1KBA

CRYSTAL STRUCTURE OF KAPPA-BUNGAROTOXIN AT 2.3-ANGSTROM RESOLUTION

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)	KAPPA-BUNGAROTOXIN	polymer	66	7282.4	2	UniProt (P01398) Pfam (PF21947)	Bungarus multicinctus (many-banded krait)
2	C, D (A, B)	water	water		18.0	56	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	14564.7
All*	Total formula weight	14564.7

*Water molecules are not included.