1Q8A

Cobalamin-dependent methionine synthase (1-566) from Thermotoga maritima (Cd2+:L-Hcy complex, Se-Met)

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	64102.1	2	UniProt (Q9WYA5) Pfam (PF02574) Pfam (PF00809) In PDB	Thermotoga maritima
2	A, B	CADMIUM ION	non-polymer		112.4	2	Chemie (CD)
3	A, B	2-AMINO-4-MERCAPTO-BUTYRIC ACID	non-polymer		135.2	2	Chemie (HCS)
4		water	water		18.0	233	Chemie (HOH)

Sequence modifications

A, B: 1 - 566 (UniProt: Q9WYA5)

PDB	External Database	Details
Mse 1	Met 1	modified residue
Mse 27	Met 27	modified residue
Mse 71	Met 71	modified residue
Mse 135	Met 135	modified residue
Mse 174	Met 174	modified residue
Mse 334	Met 334	modified residue
Mse 422	Met 422	modified residue
Mse 439	Met 439	modified residue
Mse 537	Met 537	modified residue
Mse 545	Met 545	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	128204.2
Non-Polymers*	Number of molecules	4
	Total formula weight	495.2
All*	Total formula weight	128699.4

*Water molecules are not included.