4RSR

ArsM arsenic(III) S-adenosylmethionine methyltransferase with trivalent phenyl arsencial derivative-Roxarsone

Replaces:  4KU9

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Arsenic methyltransferase	polymer	383	42312.7	1	UniProt (C0JV69) Pfam (PF13847) In PDB	Cyanidioschyzon sp.
2	A	4-arsanyl-2-nitrophenol	non-polymer		215.0	1	Chemie (RXO)
3	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4	A	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
5	A	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
6	A	2,3-DIHYDROXY-1,4-DITHIOBUTANE	non-polymer		154.3	1	Chemie (DTT)
7		water	water		18.0	124	Chemie (HOH)

Sequence modifications

A: 1 - 370 (UniProt: C0JV69)

PDB	External Database	Details
Ser 371	-	expression tag
Gly 372	-	expression tag
Ala 373	-	expression tag
Ala 374	-	expression tag
Ala 375	-	expression tag
Leu 376	-	expression tag
Glu 377	-	expression tag
His 378	-	expression tag
His 379	-	expression tag
His 380	-	expression tag
His 381	-	expression tag
His 382	-	expression tag
His 383	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	42312.7
Non-Polymers*	Number of molecules	6
	Total formula weight	496.7
All*	Total formula weight	42809.5

*Water molecules are not included.