Abstract:
:The presence of multiple proteases in the culture filtrate of Streptomyces moderatus was detected. After preliminary purification by ammonium sulfate precipitation and decolorization using DEAE-cellulose, the fractionation of various proteases was carried out using CM-trisacryl cation-exchange chromatography. By this procedure, four different protease fractions (Fr.) were separated (Fr. I, II, III, and IV). The first fraction was further separated into two different proteolytically active fractions (Fr. IA and Fr. Ib) by DEAE-trisacryl anion-exchange chromatography. Fraction Ia was purified further by affinity chromatography on N-carbobenzoxy-D-phenylalanyl triethylenetetramine-Sepharose 4B. The second fraction (Fr. Ib) was purified by gel filtration on Ultrogel AcA 44. For the purification of the other protease fractions (Fr. II, III, and IV) single-step affinity chromatography methods were employed. Protease fractions II and III were purified by epsilon-aminocaproyl-4-(4-aminophenylazo)phenylarsonic acid Sepharose 4B and protease fraction IV was purified on epsilon-aminocaproyl trialanine-Sepharose 4B. All five proteases purified were found to be apparently homogeneous by gel electrophoretic methods.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Chandrasekaran S,Dhar SCdoi
10.1016/0003-9861(87)90582-0subject
Has Abstractpub_date
1987-09-01 00:00:00pages
395-401issue
2eissn
0003-9861issn
1096-0384pii
0003-9861(87)90582-0journal_volume
257pub_type
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journal_title:Archives of biochemistry and biophysics
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journal_title:Archives of biochemistry and biophysics
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更新日期:1993-04-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
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journal_title:Archives of biochemistry and biophysics
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doi:10.1006/abbi.1995.1371
更新日期:1995-08-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
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doi:10.1016/0003-9861(83)90115-7
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abstract::Reports suggest that microRNAs have implications in the development of several diseases including cancer. It is therefore believed that miRs may act as therapeutic targets for cancer treatment. The treatment of ovarian cancer is mainly obstructed by lack of biomarkers and efficient drug targets. Against this backdrop,...
journal_title:Archives of biochemistry and biophysics
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doi:10.1016/j.abb.2019.04.009
更新日期:2019-06-15 00:00:00
abstract::An anionic peroxidase (EC 1.11.1.7), thought to be involved in suberization, was purified 110-fold from wound-healing slices of Solanum tuberosum by a combination of ammonium sulfate fractionation, Sephadex G-100 gel filtration, isoelectric focusing, and phenyl-Sepharose CL-4B chromatography in 24% yield. The purified...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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abstract::Elevation of cytosolic level of Ca(2+) was measured by spatial screening of freshly isolated dorsal root ganglion neurons loaded with Fura-2AM after subjecting them to a moderate hypoxic solution (pO(2)=10-40 mmHg). Short exposure of neurons to hypoxia resulted in a reversible elevation of intracellular Ca(2+) to abou...
journal_title:Archives of biochemistry and biophysics
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journal_title:Archives of biochemistry and biophysics
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abstract::Many of the compounds considered for use in pharmaceutical formulations demonstrate incompatibilities with other components at high enough concentrations, including pairs of polymers, polymers and salts, or even proteins in combination with polymers, salts, or other proteins. Freeze concentration can force solutions i...
journal_title:Archives of biochemistry and biophysics
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doi:10.1006/abbi.1998.1078
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abstract::Valproic acid (dipropylacetic acid), an antiepileptic agent known to be hepatotoxic in some patients, caused inhibition of lactate gluconeogenesis, fatty acid oxidation, and fatty acid synthesis by isolated hepatocytes. The latter process was the most sensitive to valproic acid, 50% inhibition occurring at ca. 125 mic...
journal_title:Archives of biochemistry and biophysics
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abstract::The reactivities of the sulfhydryl groups of rat, turkey, human, and calf hemoglobin were studied together with the enzyme activities of glutathione peroxidase, glutathione reductase, glucose-6-phosphate dehydrogenase, and glutaredoxin in lysed erythrocytes to evaluate their roles in regulating redox homeostasis. The ...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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更新日期:1998-07-15 00:00:00