Publications related to Vitamin B12

Fabrication of thermo-responsive nano-valve by grafting-to in melt of poly(N-isopropylacrylamide) onto nanoporous silicon nitride membranes

Philippe Renaud, Alexandre Zenon Ivan Bojko, Raphaël Pugin, Franck Montagne

This article reports the grafting-to in melt of amino and carboxy-terminated poly(N-isopropylacrylamide) (PNIPAM) onto ultrathin nanoporous silicon nitride membranes (NSiNMs) with a mean pore size of 85 +/- 15 nm functionalized respectively with a self-ass ...

Elsevier2014

A vitamin B-12 transporter in Mycobacterium tuberculosis

John McKinney

Vitamin B-12-depende enzymes function in core biochemical pathways in Mycobacterium tuberculosis, an obligate pathogen whose metabolism in vivo is poorly understood. Although M. tuberculosis can access vitamin B-12 in vitro, it is uncertain whether the org ...

Royal Society, The2013

Corrinoid auxotrophy in the obligate organohalide respiring Dehalobacter restrictus

Christof Holliger, Julien Maillard, Aamani Rupakula Boyanapalli, Hauke Smidt

Corrinoids (derivatives of vitamin B12) are an essential cofactor of reductive dehalogenases, the key enzymes involved in the environmental-friendly process of organohalide respiration (OHR). However, genomic and physiological analyses of obligate OHR bact ...

2013

Corrinoid auxotrophy in the obligate organohalide-respiring Dehalobacter restrictus

Christof Holliger, Aamani Rupakula Boyanapalli

Corrinoids (derivatives of vitamin B12) are an essential cofactor of reductive dehalogenases, the key enzymes involved in the environmental-friendly process of organohalide respiration (OHR). However, genomic and physiological analyses of obligate OHR bact ...

2013

Diversity of cobalamin riboswitches in the corrinoid-producing organohalide respirer Desulfitobacterium hafniense

Christof Holliger, Julien Maillard, Emmanuelle Rohrbach, Aurélie Duret

The strategic adaptation of prokaryotes in polluted niches involves the efficient regulation of their metabolism. The obligate anaerobe and metabolically versatile Desulfitobacterium hafniense reductively dechlorinates halogenated organic compounds (so-cal ...

Amer Soc Microbiology2013

Corrinoid auxotrophy in the obligate organohalide respiring Dehalobacter restrictus

Christof Holliger, Julien Maillard, Aamani Rupakula Boyanapalli, Kiyan Shabestary

Background Corrinoids are an essential cofactor of reductive dehalogenases, the key enzymes of the environmental-friendly process of organohalide respiration (OHR). Dehalobacter restrictus strain PER-K23 is an obligate OHR bacterium (OHRB) able to conserve ...

2013

The corrinoid metabolism in desulfitobacterium hafniense - genetic and regulatory aspects

Christof Holliger, Julien Maillard, Emmanuelle Rohrbach, Aurélie Duret

Corrinoids (e.g. vitamin B12, cobalamin) represent a family of complex organometallic cofactors essential to the metabolism of microorganisms, animal and humans, and are involved in several enzymes such as isomerases, methyltransferases and reductive dehal ...

2012

Survey of one-carbon metabolism in Desulfitobacteria

Christof Holliger, Julien Maillard, Laure Prat

Desulfitobacterium is a Gram-positive obligate anaerobic bacterium affiliated to the Firmicutes with a highly versatile carbon and energy metabolism. Increasing interest in this genus came with its involvement in the degradation of chlorinated compounds us ...

2010

B12-BIOSYNTHESIS IN THE TETRACHLOROETHENE-RESPIRING OBLIGATE ANAEROBE DESULFITOBACTERIUM

Christof Holliger, Julien Maillard, Aurélie Duret

Tetrachloroethene (PCE) reductive dehalogenases are the key catalysts in the respiratory chain of dehalorespiring microorganisms, where they act as the terminal electron-accepting enzymes in the process. On protein level, reductive dehalogenases have been ...

2009

Functional characterization of a vitamin B12-dependent methylmalonyl pathway in Mycobacterium tuberculosis: implications for propionate metabolism during growth on fatty acids

John McKinney

Mycobacterium tuberculosis is predicted to subsist on alternative carbon sources during persistence within the human host. Catabolism of odd- and branched-chain fatty acids, branched-chain amino acids, and cholesterol generates propionyl-coenzyme A (CoA) a ...

2008

Vitamin B12

Fabrication of thermo-responsive nano-valve by grafting-to in melt of poly(N-isopropylacrylamide) onto nanoporous silicon nitride membranes

A vitamin B-12 transporter in Mycobacterium tuberculosis

Corrinoid auxotrophy in the obligate organohalide respiring Dehalobacter restrictus

Corrinoid auxotrophy in the obligate organohalide-respiring Dehalobacter restrictus

Diversity of cobalamin riboswitches in the corrinoid-producing organohalide respirer Desulfitobacterium hafniense

Corrinoid auxotrophy in the obligate organohalide respiring Dehalobacter restrictus

The corrinoid metabolism in desulfitobacterium hafniense - genetic and regulatory aspects

Survey of one-carbon metabolism in Desulfitobacteria

B12-BIOSYNTHESIS IN THE TETRACHLOROETHENE-RESPIRING OBLIGATE ANAEROBE DESULFITOBACTERIUM

Functional characterization of a vitamin B12-dependent methylmalonyl pathway in Mycobacterium tuberculosis: implications for propionate metabolism during growth on fatty acids

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B12-BIOSYNTHESIS IN THE TETRACHLOROETHENE-RESPIRING OBLIGATE ANAEROBE DESULFITOBACTERIUM

Corrinoid auxotrophy in the obligate organohalide-respiring Dehalobacter restrictus

Corrinoid auxotrophy in the obligate organohalide respiring Dehalobacter restrictus

The corrinoid metabolism in desulfitobacterium hafniense - genetic and regulatory aspects

Corrinoid auxotrophy in the obligate organohalide respiring Dehalobacter restrictus

Functional characterization of a vitamin B12-dependent methylmalonyl pathway in Mycobacterium tuberculosis: implications for propionate metabolism during growth on fatty acids

A vitamin B-12 transporter in Mycobacterium tuberculosis

Fabrication of thermo-responsive nano-valve by grafting-to in melt of poly(N-isopropylacrylamide) onto nanoporous silicon nitride membranes

Diversity of cobalamin riboswitches in the corrinoid-producing organohalide respirer Desulfitobacterium hafniense

Survey of one-carbon metabolism in Desulfitobacteria