Academic literature on the topic 'Rechromatography'

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Journal articles on the topic "Rechromatography"

1

Horner, A. A. "Heterogeneous distribution of antithrombin-binding sites in rat brain heparan sulphate proteoglycans." Biochemical Journal 280, no. 2 (1991): 393–97. http://dx.doi.org/10.1042/bj2800393.

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Heparan sulphates with high binding affinity for antithrombin (HA-HS), labelled in vivo with [35S]sulphate, were extracted from rat brains and purified by chromatography on DEAE-cellulose and on antithrombin-agarose. HA-HS proteoglycans (HA-HSPG) were then separated from HA-HS chains on Sepharose CL-6B. The total HA-HSPG product was rechromatographed on antithrombin-agarose. Six HA-HSPG subfractions with differing degrees of affinity for antithrombin were recovered and treated with NaOH to release their chains. Rechromatography of these six 35S-labelled HS chain preparations on antithrombin-ag
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2

Kotani, T., K. Umeki, S. Yagihashi, K. Hirai, and S. Ohtaki. "Identification of thyroiditogenic epitope on porcine thyroid peroxidase for C57BL/6 mice." Journal of Immunology 148, no. 7 (1992): 2084–89. http://dx.doi.org/10.4049/jimmunol.148.7.2084.

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Abstract C57BL/6 mice show thyroid lesions when immunized with porcine thyroid peroxidase (pTPO) emulsified in CFA. We attempted to clarify a thyroiditogenic epitope on pTPO. Thyroid peroxidase treated with cyanogen bromide was fractionated by reverse phase chromatography, and six fractions (A to F) were obtained. Two of these fractions (D and E) stimulated lymph node cells (LNC) primed with pTPO in vitro and induced thyroiditis in vivo. Tricine-SDS-PAGE and rechromatography showed that fraction D consisted solely of a fragment of Mr 9500 Da and that fraction E contained mainly fragments of Mr
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3

Peterson, Robert E., Gail M. Shannon, and Odette L. Shotwell. "Purification of Cyclopiazonic Acid by Liquid Chromatography." Journal of AOAC INTERNATIONAL 72, no. 2 (1989): 332–35. http://dx.doi.org/10.1093/jaoac/72.2.332.

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Abstract A purification procedure for cyclopiazonic acid has been developed, using sequential preparative and semi-preparative liquid chromatography. Crude cyclopiazonic acid (324 mg) was extracted from a 1 L fermentation medium with chloroform-methanol (80 + 20), dried, dissolved in chloroform, and chromatographed on an oxalic acid/ silica preparative column with chloroform-methanol (99 + 1) as the eluant. A semi-preparative oxalic acid/silica column and chloroform- methanol (99.5 + 0.5) were then used for rechromatography of the partially purified cyclopiazonic acid. This second chromatograp
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4

Bijl, Jan P., Carlos H. Van Peteghem, and Diana A. Dekeyser. "Fluorimetric Determination of Anatoxin M1 in Cheese." Journal of AOAC INTERNATIONAL 70, no. 3 (1987): 472–75. http://dx.doi.org/10.1093/jaoac/70.3.472.

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Abstract A simple and sensitive method is proposed for the determination of aflatoxin M, in cheese. The ground cheese sample is extracted with acetone-water (3 + 1). Acetone is evaporated under vacuum, and the aqueous phase is passed through a C18 disposable cartridge. After the cartridge is washed with acetonitrile-water (1 + 9), the toxin is eluted with acetonitrile. The extract is then cleaned up on a silica cartridge. Final analysis is performed by 2-dimensional thin layer chromatography (TLC) combined with fluorodensitometry or by liquid chromatography on a reverse phase C„ column with fl
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5

Potter, K. A., and R. W. Leid. "Isolation and partial characterization of an eosinophil chemotactic factor from metacestodes of Taenia taeniaeformis (ECF-Tt)." Journal of Immunology 136, no. 5 (1986): 1712–17. http://dx.doi.org/10.4049/jimmunol.136.5.1712.

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Abstract Eosinophil chemotactic activity associated with protein extracts of Taenia taeniaeformis metacestodes was investigated. Chemotactic activity was associated with the nonbound protein after QAE cellulose chromatography of a 3 M KCl extract of homogenized larvae. When this material was precipitated with ammonium sulfate, activity was present in the 40 to 80% precipitate. Upon rechromatography on QAE cellulose equilibrated in a low ionic strength buffer, eosinophil chemotactic activity was retained by the gel and eluted after application of the NaCl gradient. Gel filtration of Sephacryl S
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6

Deagen, J. T., and P. D. Whanger. "Properties of cadmium-binding proteins in rat testes. Characteristics unlike metallothionein." Biochemical Journal 231, no. 2 (1985): 279–83. http://dx.doi.org/10.1042/bj2310279.

