4ICQ

Structural basis for substrate recognition and reaction mechanism of bacterial aminopeptidase peps

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Aminopeptidase PepS	polymer	413	45288.8	2	UniProt (Q97SP8) Pfam (PF02073) UniProt (by SIFTS) (A0A0H2UN95)	Streptococcus pneumoniae
2	C, D, E, F (A, B)	ZINC ION	non-polymer		65.4	4	Chemie (ZN)
3	G, H (A, B)	water	water		18.0	246	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	90577.7
Non-Polymers*	Number of molecules	4
	Total formula weight	261.6
All*	Total formula weight	90839.3

*Water molecules are not included.