4U7K

Crystal structure of the Clostridium histolyticum colH collagenase polycystic kidney disease-like domain 2a in the presence of calcium at 1.9 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, C, D, E...	ColH protein	polymer	87	9662.4	8	UniProt (Q46085) Pfam (PF18911) In PDB	Clostridium histolyticum	Collagenase
2	A, B, C, D, E...	CALCIUM ION	non-polymer		40.1	8	Chemie (CA)
3		water	water		18.0	967	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	77299.5
Non-Polymers*	Number of molecules	8
	Total formula weight	320.6
All*	Total formula weight	77620.1

*Water molecules are not included.