Cobalamin biosynthesis cobaltochelatase CobT subunit [Coenzyme transport and metabolism]; ...
22-544
1.18e-98
Cobalamin biosynthesis cobaltochelatase CobT subunit [Coenzyme transport and metabolism]; Cobalamin biosynthesis cobaltochelatase CobT subunit is part of the Pathway/BioSystem: Cobalamine/B12 biosynthesis
The actual alignment was detected with superfamily member COG4547:
Pssm-ID: 443611 [Multi-domain] Cd Length: 608 Bit Score: 311.73 E-value: 1.18e-98
Cobalamin biosynthesis cobaltochelatase CobT subunit [Coenzyme transport and metabolism]; ...
22-544
1.18e-98
Cobalamin biosynthesis cobaltochelatase CobT subunit [Coenzyme transport and metabolism]; Cobalamin biosynthesis cobaltochelatase CobT subunit is part of the Pathway/BioSystem: Cobalamine/B12 biosynthesis
Pssm-ID: 443611 [Multi-domain] Cd Length: 608 Bit Score: 311.73 E-value: 1.18e-98
cobaltochelatase, CobT subunit; This model describes Pseudomonas denitrificans CobT gene ...
22-548
8.93e-85
cobaltochelatase, CobT subunit; This model describes Pseudomonas denitrificans CobT gene product, which is a cobalt chelatase subunit that functions in cobalamin biosynthesis. Cobalamin (vitamin B12) can be synthesized via several pathways, including an aerobic pathway (found in Pseudomonas denitrificans) and an anaerobic pathway (found in P. shermanii and Salmonella typhimurium). These pathways differ in the point of cobalt insertion during corrin ring formation. There are apparently a number of variations on these two pathways, where the major differences seem to be concerned with the process of ring contraction. Confusion regarding the functions of enzymes found in the aerobic vs. anaerobic pathways has arisen because nonhomologous genes in these different pathways were given the same gene symbols. Thus, cobT in the aerobic pathway (P. denitrificans) is not a homolog of cobT in the anaerobic pathway (S. typhimurium). It should be noted that E. coli synthesizes cobalamin only when it is supplied with the precursor cobinamide, which is a complex intermediate. Additionally, all E. coli cobalamin synthesis genes (cobU, cobS and cobT) were named after their Salmonella typhimurium homologs which function in the anaerobic cobalamin synthesis pathway. This model describes the aerobic cobalamin pathway Pseudomonas denitrificans CobT gene product, which is a cobalt chelatase subunit, with a MW ~70 kDa. The aerobic pathway cobalt chelatase is a heterotrimeric, ATP-dependent enzyme that catalyzes cobalt insertion during cobalamin biosynthesis. The other two subunits are the P. denitrificans CobS (TIGR01650) and CobN (pfam02514 CobN/Magnesium Chelatase) proteins. To avoid potential confusion with the nonhomologous Salmonella typhimurium/E.coli cobT gene product, the P. denitrificans gene symbol is not used in the name of this model. [Biosynthesis of cofactors, prosthetic groups, and carriers, Heme, porphyrin, and cobalamin]
Pssm-ID: 130712 [Multi-domain] Cd Length: 600 Bit Score: 275.28 E-value: 8.93e-85
Cobalamin biosynthesis protein CobT VWA domain; This family consists of several bacterial ...
353-548
1.18e-41
Cobalamin biosynthesis protein CobT VWA domain; This family consists of several bacterial cobalamin biosynthesis (CobT) proteins. CobT is involved in the transformation of precorrin-3 into cobyrinic acid.
Pssm-ID: 288608 [Multi-domain] Cd Length: 220 Bit Score: 149.41 E-value: 1.18e-41
norD type: Denitrifying bacteria contain both membrane bound and periplasmic nitrate ...
364-544
1.79e-24
norD type: Denitrifying bacteria contain both membrane bound and periplasmic nitrate reductases. Denitrification plays a major role in completing the nitrogen cycle by converting nitrate or nitrite to nitrogen gas. The pathway for microbial denitrification has been established as NO3- ------> NO2- ------> NO -------> N2O ---------> N2. This reaction generally occurs under oxygen limiting conditions. Genetic and biochemical studies have shown that the first srep of the biochemical pathway is catalyzed by periplasmic nitrate reductases. This family is widely present in proteobacteria and firmicutes. This version of the domain is also present in some archaeal members. The function of the vWA domain in this sub-group is not known. Members of this subgroup have a conserved MIDAS motif.
