Results 21 to 30 of about 3,260 (236)
Porphyrin and corrinoid mutants of Bacillus subtilis [PDF]
Porphyrin auxotrophs of Bacillus subtilis can be divided into two groups. Strains belonging to the first group (hemA, hemB, or hemC) are not able to synthesize or metabolize porphobilinogen. These strains require cysteine, cystine, and methionine, respectively.
András Miczák
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Recent advances in elucidation of biological corrinoid functions [PDF]
Eleven adenosylcorrinoid-dependent rearrangements and elimination reactions have been described during the last four decades of vitamin B12 research. In contrast, only the cobamide-dependent methionine synthase was well established as a corrinoid-dependent methyl transfer reaction.
Erhard Stupperich
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Observations on the Organometallic Bond of the Corrinoid Coenzymes
Harry P. C. Hogenkamp+2 more
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Biological activities of new corrinoids.
Tadashi Kamikubo+4 more
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Formation of cobalt-free corrinoids in Rhodopseudomonas spheroides.
Co-free corrinoids (CFCs) were found in the cells of Rhodopseudomonas spheroides grown without cobalt salt. A predominant fraction of three CFCs on paper-electrophoregram was further purified, and investigated physico-chemically as well as microbiologically in comparison with that isolated by Toohey from Chromatium.
Tadashi Kamikubo+2 more
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The prospects for the use of vitamin B12 derivatives in pharmacology
Background. The structure of corrin tetrapyrrole macrocycles (compounds similar in structure to vitamin B12) is a kind of universal chemical template for targeted drug delivery, and the development of chemical sensors and antidotes.Objective ...
I. Yu. Torshin+2 more
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mibPOPdb: An online database for microbial biodegradation of persistent organic pollutants
This study presents the Microbial Biodegradation of Persistent Organic Pollutants Database (mibPOPdb) database, a web‐accessible literature‐based microbial biodegradation of persistent organic pollutants (POPs) resource. We also developed a robust chemical biodegradability prediction model with Graph Neural Networks.
Tanyaradzwa R. Ngara+2 more
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A vitamin B12 transporter in Mycobacterium tuberculosis [PDF]
Vitamin B12-dependent enzymes function in core biochemical pathways in Mycobacterium tuberculosis, an obligate pathogen whose metabolism in vivo is poorly understood. Although M.
Krishnamoorthy Gopinath+6 more
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Synergism of components as the main approach to creation of a probiotic complex
Development of probiotic products containing several strains: Bifidumbacterium lactis BI-04, Lactobacillus acidophilus La-14 and Lactobacillus rhamnosus Lr-32, is an upcoming trend, as it builds capacity of preventive treatment.
E. V. Shikh+2 more
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Characterization of Vitamin B12 Compounds in Fermented Poultry Manure Fertilizers
(1) Background: Currently, no data are available on the vitamin B12 content of an organic fertilizer product, viz. fermented poultry manure, or whether the organic fertilizer product contains vitamin B12 or inactive corrinoids (or both).
Hiromi Katsura+4 more
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