Cofactor F430

Cofactor F430
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
  • InChI=1S/C42H52N6O13.Ni/c1-40(16-30(43)50)22(5-9-33(54)55)27-15-42-41(2,17-31(51)48-42)23(6-10-34(56)57)26(47-42)13-24-20(11-35(58)59)19(4-8-32(52)53)39(45-24)37-28(49)7-3-18-21(12-36(60)61)25(46-38(18)37)14-29(40)44-27;/h13,18-23,25,27H,3-12,14-17H2,1-2H3,(H9,43,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61);/p-1/t18-,19-,20-,21-,22+,23+,25+,27-,40-,41-,42-;/m0./s1
    Key: QFGKGCZCUVIENT-SXMZNAGASA-M
  • CC12CC(=O)NC13CC4C(C(C(=N4)CC5C(C6CCC(=O)C(=C7C(C(C(=CC(=N3)C2CCC(=O)O)[N-]7)CC(=O)O)CCC(=O)O)C6=N5)CC(=O)O)(C)CC(=O)N)CCC(=O)O.[Ni]
Properties
C
42H
51N
6NiO−
13
Molar mass 906.58014
Appearance Yellow solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

F430 is the cofactor (sometimes called the coenzyme) of the enzyme methyl coenzyme M reductase (MCR). MCR catalyzes the reaction EC 2.8.4.1 that releases methane in the final step of methanogenesis:

CH
3–S–CoM + HS–CoB → CH
4 + CoB–S–S–CoM

It is found only in methanogenic Archaea and anaerobic methanotrophic Archaea. It occurs in relatively high concentrations in archaea that are involved in reverse methanogenesis: these can contain up to 7% by weight of the nickel protein.

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