1EXR

THE 1.0 ANGSTROM CRYSTAL STRUCTURE OF CA+2 BOUND CALMODULIN

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	CALMODULIN	polymer	148	16687.4	1	UniProt (P07463) Pfam (PF13499) In PDB	Paramecium tetraurelia
2	A	CALCIUM ION	non-polymer		40.1	5	Chemie (CA)
3		water	water		18.0	178	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	16687.4
Non-Polymers*	Number of molecules	5
	Total formula weight	200.4
All*	Total formula weight	16887.8

*Water molecules are not included.