Total Synthesis, Structure, and Biological Activity of Adenosylrhodibalamin, the Non-Natural Rhodium Homologue of Coenzyme B12. [PDF]
B12 is unique among the vitamins as it is biosynthesized only by certain prokaryotes. The complexity of its synthesis relates to its distinctive cobalt corrin structure, which is essential for B12 biochemistry and renders coenzyme B12 (AdoCbl) so ...
Deery, Evelyne+8 more
core +3 more sources
Cobalamin (CBL), the biologically active form of vitamin B12, and its analogs, are produced by bacteria only if cobalt supply is adequate. The analogs differ generally by the nucleotide moiety of the molecule.
A. Brito+4 more
doaj
Influence of vitamin B12 and light on the formation of chlorosomes in green- and brown-colored Chlorobium species [PDF]
The specific Bchl a and c content of the vitamin B12-dependent Chlorobium limicola strain 1230 decreased strongly under vitamin B12 limitation. In comparison to a regularly grown culture (20 g vitamin B12/l) the specific Bchl c content of a B12-limited ...
Fischer, Ulrich+3 more
core +1 more source
ABC Transporter for Corrinoids in Halobacterium sp. Strain NRC-1
We report evidence for the existence of a putative ABC transporter for corrinoid utilization in the extremely halophilic archaeon Halobacterium sp. strain NRC-1.
J. Woodson+2 more
semanticscholar +1 more source
The folate‐binding module of Thermus thermophilus cobalamin‐dependent methionine synthase displays a distinct variation of the classical TIM barrel: a TIM barrel with a `twist’ [PDF]
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141455/1/ayd2kw5140 ...
Koutmos, Markos, Yamada, Kazuhiro
core +1 more source
Synthesis of Cobalamin Analogues Using Enzymatic and Chemical Modification Methods, and Subsequent Identification of Cobalamin Localisation in a Variety of Organisms [PDF]
Cobalamin, also known as vitamin B12, is an essential nutrient for many different organisms including mammals, fish, birds, nematodes, and a variety of bacteria. However, cobalamin is only synthesised by a few bacteria and archaea.
Nemoto-Smith, Emi H
core +1 more source
Über die a-b-Isomerie der Cyano-aquo-corrinoide
Two isomers, a and b, of the tetracarbonic acid and some tri-, di- and monocarbonic acids, all derived from cobyric acid, have been crystallized. Two cobinamide monocarbonic acids have also been crystallized. The two crystalline tetracarbonic acids are both stable at 20 °C. They differ from each other in crystal shape.
Rainer Bieganowski+3 more
openaire +3 more sources
Charakterisierung der mikrobiellen Dehalogenierung mit der komponenten-spezifischen stabilen Isotopenanalyse [PDF]
Im Verlauf des letzten Jahrzehnts haben sich verschiedene Konzepte für die Anwendung in der komponenten-spezifischen stabilen Isotopenanalyse entwickelt, die einen Zugang zur Evaluierung von der in situ (Bio-)Transformation, wie auch (bio-) chemischen ...
Renpenning, Julian
core +1 more source
MICROBIAL DEGRADATION OF CORRINOIDS I.
W. M. Scott+3 more
openalex +1 more source
Microbial Degradation of Corrinoids VI. Reduction of Hydroxocobalamin by Cell-free Particles fromPseudomonas rubescens [PDF]
J. B. Hufham+3 more
openalex +1 more source