Document Detail


Chemical composition of exosporium from spores of Bacillus cereus.
MedLine Citation:
PMID:  4983648     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Homogeneous fragments of exosporium were extricated in centigram amounts from dormant spores of Bacillus cereus and analyzed for intrinsic constituents. The membrane proved to be chemically complex but not unique, consisting mainly of protein (52%), amino and neutral polysaccharides (20%), lipids (18%), and ash (4%). Seventeen common amino acids were identified by chromatography, and were present in usual proportions except for low levels of cystine-cysteine, methionine, tyrosine, and histidine. Glucosamine was the only amino sugar, and glucose and rhamnose were the principal neutral sugars. The lipid fraction contained 5.5% cardiolipin as the only phospholipid, 12.5% neutral lipids, and at least 19 fatty acids, among which normal C(16) and C(18) ones predominated. Calcium and phosphorus occurred in the ash. Small amounts of teichoic, ribonucleic, and dipicolinic acids were believed to represent contamination.
Authors:
L L Matz; T C Beaman; P Gerhardt
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of bacteriology     Volume:  101     ISSN:  0021-9193     ISO Abbreviation:  J. Bacteriol.     Publication Date:  1970 Jan 
Date Detail:
Created Date:  1970-03-05     Completed Date:  1970-03-05     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  2985120R     Medline TA:  J Bacteriol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  196-201     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Amino Acids / analysis
Bacillus cereus / analysis*
Calcium / analysis
Cell Membrane / analysis
Chemical Phenomena
Chemistry
Chromatography
Cysteine / analysis
Cystine / analysis
Fatty Acids / analysis
Histidine / analysis
Lipids / analysis
Methionine / analysis
Phospholipids / analysis
Phosphorus / analysis
Polysaccharides / analysis
Proteins / analysis
Spores / analysis*
Tyrosine / analysis
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Fatty Acids; 0/Lipids; 0/Phospholipids; 0/Polysaccharides; 0/Proteins; 52-90-4/Cysteine; 55520-40-6/Tyrosine; 56-89-3/Cystine; 63-68-3/Methionine; 71-00-1/Histidine; 7440-70-2/Calcium; 7723-14-0/Phosphorus
Comments/Corrections

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


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