5H7W

Crystal structure of 5'-nucleotidase from venom of Naja atra

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	venom 5'-nucleotidase	polymer	529	58268.1	2	Pfam (PF00149) Pfam (PF02872) UniProt (by SIFTS) (A0A2I4HXH5) In PDB	Naja atra
2	C, D	beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		586.5	2	In PDB GlyTouCan (G15407YE)
3	A	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	1	Chemie (NAG)
4	A, B	ZINC ION	non-polymer		65.4	4	Chemie (ZN)
5	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
6		water	water		18.0	954	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	116536.3
Branched	Number of molecules	2
	Total formula weight	1173.1
Non-Polymers*	Number of molecules	7
	Total formula weight	563.0
All*	Total formula weight	118272.3

*Water molecules are not included.