Opinion in Lipidology 4, no. 3 (June 1993): 218–22. http://dx.doi.org/10.1097/00041433-199306000-00007.

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Ng, Tzi Bun, Randy Chi Fai Cheung, Jack Ho Wong, and Xiujuan Ye. "Lipid-transfer proteins." Biopolymers 98, no. 4 (2012): 268–79. http://dx.doi.org/10.1002/bip.22098.

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Rueckert, Dieter G., and Karlheinz Schmidt. "Lipid transfer proteins." Chemistry and Physics of Lipids 56, no. 1 (November 1990): 1–20. http://dx.doi.org/10.1016/0009-3084(90)90083-4.

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Tall, Alan. "Plasma Lipid Transfer Proteins." Annual Review of Biochemistry 64, no. 1 (June 1995): 235–57. http://dx.doi.org/10.1146/annurev.bi.64.070195.001315.

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Tall, A. R. "Plasma lipid transfer proteins." Journal of Lipid Research 27, no. 4 (June 1988): 361–67. http://dx.doi.org/10.1016/s0022-2275(20)38819-2.

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Jiang, Xian-Cheng, and Hong-Wen Zhou. "Plasma lipid transfer proteins." Current Opinion in Lipidology 17, no. 3 (June 2006): 302–8. http://dx.doi.org/10.1097/01.mol.0000226124.94757.ee.

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Levine, Tim P. "A lipid transfer protein that transfers lipid." Journal of Cell Biology 179, no. 1 (October 8, 2007): 11–13. http://dx.doi.org/10.1083/jcb.200709055.

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Very few lipid transfer proteins (LTPs) have been caught in the act of transferring lipids in vivo from a donor membrane to an acceptor membrane. Now, two studies (Halter, D., S. Neumann, S.M. van Dijk, J. Wolthoorn, A.M. de Maziere, O.V. Vieira, P. Mattjus, J. Klumperman, G. van Meer, and H. Sprong. 2007. J. Cell Biol. 179:101–115; D'Angelo, G., E. Polishchuk, G.D. Tullio, M. Santoro, A.D. Campli, A. Godi, G. West, J. Bielawski, C.C. Chuang, A.C. van der Spoel, et al. 2007. Nature. 449:62–67) agree that four-phosphate adaptor protein 2 (FAPP2) transfers glucosylceramide (GlcCer), a lipid that takes an unexpectedly circuitous route.

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Wong, Louise H., Alenka Čopič, and Tim P. Levine. "Advances on the Transfer of Lipids by Lipid Transfer Proteins." Trends in Biochemical Sciences 42, no. 7 (July 2017): 516–30. http://dx.doi.org/10.1016/j.tibs.2017.05.001.

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NISHIMURA, Taki. "Nanoscale Lipid Organization by Lipid Transfer Proteins." Seibutsu Butsuri 62, no. 3 (2022): 170–74. http://dx.doi.org/10.2142/biophys.62.170.

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Bourgis, Fabienne, and Jean-Claude Kader. "Lipid-transfer proteins: Tools for manipulating membrane lipids." Physiologia Plantarum 100, no. 1 (May 1997): 78–84. http://dx.doi.org/10.1111/j.1399-3054.1997.tb03456.x.

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Dissertations / Theses on the topic "Lipid transfer proteins"

Edstam, Monika. "Plant lipid transfer proteins : Evolution, expression and function." Doctoral thesis, Linköpings universitet, Biologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-98117.

