1CAL

STRUCTURAL ANALYSIS OF THE ZINC HYDROXIDE-THR 199-GLU 106 HYDROGEN BONDING NETWORK IN HUMAN CARBONIC ANHYDRASE II

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	CARBONIC ANHYDRASE II	polymer	259	29127.8	1	UniProt (P00918) Pfam (PF00194) In PDB	Homo sapiens (human)
2	A	ZINC ION	non-polymer		65.4	1	Chemie (ZN)
3		water	water		18.0	209	Chemie (HOH)

Sequence modifications

A: 2 - 261 (UniProt: P00918)

PDB	External Database	Details
Ala 199	Thr 197	conflict

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	29127.8
Non-Polymers*	Number of molecules	1
	Total formula weight	65.4
All*	Total formula weight	29193.2

*Water molecules are not included.