Document Detail


Purification and stability characterization of a cell regulatory sialoglycopeptide inhibitor.
MedLine Citation:
PMID:  8530539     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Previous attempts to physically separate the cell cycle inhibitory and protease activities in preparations of a purified cell regulatory sialoglycopeptide (CeReS) inhibitor were largely unsuccessful. Gradient elution of the inhibitor preparation from a DEAE HPLC column separated the cell growth inhibitor from the protease, and the two activities have been shown to be distinct and non-overlapping. The additional purification increased the specific biological activity of the CeReS preparation by approximately two-fold. The major inhibitory fraction that eluted from the DEAE column was further analyzed by tricine-SDS-PAGE and microbore reverse phase HPLC and shown to be homogeneous in nature. Two other fractions separated by DEAE HPLC, also devoid of protease activity, were shown to be inhibitory to cell proliferation and most likely represented modified relatives of the CeReS inhibitor. The highly purified CeReS was chemically characterized for amino acid and carbohydrate composition and the role of the carbohydrate in cell proliferation inhibition, stability, and protease resistance was assessed.
Authors:
P J Moos; H K Fattaey; T C Johnson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of cellular biochemistry     Volume:  59     ISSN:  0730-2312     ISO Abbreviation:  J. Cell. Biochem.     Publication Date:  1995 Sep 
Date Detail:
Created Date:  1996-01-30     Completed Date:  1996-01-30     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8205768     Medline TA:  J Cell Biochem     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  79-90     Citation Subset:  IM; S    
Affiliation:
Center for Basic Cancer Research, Kansas State University, Manhattan 66506-4903, USA.
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MeSH Terms
Descriptor/Qualifier:
Amino Acids / analysis
Animals
Carbohydrates / analysis
Cattle
Cell Division / drug effects
Cells, Cultured
Chromatography, Gel
Chromatography, High Pressure Liquid
Chromatography, Ion Exchange
Electrophoresis, Polyacrylamide Gel
Hot Temperature
Hydrolysis
Sialoglycoproteins / chemistry,  isolation & purification*,  metabolism,  pharmacology
Grant Support
ID/Acronym/Agency:
CA09418/CA/NCI NIH HHS
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Carbohydrates; 0/Sialoglycoproteins
Investigator
Investigator/Affiliation:
B S Spooner / KS St U, Manhattan

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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