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The plant non-specific lipid transfer proteins (nsLTPs) are known for the ability to transfer different lipids in vitro, but their in vivo functions have not yet been elucidated. They seem to play a role in the defense against biotic and abiotic stresses; the gene expression of nsLTPs is often upregulated when exposed to stresses. Further, two different nsLTPs have been shown to affect the lipid composition of the plant cuticle, a structure acting as a protective barrier. However, more evidence is needed to prove this hypothesis and to pinpoint their exact role in this process. In this thesis I have shown that the nsLTPs are found in all land plants, but not in any of the studied algae. This supports a role in defense response, since protection against dehydration, radiation, pathogens and other stresses played a crucial role when plants adapted to a life on land. Characterization of the nsLTPs in early diverging land plant revealed that even though the amino acid similarity towards nsLTPs in flowering plants is not very high, the main properties of the proteins are still the same (Paper I). This includes the protein structure, which consists of α-helices surrounding a lipid binding cavity, a conserved pattern of cysteine residues involved in disulphide bonds and a signal sequence directing the protein to the extracellular space. Further, the expression of nsLTPs in the moss Physcomitrella patens was shown to respond to stresses, and construction of an YFP-LTP fusion protein confirmed the localization to the periphery of the cell in planta (Paper II). Heterologous expressed Physcomitrella nsLTPs were also shown to have the ability to bind lipids and to be very heat stable, features previously only studied in nsLTPs from flowering plants. By examining the presence of a cuticle in Physcomitrella, a correlation between the nsLTPs´ lipid binding ability and the lipid composition of the cuticle could be found, which further strengthens the involvement of nsLTPs in transfer of lipids for cuticle construction. In the flowering plant Arabidopsis thaliana, I showed that several of the nsLTPs followed the same expression pattern when examining data from different tissues, stress treatments, hormones, chemical treatments and developmental stages, but also that four of the genes were undergoing alternative splicing resulting in different isoforms of the proteins (Paper III). Based on their expression patterns, the genes could be divided into three different coexpression networks. By examining other genes similarly expressed, each network could be designated to a putative function: Transfer of lipids for synthesis of the cuticle, suberin layer and sporopollenin, respectively. In Paper IV, these hypotheses were tested in vivo by examining knockout mutants of several nsLTPs in Arabidopsis. The involvement in sporopollenin deposition could be confirmed; two of the knockout lines showed collapsed pollen grains. Further, two other lines showed an increased seed coat permeability due to an altered lipid composition of the suberin layer. Together, the results support a role for nsLTPs in construction of the protecting barriers in all land plants.

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Jülke, Sabine. "Lipid-Transfer-Proteine aus Arabidopsis thaliana - physiologische und molekulare Funktionsanalyse." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-104357.

