1VLM

Crystal structure of SAM-dependent methyltransferase, possible histamine N-methyltransferase (TM1293) from Thermotoga maritima at 2.20 A resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	SAM-dependent methyltransferase	polymer	219	25698.8	2	UniProt (Q9X119) Pfam (PF08241) In PDB	Thermotoga maritima
2	A	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
3		water	water		18.0	109	Chemie (HOH)

Sequence modifications

A, B: 1 - 207 (UniProt: Q9X119)

PDB	External Database	Details
Mse -11	-	expression tag
Gly -10	-	expression tag
Ser -9	-	expression tag
Asp -8	-	expression tag
Lys -7	-	expression tag
Ile -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag
Mse 1	Met 1	modified residue
Mse 65	Met 65	modified residue
Mse 96	Met 96	modified residue
Mse 160	Met 160	modified residue
Mse 163	Met 163	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	51397.7
Non-Polymers*	Number of molecules	1
	Total formula weight	23.0
All*	Total formula weight	51420.7

*Water molecules are not included.