2K7O

Ca2+-S100B, refined with RDCs

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)	Protein S100-B	polymer	91	10626.9	2	UniProt (P04631) Pfam (PF01023) Pfam (PF00036)	Rattus norvegicus (rat)	S100 calcium-binding protein B, S-100 protein subunit beta, S-100 protein beta chain
2	C, D, E, F (A, B)	CALCIUM ION	non-polymer		40.1	4	Chemie (CA)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	21253.7
Non-Polymers*	Number of molecules	4
	Total formula weight	160.3
All*	Total formula weight	21414.0

*Water molecules are not included.