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Die durch den obligat biotrophen Protisten Plasmodiophora brassicae hervorgerufene Pflanzenkrankheit Kohlhernie verursacht weltweit hohe ökonomische Verluste. Bis heute gibt es keine effektiven Möglichkeiten, diese Pflanzenkrankheit zu bekämpfen. Eine Analyse der Genexpression in infizierten Wurzeln im Vergleich zu nicht infizierten Wurzeln ergab, dass die Gene für Lipid-Transfer-Proteine während der gesamten Krankheitsentwicklung differentiell reguliert sind. Über die Funktionen von Lipid-Transfer-Proteinen in Pflanzen wird noch spekuliert. Diskutiert wird dabei eine Funktion bei der Anpassung an verschiedene abiotische Stressfaktoren, bei der Pathogenabwehr sowie bei dem Transfer von Lipiden. In dieser Arbeit wurden transgene Pflanzen generiert, in denen die pathogenbedingte LTP-Genregulation umgekehrt ist. Es wurden transgene A. thaliana Pflanzen erzeugt, die die Gene LTP1, LTP3, LTP4, AT1G12090 sowie AT2G18370 überexprimieren und die Genexpression von AT4G33550 sowie AT1G62510 reprimieren. Die Regulation der LTP-Genexpression erfolgte dabei durch den wurzel- und keimlingsspezifischen Promotor Pyk10. Zusätzlich wurden in dieser Arbeit auch T-DNA-Insertionsmutanten für die Gene AT1G12090, AT2G18370, AT3G22620, AT5G05960, LTP3 sowie LTP4 untersucht. Mittels semiquantitativer Expressionsanalyse konnte die Modulation der LTP-Genexpression in den LTP-Mutanten bestätigt werden. Darüber hinaus konnte gezeigt werden, dass die Modulation der Expression eines LTP-Gens auch die Expression anderer LTP-Gene beeinflusst. Die phytopathologischen Analysen der LTP-Mutanten hinsichtlich der Entwicklung der Pflanzenkrankheit Kohlhernie ergab, dass die Überexpression der Gene LTP1, LTP3 sowie AT2G18370 und die Repression der Expression von AT1G62510 eine verringerte Anfälligkeit für diese Krankheit bewirkt. Die verstärkte Expression der Gene LTP1, LTP3, LTP4, AT1G12090 sowie AT2G18370 resultiert außerdem in einer verringerten Symptomentwicklung infolge einer Pseudomonas syringae-Infektion. Die verringerte Expression des Gens AT4G33550 führt hingegen zu einer größeren Anfälligkeit für eine P. brassicae Infektion; die Infektion mit P. syringae wird dadurch aber nicht beeinflusst. Die physiologische Charakterisierung der LTP-Mutanten umfasste die Analyse des Pflanzenwachstums unter Salzstress bzw. osmotischem Stress sowie die Entwicklung der Seneszenz in abgetrennten Rosettenblättern. Es konnte gezeigt werden, dass die Gene LTP1, LTP3, LTP4, AT4G33550 sowie AT1G62510 bei der Anpassung an Salzstress sowie die Gene LTP3, AT3G22620, AT4G33550 und AT1G62510 bei der Anpassung an osmotischen Stress eine Rolle spielen. Durch die Modulation der Expression der genannten Gene wird das Wachstum unter diesen Stressbedingungen sowohl positiv als auch negativ beeinflusst. Die Entwicklung der Seneszenz wird ebenfalls durch eine veränderte LTP-Genexpression (LTP1, LTP3, LTP4, AT3G22620 sowie AT4G33550) beeinflusst. Für die biochemische Charakterisierung wurden die LTP-Gene aus A. thaliana mit einem Fusionspartner in E. coli exprimiert und die resultierenden Fusionsproteine gereinigt. Diese wurden nach Abspalten des Fusionspartners hinsichtlich ihrer antimikrobiellen Aktivität und auf die Fähigkeit, Calmodulin zu binden, untersucht. Für die gereinigten Lipid-Transfer-Proteine LTP1, LTP3, LTP4, AT2G18370 sowie AT1G62510 konnte unter den bisher getesteten Versuchsbedingungen keine antimikrobielle Aktivität nachgewiesen werden. Für die Proteine LTP1, LTP3 und LTP4 konnte eine calciumunabhängige Calmodulin-Bindung nachgewiesen werden. Die Ergebnisse dieser Versuche ermöglichen keine Aussage bezüglich der genauen Funktion der einzelnen Lipid-Transfer-Proteine, geben aber Hinweise darauf, dass diese bei den entsprechenden Stress-Vorgängen eine Rolle spielen. Welche Funktion sie dabei genau erfüllen, muss in weiterführenden Analysen untersucht werden.

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Jansson, Sandra. "Regulation of non-specific lipid transfer proteins in abiotically stressed Physcomitrella patens." Thesis, Linköpings universitet, Molekylär genetik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-69438.

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Non-specific lipid transfer proteins is a large and diverse protein family found in plants, with roles in biological systems ranging from long distance signaling to plant pathogen defense. Little is known about the roles of nsLTPs, but recent studies have cast some light on the issue, among other things proposing that they may be involved in the cutice formation on land-living liverworts, mosses and non-seedbearing plants. Increased cuticle formation is thought to be a part of a plants defense system against stress. In this experiment, the expression of nsLTPs type G in the moss Physcomitrella patens was examined by qRT-PCR on cDNA synthesized from already existing mRNA samples from moss under different abiotic stresses. The different stresses were UV-light, salt (ion toxicity), heavy metal, cold drought, plant hormone and osmosis. House-keeping gene P. patens beta-tubuline 1 was used as reference and relative expression analysis was performed. The study showed a general down-regulation of PpLTPg's in the abiotically stressed samples, and the possible coupled regulatory response of PpLTPg3 and PpLTPg5. The results imply that the PpLTPg's in Physcomitrella patens could be connected to biological processes that cease during stress, or that they worl through negative feedback to support plant defense against stress.

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Höglund, Andrey. "Expression pattern of GPI-anchored non-specific lipid transfer proteins in Physcomitrella patens." Thesis, Linköpings universitet, Molekylär genetik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-71702.

