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ENZYME entry: EC 188.8.131.52
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|Anaerobic cobalt chelatase.|
|Cobalt-sirohydrochlorin + 2 H(+) <=> sirohydrochlorin + Co(2+)|
- This enzyme is a type II chelatase, being either a monomer (CbiX) or
a homodimer (CibK) and being ATP-independent.
- CbiK from Salmonella enterica uses precorrin-2 as the substrate to
- The enzyme contains two histidines at the active site that are
thought to be involved in the deprotonation of the tetrapyrrole
substrate as well as in metal binding.
- CbiX from Bacillus megaterium inserts cobalt at the level of
sirohydrochlorin (factor-II) rather than precorrin-2.
|PRIAM enzyme-specific profiles||184.108.40.206|
|KEGG Ligand Database for Enzyme Nomenclature||220.127.116.11|
|IUBMB Enzyme Nomenclature||18.104.22.168|
|MEDLINE||Find literature relating to 22.214.171.124|
|Q72CB8, CBIKC_DESVH; ||Q72EC8, CBIKP_DESVH; ||Q05592, CBIK_SALTY; |
|O29537, CBIX_ARCFU; ||O87690, CBIX_BACME; ||Q9HQM3, CBIX_HALSA; |
|Q4JAI2, CBIX_SULAC; ||C3MZ53, CBIX_SULIA; ||C4KID1, CBIX_SULIK; |
|C3MR05, CBIX_SULIL; ||C3MWZ3, CBIX_SULIM; ||C3NGG2, CBIX_SULIN; |
|C3N773, CBIX_SULIY; ||Q980A7, CBIX_SULSO; ||Q975N6, CBIX_SULTO; |
|Q55451, CBIX_SYNY3; ||A6UWT5, CFBA_META3; ||Q8TJZ5, CFBA_METAC; |
|P61816, CFBA_METBF; ||Q12X56, CFBA_METBU; ||Q58380, CFBA_METJA; |
|Q8TY77, CFBA_METKA; ||Q8PZH6, CFBA_METMA; ||P61819, CFBA_METMP; |
|O27448, CFBA_METTH; |
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