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Since the exposure of rats to cadmium causes zinc to accumulate in metallothionein in liver and kidney but not in a similar protein in the testes, the properties of the low-Mr cadmium-binding proteins were investigated in rat testes. Weanling rats that had been given dietary cadmium for 6 weeks were injected with 109CdCl2 and subsequently killed, and the 109Cd-labelled low-Mr proteins from testes were purified. The pooled low-Mr cadmium-containing fractions from the gel-filtration (Sephadex G-75) columns were eluted through DEAE-Sephacel columns, yielding two peaks. Each of the individual peak
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7

Alichanidis, Efstathios, and Alexandra-Maria Michaelidou. "Glycoproteins in the heat- and acid-stable fraction of ovine milk." Journal of Dairy Research 57, no. 4 (1990): 507–15. http://dx.doi.org/10.1017/s0022029900029551.

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SummaryAffinity chromatography on a concanavalin A–Sepharose support was used to isolate two glycoprotein fractions from a heat- and acid-stable fraction of ovine milk. One of these glycoprotein fractions was purified by rechromatography on DEAE-cellulose to essentially a pure protein yielding a single band on gel electro-phoresis. The apparent Mr of this glycoprotein (GP2) as estimated by electrophoresis was 50500. It contained 8·88% carbohydrate and 0·61% P. The other glycoprotein fraction (GP3) contained 0·53% P and 17·76% carbohydrate including sialic acid, mannose, galactose, fucose, gala
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8

Johnson, D. L., and S. L. Wilson. "Identification of a 150-kilodalton polypeptide that copurifies with yeast TFIIIC and binds specifically to tRNA genes." Molecular and Cellular Biology 9, no. 5 (1989): 2018–24. http://dx.doi.org/10.1128/mcb.9.5.2018-2024.1989.

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The transcription in vitro of eucaryotic tRNA genes by RNA polymerase III requires two transcription factors, designated TFIIIB and TFIIIC. One of the critical functions of TFIIIC in the transcription of tRNA genes is that it interacts directly and specifically with the two internal promoter elements of these genes. We have partially purified Saccharomyces cerevisiae TFIIIC by chromatography on Bio-Rex 70, DEAE-cellulose, and phosphocellulose resins. A 150-kilodalton (kDa) DNA-binding polypeptide copurified with TFIIIC activity. This 150-kDa protein coeluted with the DNA-binding activity of TF
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9

Johnson, D. L., and S. L. Wilson. "Identification of a 150-kilodalton polypeptide that copurifies with yeast TFIIIC and binds specifically to tRNA genes." Molecular and Cellular Biology 9, no. 5 (1989): 2018–24. http://dx.doi.org/10.1128/mcb.9.5.2018.

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The transcription in vitro of eucaryotic tRNA genes by RNA polymerase III requires two transcription factors, designated TFIIIB and TFIIIC. One of the critical functions of TFIIIC in the transcription of tRNA genes is that it interacts directly and specifically with the two internal promoter elements of these genes. We have partially purified Saccharomyces cerevisiae TFIIIC by chromatography on Bio-Rex 70, DEAE-cellulose, and phosphocellulose resins. A 150-kilodalton (kDa) DNA-binding polypeptide copurified with TFIIIC activity. This 150-kDa protein coeluted with the DNA-binding activity of TF
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10

Jalmakhanbetova, R. I., Ye M. Suleimen, N. Abe, et al. "Isolation and in silico SARS-CoV-2 main protease inhibition potential of chrysoeriol from Chondrilla brevirostris Fisch. & C.A. Mey." Bulletin of the Karaganda University. "Chemistry" series 105, no. 1 (2022): 78–85. http://dx.doi.org/10.31489/2022ch1/78-85.

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The genus Chondrilla L. comprises 22 species on the CIS territory. 16 species of them grow in Kazakhstan. All species of the genus Chondrilla L. are rubber-bearing herbaceous plants that belong to the Asteraceae family. We picked Chondrilla brevirostris Fisch. & C.A. Mey. for the chemical study. It is a perennial herb that grows in desert steppes and forest meadows. The aboveground parts of Ch. brevirostris were extracted with ethanol at room temperature. Several fractions were obtained by separating ethanol extract on column chromatography. Rechromatography and preparative thin-layer chro
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