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During the water-to-land transition, that occurred approximately 450 MYA, novel habitats wererevealed to the emerging plants. This terrestrial habitat was a harsh environment compared to theaquatic, with shifting substrate content, irregular supply of water, damaging UV-radiation andrapid fluctuating temperatures. Non-specific lipid transfer proteins (nsLTP) are today only foundin the land living plants and not in the green algae. This suggests that these genes might haveevolved to help the plants cope with the stressful conditions. In this study the expression patternhas been analysed of the nsLTPs in the moss Physcomitrella patens during the possible conditionsthat raised during the water-to-land transition. The moss was exposed to salt, UV-B, drought, copper, cold and osmotic stress. Quantitative real-time PCR was used to analyse the transcription levels. I found that six genes were upregulated during either cold, dehydration or UV-B stress. This suggest that these genes are involved in the plant defense against these abiotic stresse

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DeBono, Allan. "The role and behavior of Arabidopsis thaliana lipid transfer proteins during cuticular wax deposition." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/39381.

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The primary aerial surfaces of terrestrial plants are coated with a protective hydrophobic layer comprising insoluble and soluble lipids. The lipids are known collectively as cuticular wax. To generate the waxy cuticle during elongative growth, plants dedicate half of the fatty acid metabolism of their epidermal cells. It is unknown how cuticular wax is exported from the plasma membrane into the cell wall, and eventually, to the cuticle at the cell surface. I hypothesized that lipid transfer proteins (LTPs) were responsible for plasma membrane to cell wall transport of cuticular lipids. Using an epidermis-specific microarray, I identified five candidate Arabidopsis LTPs. I discovered that mutations in gene At1g27950 result in a stem wax phenotype: reduced cuticular lipid nonacosane resulting in reduced total wax compared to wildtype. This gene encodes a glycosylphosphatidylinositol (GPI)-linked LTP and thus was named LTPG. In contrast, to LTPG, no detectable wax phenotype was found in mutants for classical LTPs. In phylogenetic analyses, these LTPs clustered into a weakly related group that I named LTPAs. In an attempt to overcome genetic redundancy I made double and triple mutants from the candidate LTPAs. None of these mutants displayed detectable changes in wax compared with wildtype. Using live cell imaging, I showed that LTPG is localized to the epidermal cell plasma membrane and the cell wall and accumulates non-uniformly on the plant surface. I employed fluorescence recovery after photobleaching to demonstrate that, in the plasma membrane, LTPG is relatively immobile and exhibits a complicated recovery, the latter appears linked to the flux of cuticular lipids through the plasma membrane. LTPG accumulates over the long cell walls of stem epidermal cells and this protein moves when observed over 1 min intervals. I created a GPIlinked LTPA and demonstrated that it can rescue the ltpg-1 mutation. I demonstrate that LTPG is required for wax export by associating with the plant cell wall. This is the first experimental evidence linking the lipid transfer function of a plant LTP to a biological role, which in this case is lipid movement through the cell wall to the cuticle.

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Gatta, A. "Characterisation of a newly identified family of lipid transfer proteins at membrane contact sites." Thesis, University College London (University of London), 2016. http://discovery.ucl.ac.uk/1517331/.

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Non-vesicular intracellular lipid traffic is mediated by lipid transfer proteins (LTPs), which contain domains with an internal cavity that can solubilise and transfer lipids. One of the most widespread LTP folds is the Steroidogenic Acute Regulatory Transfer (StART) domain, which forms a hydrophobic pocket, and appears in proteins with different localisations and lipid specificities. The aim of this study was to characterise a new StART-like domain family, which we identified by a bioinformatics approach. I studied aspects of the localisations, functions and structural properties of six StART-like proteins in S. cerevisiae. The yeast StART-like proteins were endoplasmic reticulum (ER)-integral membrane proteins with transmembrane domains, and they localised at membrane contact sites: Lam1p/Lam3p, and Lam2p/Lam4p at junctions between ER and plasma membrane (PM); Lam5p/Lam6p at junctions between the ER and the vacuolar membrane, at nucleus-vacuole junction (NVJ) and at ER-mitochondria contacts. To study their functions, I purified the second StART-like domain of Lam4p, and I identified sterol as its lipid ligand from in vitro binding assays and in a spectroscopy approach with fluorescent ergosterol. We named the whole family LAM for Lipid transfer proteins Anchored at Membrane contact sites. The sterol binding property of the domains was related to a phenotype shared by LAM1, LAM2 and LAM3 delete strains, which showed an increased sensitivity to the sterol-sequestering polyene antifungal drug Amphotericin B (AmB). The two most sensitive strains (lam1∆ and lam3∆), displayed low sphingolipid levels, which is as yet unexplained. All AmB phenotypes were rescued by StART-like domains from the human LAMa, Lam2/4p and Lam5/6p, suggesting that these domains bind sterol. Simultaneous deletion of LAM1, LAM2, and LAM3 significantly reduced the extent of cortical ER-PM contacts, implying that they create the structure of the particularly punctate contact site they target. Finally, I started structural analysis of Lam4S2 to study the mechanism of sterol binding and to confirm our structural model.

