F430

In this item, I explain F430 of the cofactor. Please see "Ferrari, F430" about the sportscar.

F430
Identification information
CAS registration number	73,145-13-8
PubChem	5460020
Characteristic
Chemical formula	C42H51N6NiO13+
Molar mass	906.58014 g/mol
I can put a case, the data without the special mention for normal temperature (25 degrees Celsius), the ordinary pressure (100 kPa).

F₄₃₀ is a prosthetic group of the methyl coenzyme M reductase. I am seen only in archaebacterial methane bacteria [¹]. This enzyme catalyzes the final stage of the methane fermentation.

${\displaystyle {\ce {CH3-S-CoM\ +HS-CoB->CH4\ +CoB-S-S-CoM}}}$

(coenzyme M + coenzyme B → CH4 + CoB-S-S-CoM)

Col fin

Tetrapyrrole is used for heme, chlorophyll, vitamin B12, but has tetrapyrrole returned to most that F₄₃₀ has only five double bond naturally. This unique tetrapyrrole is called a col fin (corphin). It can depend on the lack of the relative unsaturated bond and is yellow and less presents dark purple-red such as tetrapyrrole which is unsaturation. In addition, it is tetrapyrrole containing only nickel by the nature.

Footnote

1. ^ Thauer, R. K., "Biochemistry of Methanogenesis: a Tribute to Marjory Stephenson", Microbiology, 1998, 144, 2377-2406

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