Document Detail


Pyrimidine moiety of thiamin is biosynthesized from pyridoxine and histidine in Saccharomyces cerevisiae.
MedLine Citation:
PMID:  8528151     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The isotopes of [6-13C]- and [5'-2H2]pyridoxine were incorporated efficiently into the pyrimidine moiety of thiamin in S. cerevisiae. The mass fragmentation pattern showed that the C-6 and H-5' atoms of pyridoxine were incorporated into the C-6, and H-5' atoms of the pyrimidine, respectively. These findings, along with out previous results, show that the C-2', C-2, N-1, C-6, C-5, and C-5' unit of the pyrimidine are derived from the C-2', C-2, N-1, C-6, C-5 and C-5' unit of pyridoxine, and that pyrimidine is biosynthesized from pyridoxine and histidine.
Authors:
K Tazuya; C Azumi; K Yamada; H Kumaoka
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biochemistry and molecular biology international     Volume:  36     ISSN:  1039-9712     ISO Abbreviation:  Biochem. Mol. Biol. Int.     Publication Date:  1995 Jul 
Date Detail:
Created Date:  1996-01-29     Completed Date:  1996-01-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9306673     Medline TA:  Biochem Mol Biol Int     Country:  AUSTRALIA    
Other Details:
Languages:  eng     Pagination:  883-8     Citation Subset:  IM    
Affiliation:
Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Hyogo, Japan.
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MeSH Terms
Descriptor/Qualifier:
Carbon Isotopes
Deuterium
Gas Chromatography-Mass Spectrometry
Histidine / metabolism*
Isotope Labeling / methods
Pyridoxine / metabolism*
Pyrimidines / metabolism*
Saccharomyces cerevisiae / metabolism*
Thiamine / biosynthesis*
Chemical
Reg. No./Substance:
0/Carbon Isotopes; 0/Pyrimidines; 59-43-8/Thiamine; 65-23-6/Pyridoxine; 71-00-1/Histidine; 7782-39-0/Deuterium

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