Cloned (Comment) | Organism |
---|---|
expression of HdrB1 and HdrB2 as C-terminally His6-tagged proteins in strain MM1263 and MM1264, respectively. The His tag does not affect enzyme activity or binding | Methanococcus maripaludis |
Protein Variants | Comment | Organism |
---|---|---|
additional information | construction of two mutant strains: MM1263 containing His-tagged HdrB1, MM1264 containing His-tagged HdrB2. The strain containing His-tagged HdrB1 and a null mutation in hdrB2 grows normally, as does the strain containing His-tagged HdrB2 and a null mutation in hdrB1. Because Hdr is essential, each His-tagged protein must be functional | Methanococcus maripaludis |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
coenzyme B + coenzyme M + methanophenazine | Methanococcus maripaludis | - |
N-(7-[(2-sulfoethyl)dithio]heptanoyl)-O3-phospho-L-threonine + dihydromethanophenazine | - |
? | |
coenzyme B + coenzyme M + methanophenazine | Methanococcus maripaludis MM1265 | - |
N-(7-[(2-sulfoethyl)dithio]heptanoyl)-O3-phospho-L-threonine + dihydromethanophenazine | - |
? | |
additional information | Methanococcus maripaludis | Hdr complexes with F420-nonreducing hydrogenase, formate dehydrogenase, and formyl-MFR dehydrogenase, model of complex of proteins that interact with Hdr, overview | ? | - |
? | |
additional information | Methanococcus maripaludis MM1265 | Hdr complexes with F420-nonreducing hydrogenase, formate dehydrogenase, and formyl-MFR dehydrogenase, model of complex of proteins that interact with Hdr, overview | ? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Methanococcus maripaludis | - |
- |
- |
Methanococcus maripaludis MM1265 | - |
- |
- |
Purification (Comment) | Organism |
---|---|
recombinant C-terminally His6-tagged HdrB1 and HdrB2 by nickel affinity chromatography | Methanococcus maripaludis |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
coenzyme B + coenzyme M + methanophenazine | - |
Methanococcus maripaludis | N-(7-[(2-sulfoethyl)dithio]heptanoyl)-O3-phospho-L-threonine + dihydromethanophenazine | - |
? | |
coenzyme B + coenzyme M + methanophenazine | - |
Methanococcus maripaludis MM1265 | N-(7-[(2-sulfoethyl)dithio]heptanoyl)-O3-phospho-L-threonine + dihydromethanophenazine | - |
? | |
additional information | Hdr complexes with F420-nonreducing hydrogenase, formate dehydrogenase, and formyl-MFR dehydrogenase, model of complex of proteins that interact with Hdr, overview | Methanococcus maripaludis | ? | - |
? | |
additional information | Hdr complexes with F420-nonreducing hydrogenase, formate dehydrogenase, and formyl-MFR dehydrogenase, model of complex of proteins that interact with Hdr, overview | Methanococcus maripaludis MM1265 | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
HDR | - |
Methanococcus maripaludis |
heterodisulfide reductase | - |
Methanococcus maripaludis |
General Information | Comment | Organism |
---|---|---|
metabolism | in methanogenic Archaea, the final step of methanogenesis generates methane and a heterodisulfide of coenzyme M and coenzyme B, CoM-S-S-CoB. Reduction of this heterodisulfide by heterodisulfide reductase regenerates HS-CoM and HS-CoB in an exergonic process, methanogenic pathway with hypothesized roles for the heterodisulfide reductase complex, overview. Hdr complexes with F420-nonreducing hydrogenase, formate dehydrogenase, and formyl-methanofuran dehydrogenase, model of complex of proteins that interact with Hdr, overview | Methanococcus maripaludis |
additional information | a strain containing His-tagged HdrB1 and a null mutation in hdrB2 grows normally, as does a strain containing His-tagged HdrB2 and a null mutation in hdrB1. Because Hdr is essential, each His-tagged protein must be functional | Methanococcus maripaludis |