6SMK

Crystal structure of catalytic domain A109H mutant of prophage-encoded M23 protein EnpA from Enterococcus faecalis.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, D, C, E	Peptidase_M23 domain-containing protein	polymer	142	15048.7	5	UniProt (Q835A4) Pfam (PF01551) In PDB	Enterococcus faecalis (strain ATCC 700802 / V583)
2	A, B, D, C, E	ZINC ION	non-polymer		65.4	5	Chemie (ZN)
3		water	water		18.0	39	Chemie (HOH)

Sequence modifications

A, B, D, C, E: 2 - 135 (UniProt: Q835A4)

PDB	External Database	Details
Met 1	-	initiating methionine
Ala 109	His 1480	engineered mutation
Ser 136	-	expression tag
His 137	-	expression tag
His 138	-	expression tag
His 139	-	expression tag
His 140	-	expression tag
His 141	-	expression tag
His 142	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	75243.6
Non-Polymers*	Number of molecules	5
	Total formula weight	327.0
All*	Total formula weight	75570.7

*Water molecules are not included.