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Goehring, Natalia. "Phosphatidylinositol transfer proteins : does the topology and the stored curvature elastic stress of lipid bilayers regulate membrane-association and lipid abstraction?" Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/9277.

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Lipids in a bilayer determine the stresses and the topology of the membrane they form. An understanding of the link between lipid composition and biomechanical parameters such as the spontaneous curvature and bending rigidity is key to elucidate the mechanisms behind protein‐membrane interactions. Despite their relatively low abundance in‐vivo, one of the most important class of lipids involved in signalling cascades in cells are the phosphatidylinositols (PIs) lipids. Experimental studies of the effect of phosphatidylinositol lipids upon model and cellular membrane systems remain in their infancy and have not matched the pace of discovery with respect to their role in regulating key cellular processes. Synthesised at the endoplasmic reticulum, one route for the distribution of the PIs to other organelle membranes is via translocation by the phosphatidylinositol transfer proteins (PITP). In order to study the link between membrane composition and PITP function, these proteins have been assayed for their interaction and binding with model membranes containing differing amounts of PI. Corresponding studies of the phase behaviour of these systems have been conducted using Small Angle X‐ray scattering specifically investigating the influence PI has in a bilayer membrane formed by dioleoylphosphatidylcholine, as well as in an inverted hexagonal phase formed by dioleoyl‐phosphatidylethanolamine. Additionally, a novel platform based upon a BODIPY fluorescent probe is presented, which is able to sense the stored stresses within lipid bilayers, and whose measurements are correlated these with the make‐up of membranes.

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Wright, Jenny R. "Investigation of protein-induced formation of lipid domains and their dynamics using fluorescence energy transfer /." Electronic version (PDF), 2005. http://dl.uncw.edu/etd/2005/wrightj/jennywright.pdf.

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Ahlsén, Hanna. "The Effects of Abiotic Stress on Alternative Splicing in Non-specific Lipid Transfer Proteins in Marchantia polymorpha." Thesis, Linköpings universitet, Biologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148937.

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Due to global warming, our planet will experience more extreme weather conditions. Plants can protect themselves against these abiotic stress conditions with their stress response, which includes alternative splicing of certain genes. Alternative splicing is a post-transcriptional process where a single gene gives rise to different mRNAs, which in turn produces different proteins. In plants, this is usually done by intron retention. One type of protein that may be involved in this stress response are the non-specific lipid transfer proteins (LTPs). Indeed, evidence of intron retention has been found in the LTP genes in the liverwort Marchantia polymorpha, called MpLTPd. To investigate whether this alternative splicing is caused by abiotic stress or not, I subjected the moss to two different types of stress trials, drought and cold, and compared the general expression of the intron in MpLTPd2 and MpLTPd3 from the stressed samples to samples from a moss grown under normal conditions. I found that the expression of the intron did change in the stressed moss, but none of the differences were significant. This suggests that alterative splicing in MpLTPd2 and MpLTPd3 is not caused by cold and drought and that the intron-containing protein plays no role in the protection of M. polymorpha against abiotic stress.

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Jayachandra, Pandiyan Muneeswaran. "A bioinformatics approach to investigate the function of non specific lipid transfer proteins in Arabidopsis thaliana." Thesis, Linköpings universitet, Molekylär genetik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-57337.

