3BOF

Cobalamin-dependent methionine synthase (1-566) from Thermotoga maritima complexed with Zn2+ and Homocysteine

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	5-methyltetrahydrofolate S-homocysteine methyltransferase	polymer	566	63633.1	2	UniProt (Q9WYA5) Pfam (PF02574) Pfam (PF00809) In PDB	Thermotoga maritima
2	A, B	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3	A, B	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
4	A	YTTRIUM (III) ION	non-polymer		88.9	1	Chemie (YT3)
5	A, B	2-AMINO-4-MERCAPTO-BUTYRIC ACID	non-polymer		135.2	2	Chemie (HCS)
6		water	water		18.0	411	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	127266.3
Non-Polymers*	Number of molecules	7
	Total formula weight	568.3
All*	Total formula weight	127834.6

*Water molecules are not included.