1IAC

REFINED 1.8 ANGSTROMS X-RAY CRYSTAL STRUCTURE OF ASTACIN, A ZINC-ENDOPEPTIDASE FROM THE CRAYFISH ASTACUS ASTACUS L. STRUCTURE DETERMINATION, REFINEMENT, MOLECULAR STRUCTURE AND COMPARISON WITH THERMOLYSIN

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	ASTACIN	polymer	200	22618.0	1	UniProt (P07584) Pfam (PF01400) In PDB	Astacus astacus (broad-fingered crayfish)
2	A	MERCURY (II) ION	non-polymer		200.6	1	Chemie (HG)
3		water	water		18.0	172	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	22618.0
Non-Polymers*	Number of molecules	1
	Total formula weight	200.6
All*	Total formula weight	22818.6

*Water molecules are not included.