3SSM

MycE Methyltransferase from the Mycinamycin Biosynthetic Pathway in Complex with Mg and SAH, Crystal form 1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D	Methyltransferase	polymer	419	47035.6	4	UniProt (Q83WF2) Pfam (PF17843) In PDB	Micromonospora griseorubida
2	A, C, D	MAGNESIUM ION	non-polymer		24.3	3	Chemie (MG)
3	A, C, D	S-ADENOSYL-L-HOMOCYSTEINE	non-polymer		384.4	3	Chemie (SAH)
4		water	water		18.0	845	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 399 (UniProt: Q83WF2)

PDB	External Database	Details
Met -19	-	expression tag
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	188142.5
Non-Polymers*	Number of molecules	6
	Total formula weight	1226.1
All*	Total formula weight	189368.6

*Water molecules are not included.