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Plant non specific lipid transfer proteins (nsLTPs) enhance in vitro transfer of phospholipids between membranes. Our analysis exploited the large amount of Arabidopsis transcriptome data in public databases to learn more about the function of nsLTPs. The analysis revealed that some nsLTPs are expressed only in roots, some are seed specific, and others are specific for tissues above ground whereas certain nsLTPs show a more general expression pattern. Only few nsLTPs showed a strong up or downregulation after that the Arabidopsis plant had suffered from biotic or abiotic stresses. However, salt, high osmosis and UV-B radiation caused upregulation of some nsLTP genes. Further, when the coexpression pattern of the A.thaliana nsLTPs were investigated, we found that there were several modules of nsLTP genes that showed strong coexpression indicating an involvement in related biological processes. Our finding reveals that the nsLTPs gene was significantly correlated with lipase and peroxidase activity. Hence we concluded that the nsLTPs may play a role in seed germination, signalling and ligning biosynthesis.

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Books on the topic "Lipid transfer proteins"

Strauss, Mike. Cryo-electron microscopy of membrane proteins; lipid bilayer supports and vacuum-cryo-transfer. Ottawa: National Library of Canada, 2003.

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Book chapters on the topic "Lipid transfer proteins"

Kader, J. C., F. Guerbette, C. Vergnolle, and A. Zachowski. "Lipid Transfer Proteins." In Advanced Research on Plant Lipids, 319–22. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0159-4_74.

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Guerbette, F., A. Jolliot, J. C. Kader, and M. Grosbois. "Binding of Lipids on Lipid Transfer Proteins." In Physiology, Biochemistry and Molecular Biology of Plant Lipids, 128–30. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2662-7_41.

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Tall, Alan. "Molecular Genetics of Plasma Lipid Transfer Proteins." In New Developments in Lipid—Protein Interactions and Receptor Function, 169–74. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2860-9_16.

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Kjellberg, Matti A., Anders P. E. Backman, Anna Möuts, and Peter Mattjus. "Purification and Validation of Lipid Transfer Proteins." In Methods in Molecular Biology, 231–39. New York, NY: Springer New York, 2017. http://dx.doi.org/10.1007/978-1-4939-6996-8_19.

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Storch, Judith, Jacques H. Veerkamp, and Kuo-Tung Hsu. "Similar mechanisms of fatty acid transfer from human anal rodent fatty acid-binding proteins to membranes: Liver, intestine, heart muscle, and adipose tissue FABPs." In Cellular Lipid Binding Proteins, 25–33. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/978-1-4419-9270-3_4.

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Arondel, Vincent, Chantal Vergnolle, Françoise Tchang, and Jean-Claude Kader. "Bifunctional lipid-transfer: fatty acid-binding proteins in plants." In Cellular Fatty Acid-binding Proteins, 49–56. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4615-3936-0_7.

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Tall, Alan R., Xian-cheng Jiang, Nan Wang, Takeshi Arai, and David Silver. "Lipid Transfer Proteins and Receptors in HDL Metabolism." In Lipoprotein Metabolism and Atherogenesis, 85–87. Tokyo: Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-68424-4_20.

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Petersen, A., J. Kleine-Tebbe, and S. Scheurer. "Stable Plant Food Allergens I: Lipid-Transfer Proteins." In Molecular Allergy Diagnostics, 57–75. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-42499-6_4.

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Yamada, M., S. Tsuboi, M. Kosone, T. Osafune, T. Ehara, C. Masuta, A. Koiwai, et al. "Approach to in Vivo Function of Nonspecific Lipid Transfer Proteins in Higher Plants." In Plant Lipid Metabolism, 206–9. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-015-8394-7_56.

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Lullien-Pellerin, V., T. Ihorai, C. Devaux, D. Marion, M. Ptak, P. Joudrier, and M. F. Gautier. "Site-Directed Mutagenesis of Wheat 9 kDa Lipid Transfer Protein (LTP)." In Plant Proteins from European Crops, 88–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-03720-1_15.

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Conference papers on the topic "Lipid transfer proteins"

Banneyake, B. M. R. U., and Debjyoti Banerjee. "Microfluidic Device for Synthesis of Lipid Bi-Layers." In ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/fedsm2008-55219.

