Evaluation of biosynthetic pathways to delta-aminolevulinic acid in Propionibacterium shermanii based on biosynthesis of vitamin B-12 from D-[1-C-13]glucose

Citation
K. Iida et M. Kajiwara, Evaluation of biosynthetic pathways to delta-aminolevulinic acid in Propionibacterium shermanii based on biosynthesis of vitamin B-12 from D-[1-C-13]glucose, BIOCHEM, 39(13), 2000, pp. 3666-3670
Citations number
29
Categorie Soggetti
Biochemistry & Biophysics
Journal title
BIOCHEMISTRY
ISSN journal
00062960 → ACNP
Volume
39
Issue
13
Year of publication
2000
Pages
3666 - 3670
Database
ISI
SICI code
0006-2960(20000404)39:13<3666:EOBPTD>2.0.ZU;2-C
Abstract
Analysis of the C-13 nuclear magnetic resonance (NMR) spectrum of C-13-labe led vitamin B-12 biosynthesized from D-[1-C-13]glucose by Propionibacterium shermanii provided evidence suggesting that delta-aminolevulinic acid (ALA ) incorporated in the C-13-labeled vitamin B-12 may have been synthesized v ia both the Shemin pathway and the C5 pathway under anaerobic conditions in the ratio of 1 < [(ratio of ALA biosynthesis from the Shemin pathway)/(tha t from the C5 pathway)] < 1.8. The D-ribose moiety of vitamin B-12 was labe led with C-13 at R-1, R-3, and R-5. The aminopropanol moiety of vitamin BI was labeled on Pr-1 and Pr-2, but not Pr-3.