3MZ8

Crystal Structure of Zinc-Bound Natrin From 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 (A, B)	Natrin-1	polymer	221	24981.1	2	UniProt (Q7T1K6) Pfam (PF00188) Pfam (PF08562)	Naja atra (Chinese cobra)	natrin, Cysteine-rich venom protein 1, NA-CRVP1, Protein G2a
2	C, D (A, B)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3	E, F (A, B)	water	water		18.0	170	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	49962.2
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	50093.0

*Water molecules are not included.