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Lipid bi-layers are ubiquitous components of biological cells — and are found in variety of cell components ranging from cell membranes to membranes of organelles inside the cells. In biological membranes, lipid bi-layer membranes carry membrane proteins, which serve as single channel nanopores that are used to study transport of proteins and characterize the properties of proteins. However, lipid bi-layers have very short half lives, which are usually less than an hour. The lipid bi-layers are usually obtained by physico-chemical interactions between a lipid containing organic solvent, an aqueous buffer solution and a hydrophobic surface. We have developed a continuous flow through microfluidic device using pressure driven flow (by means of a tandem syringe pump system) for synthesis of lipid bi-layers. The microfluidic device consists of two glass substrates with micro-channels and microchambers microfabricated using photolithography and wet glass etching. The microchannels in each substrate is in the form of “+” shape and form a mirror image of each other. A Teflon sheet (∼200 microns thickness) is sandwiched between the glass substrates with a ∼200 microns diameter hole etched in the center to communicate with the two sets of microchannels. A lipid solution in an organic solvent (Pentane) and KCl buffer solution are alternately flown through the legs of the microchannel. The conductivity of the buffer is monitored using a current amplifier. The formation of the lipid bi-layer is confirmed by monitoring the resistivity and the impedance to high frequency electrical oscillations. The flow rate in the microfluidic device is optimized to obtain the lipid bi-layer.

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Gonçalves da Silva, Renan, Janeth Silva Pinheiro Marciano, Larissa Cadeo Hulm, and Sonia Marli Zingaretti. "Análise in silico do Gene LTP (Lipid Transfer Protein) sob condições de Estresse Abiótico." In Simpósio de Bioquímica e Biotecnologia. Londrina - PR, Brazil: Galoa, 2017. http://dx.doi.org/10.17648/simbbtec-2017-80906.

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Liu, Junya. "Prediction of Protein and Amino Acid Contents in Canola Seeds and Canola Meal with Near-infrared Spectroscopy." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/vkld6020.

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Aim: The current study focused on developing and validating the near-infrared reflectance spectroscopy (NIRS) calibration models for predicting protein and amino acid contents in whole canola seeds and canola meal. This research investigated the effects of sample pre-treatments involving particle size reduction and lipid extraction and different types of spectrometers, including the diode array analyzer PerkinElmer DA7250 and the Fourier transform NIRS analyzer PerkinElmer FT9700 on the predictive performance of the NIRS calibration models.Methods: In total, 480 canola whole seed samples were selected from the 2015 and 2020 cropping year populations to produce canola meal samples and then analyze crude protein and amino acids concentrations with reference chemical methods; among those, 420 samples were assigned for constructing calibration models, while 60 samples were used for the validation study. The partial least square regression technique was used for model development and verification, performed on the Unscrambler X10.3 software with the spectra obtained from PerkinElmer DA7250 for both whole seed and meal samples and PerkinElmer 9700 for meal samples only.Results and Conclusion: The calibration models of crude protein and most amino acids except for Tryptophan, Histidine and Sulphur amino acids showed an acceptable coefficient of determinations (R2C= 0.677-0.885), while the NIR models for Tryptophan, Histidine, and Sulphur amino acids were less accurate which might require more work in the future study. Sample pre-treatments like particle size reduction and lipid extraction were found that have the potential to improve prediction ability. PerkinElmer DA 7250 was discovered with a similar performance to PerkinElmer FT9700 with no significant differences. This study indicates that the results are acceptable for screening the protein and amino acid contents in canola whole seeds and meals, this could be helpful for future quality control and the implementation of breeding strategies to enhance canola protein quality.

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Therrien, Marie, Michel Lafleur, and Michel Pezolet. "On The Water Subtraction In The Fourier Transform Infrared (FTIR) Spectra Of Proteins And Lipids." In 1985 International Conference on Fourier and Computerized Infrared Spectroscopy, edited by David G. Cameron and Jeannette G. Grasselli. SPIE, 1985. http://dx.doi.org/10.1117/12.970757.

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Hobbs, Raymond, and Xiaolei Sun. "Integrated Wind, Sun, Fossil, Biomass and Nuclear for Energy Sustainability." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90129.

