Results 121 to 130 of about 876 (161)
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Cobamide remodeling

Vitamins and Hormones, 2022
Cobamides are a family of structurally-diverse cofactors which includes vitamin B12 and over a dozen natural analogs. Within the nucleotide loop structure, cobamide analogs have variable lower ligands that fall into three categories: benzimidazoles, purines, and phenols.
Joris Beld, Amy Ma, Daniel S Kantner
exaly   +3 more sources

Demonstration of cobamide coenzyme in Ascaris suum

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1975
Abstract 1. 1. Cobamide coenzyme was extracted from the body wall of adult female Ascaris suum maintained in Ellison's medium containing vitamin B 12 . 2. 2. The identification of the coenzyme in purified fractions was based on (a) specific spectral changes following treatment of the preparation with light and cyanide, (b) coenzyme activity
Hiroshi Oya, H Oya
exaly   +3 more sources

The Cobamide Coenzymes

open access: yes, 1965
Publisher Summary Studies on the metabolism of glutamic acid by cell-free extracts of Clostridium ( Cl. ) tetanomorphum led to the isolation of the first cobamide coenzyme, the adeninylcobamide coenzyme, a derivative of pseudovitamin B 12 . The related coenzyme form of vitamin B 12 , containing 5,6-dimethylbenzimidazole (DMB) was isolated from ...
HERBERT WEISSBACH   +2 more
openaire   +2 more sources

Flexible Cobamide Metabolism in Clostridioides ( Clostridium ) difficile 630 Δ erm [PDF]

open access: yesJournal of Bacteriology, 2020
Clostridioides (Clostridium) difficile is an opportunistic pathogen known for its ability to colonize the human gut under conditions of dysbiosis. Several aspects of its carbon and amino acid metabolism have been investigated, but its cobamide (vitamin ...
Amanda Shelton, Michiko Taga
exaly   +2 more sources

THE EFFECT OF COBAMIDE COENZYME IN METHYLMALONIC ACIDEMIA

Acta Paediatrica, International Journal of Paediatrics, 1969
B, Lindblad   +3 more
exaly   +3 more sources

Uneven distribution of cobamide biosynthesis and dependence in bacteria predicted by comparative genomics

open access: yesISME Journal, 2018
The vitamin B12family of cofactors known as cobamides are essential for a variety of microbial metabolisms. We used comparative genomics of 11,000 bacterial species to analyze the extent and distribution of cobamide production and use across bacteria. We
Amanda Shelton   +2 more
exaly   +2 more sources

Cobamide-containing membrane protein complex inMethanobacterium [PDF]

open access: yesFEBS Letters, 1986
In Methanobacterium thermoautotrophicum, most of the sole cellular cobamide, 5-hydroxybenzimidazolylcobamide (factor III [(1986) Anal. Biochem., submitted]) is bound to a membrane protein.
Georg Fuchs   +3 more
exaly   +2 more sources

Biosynthesis of cobamides: Methods for the detection, analysis and production of cobamides and biosynthetic intermediates

2022
Vitamin B12, cobalamin, belongs to the broader cobamide family whose members are characterized by the presence of a cobalt-containing corrinoid ring. The ability to detect, isolate and characterize cobamides and their biosynthetic intermediates is an important prerequisite when attempting to study the synthesis of this remarkable group of compounds ...
Deery, Evelyne   +2 more
openaire   +3 more sources

COBAMIDE ABSORPTION BY EHRLICH ASCITES CARCINOMA CELLS

open access: yesAnnals of the New York Academy of Sciences, 1964
D, PERLMAN, N A, GIUFFRE
openaire   +3 more sources

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