3M32

Structural Insight into Methyl-Coenzyme M Reductase Chemistry using Coenzyme B Analogues

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D (A, D)	Methyl-coenzyme M reductase I subunit alpha	polymer	549	60508.5	2	UniProt (P11558) Pfam (PF02745) Pfam (PF02249)	Methanothermobacter marburgensis	MCR I alpha, Coenzyme-B sulfoethylthiotransferase alpha
2	B, E (B, E)	Methyl-coenzyme M reductase I subunit beta	polymer	442	47148.5	2	UniProt (P11560) Pfam (PF02783) Pfam (PF02241)	Methanothermobacter marburgensis	MCR I beta, Coenzyme-B sulfoethylthiotransferase beta
3	C, F (C, F)	Methyl-coenzyme M reductase I subunit gamma	polymer	248	28666.0	2	UniProt (P11562) Pfam (PF02240)	Methanothermobacter marburgensis	MCR I gamma, Coenzyme-B sulfoethylthiotransferase gamma
4	BA, CA, G, H, P... (E, F, A, B, C...)	MAGNESIUM ION	non-polymer		24.3	9	Chemie (MG)
5	I, X (A, D)	Coenzyme B	non-polymer		343.3	2	Chemie (TP7)
6	J, W (A, D)	FACTOR 430	non-polymer		906.6	2	Chemie (F43)
7	K, Y (A, D)	1-THIOETHANESULFONIC ACID	non-polymer		142.2	2	Chemie (COM)
8	L, Z (A, D)	O-PHOSPHONO-N-{(2E)-7-[(2-SULFOETHYL)DITHIO]HEPT-2-ENOYL}-L-THREONINE	non-polymer		481.5	2	Chemie (SHT)
9	M (A)	ACETATE ION	non-polymer		59.0	1	Chemie (ACT)
10	AA, DA, EA, N, Q (D, F, A, B)	1,2-ETHANEDIOL	non-polymer		62.1	5	Chemie (EDO)
11	O (A)	ZINC ION	non-polymer		65.4	1	Chemie (ZN)
12	T (C)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	1	Chemie (PEG)
13	FA, GA, HA, IA, JA... (A, B, C, D, E...)	water	water		18.0	2416	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	272646.0
Non-Polymers*	Number of molecules	25
	Total formula weight	4506.9
All*	Total formula weight	277152.8

*Water molecules are not included.