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The Advanced Hydrogasification Process (AHP) is being developed at Arizona Public Service (APS) to utilize the America’s abundant western coal supply to address concerns of diminishing domestic oil and natural gas resources as energy providers, while also incorporating a renewable energy and reducing greenhouse gas emissions. The AHP utilizes coal as a source for carbon, and hydrogen produced by renewable energy in the hydrogasification process to produce substitute natural gas (SNG) that can be fed to existing natural gas pipeline. The hydrogen will be produced through water electrolysis using wind firmed with off peak nuclear/coal electricity. The CO2 produced from the process will be recycled through biological approach — algae farming. With water and sun, algae will convert CO2 into starch, protein and lipids by photosynthesis.

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Reports on the topic "Lipid transfer proteins"

Porat, Ron, Gregory T. McCollum, Amnon Lers, and Charles L. Guy. Identification and characterization of genes involved in the acquisition of chilling tolerance in citrus fruit. United States Department of Agriculture, December 2007. http://dx.doi.org/10.32747/2007.7587727.bard.

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Citrus, like many other tropical and subtropical fruit are sensitive to chilling temperatures. However, application of a pre-storage temperature conditioning (CD) treatment at 16°C for 7 d or of a hot water brushing (HWB) treatment at 60°C for 20 sec remarkably enhances chilling tolerance and reduces the development of chilling injuries (CI) upon storage at 5°C. In the current research, we proposed to identify and characterize grapefruit genes that are induced by CD, and may contribute to the acquisition of fruit chilling tolerance, by two different molecular approaches: cDNA array analysis and PCR cDNA subtraction. In addition, following the recent development and commercialization of the new Affymetrix Citrus Genome Array, we further performed genome-wide transcript profiling analysis following exposure to CD and chilling treatments. To conduct the cDNA array analysis, we constructed cDNA libraries from the peel tissue of CD- and HWB-treated grapefruit, and performed an EST sequencing project including sequencing of 3,456 cDNAs from each library. Based on the obtained sequence information, we chose 70 stress-responsive and chilling-related genes and spotted them on nylon membranes. Following hybridization the constructed cDNA arrays with RNA probes from control and CD-treated fruit and detailed confirmations by RT-PCR analysis, we found that six genes: lipid-transfer protein, metallothionein-like protein, catalase, GTP-binding protein, Lea5, and stress-responsive zinc finger protein, showed higher transcript levels in flavedo of conditioned than in non-conditioned fruit stored at 5 ᵒC. The transcript levels of another four genes: galactinol synthase, ACC oxidase, temperature-induced lipocalin, and chilling-inducible oxygenase, increased only in control untreated fruit but not in chilling-tolerant CD-treated fruit. By PCR cDNA subtraction analysis we identified 17 new chilling-responsive and HWB- and CD-induced genes. Overall, characterization of the expression patterns of these genes as well as of 11 more stress-related genes by RNA gel blot hybridizations revealed that the HWB treatment activated mainly the expression of stress-related genes(HSP19-I, HSP19-II, dehydrin, universal stress protein, EIN2, 1,3;4-β-D-glucanase, and SOD), whereas the CD treatment activated mainly the expression of lipid modification enzymes, including fatty acid disaturase2 (FAD2) and lipid transfer protein (LTP). Genome wide transcriptional profiling analysis using the newly developed Affymetrix Citrus GeneChip® microarray (including 30,171 citrus probe sets) revealed the identification of three different chilling-related regulons: 1,345 probe sets were significantly affected by chilling in both control and CD-treated fruits (chilling-response regulon), 509 probe sets were unique to the CD-treated fruits (chilling tolerance regulon), and 417 probe sets were unique to the chilling-sensitive control fruits (chilling stress regulon). Overall, exposure to chilling led to expression governed arrest of general cellular metabolic activity, including concretive down-regulation of cell wall, pathogen defense, photosynthesis, respiration, and protein, nucleic acid and secondary metabolism. On the other hand, chilling enhanced various adaptation processes, such as changes in the expression levels of transcripts related to membranes, lipid, sterol and carbohydrate metabolism, stress stimuli, hormone biosynthesis, and modifications in DNA binding and transcription factors.

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