Pssm-ID: 238731 [Multi-domain] Cd Length: 174 Bit Score: 100.09 E-value: 1.79e-24
Cobalamin biosynthesis cobaltochelatase CobT subunit [Coenzyme transport and metabolism]; ...
22-544
1.18e-98
Cobalamin biosynthesis cobaltochelatase CobT subunit [Coenzyme transport and metabolism]; Cobalamin biosynthesis cobaltochelatase CobT subunit is part of the Pathway/BioSystem: Cobalamine/B12 biosynthesis
Pssm-ID: 443611 [Multi-domain] Cd Length: 608 Bit Score: 311.73 E-value: 1.18e-98
cobaltochelatase, CobT subunit; This model describes Pseudomonas denitrificans CobT gene ...
22-548
8.93e-85
cobaltochelatase, CobT subunit; This model describes Pseudomonas denitrificans CobT gene product, which is a cobalt chelatase subunit that functions in cobalamin biosynthesis. Cobalamin (vitamin B12) can be synthesized via several pathways, including an aerobic pathway (found in Pseudomonas denitrificans) and an anaerobic pathway (found in P. shermanii and Salmonella typhimurium). These pathways differ in the point of cobalt insertion during corrin ring formation. There are apparently a number of variations on these two pathways, where the major differences seem to be concerned with the process of ring contraction. Confusion regarding the functions of enzymes found in the aerobic vs. anaerobic pathways has arisen because nonhomologous genes in these different pathways were given the same gene symbols. Thus, cobT in the aerobic pathway (P. denitrificans) is not a homolog of cobT in the anaerobic pathway (S. typhimurium). It should be noted that E. coli synthesizes cobalamin only when it is supplied with the precursor cobinamide, which is a complex intermediate. Additionally, all E. coli cobalamin synthesis genes (cobU, cobS and cobT) were named after their Salmonella typhimurium homologs which function in the anaerobic cobalamin synthesis pathway. This model describes the aerobic cobalamin pathway Pseudomonas denitrificans CobT gene product, which is a cobalt chelatase subunit, with a MW ~70 kDa. The aerobic pathway cobalt chelatase is a heterotrimeric, ATP-dependent enzyme that catalyzes cobalt insertion during cobalamin biosynthesis. The other two subunits are the P. denitrificans CobS (TIGR01650) and CobN (pfam02514 CobN/Magnesium Chelatase) proteins. To avoid potential confusion with the nonhomologous Salmonella typhimurium/E.coli cobT gene product, the P. denitrificans gene symbol is not used in the name of this model. [Biosynthesis of cofactors, prosthetic groups, and carriers, Heme, porphyrin, and cobalamin]
Pssm-ID: 130712 [Multi-domain] Cd Length: 600 Bit Score: 275.28 E-value: 8.93e-85
Cobalamin biosynthesis protein CobT VWA domain; This family consists of several bacterial ...
353-548
1.18e-41
Cobalamin biosynthesis protein CobT VWA domain; This family consists of several bacterial cobalamin biosynthesis (CobT) proteins. CobT is involved in the transformation of precorrin-3 into cobyrinic acid.
Pssm-ID: 288608 [Multi-domain] Cd Length: 220 Bit Score: 149.41 E-value: 1.18e-41
norD type: Denitrifying bacteria contain both membrane bound and periplasmic nitrate ...
364-544
1.79e-24
norD type: Denitrifying bacteria contain both membrane bound and periplasmic nitrate reductases. Denitrification plays a major role in completing the nitrogen cycle by converting nitrate or nitrite to nitrogen gas. The pathway for microbial denitrification has been established as NO3- ------> NO2- ------> NO -------> N2O ---------> N2. This reaction generally occurs under oxygen limiting conditions. Genetic and biochemical studies have shown that the first srep of the biochemical pathway is catalyzed by periplasmic nitrate reductases. This family is widely present in proteobacteria and firmicutes. This version of the domain is also present in some archaeal members. The function of the vWA domain in this sub-group is not known. Members of this subgroup have a conserved MIDAS motif.
Pssm-ID: 238731 [Multi-domain] Cd Length: 174 Bit Score: 100.09 E-value: 1.79e-24
Cobalamin biosynthesis protein CobT; This family consists of several bacterial cobalamin ...
22-230
4.84e-22
Cobalamin biosynthesis protein CobT; This family consists of several bacterial cobalamin biosynthesis (CobT) proteins. CobT is involved in the transformation of precorrin-3 into cobyrinic acid.
Pssm-ID: 428829 Cd Length: 274 Bit Score: 96.15 E-value: 4.84e-22
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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