1QX5

Crystal structure of apoCalmodulin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E... (D, I, B, J, K...)	Calmodulin	polymer	148	16721.3	8	UniProt (P62161) Pfam (PF13499) UniProt (by SIFTS) (P0DP29)	Rattus norvegicus (Norway rat)
2	I, J, K, L, M... (D, I, B, J, K...)	water	water		18.0	175	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	133770.8
All*	Total formula weight	133770.8

*Water molecules are not included.