1Z97

Human Carbonic Anhydrase III: Structural and Kinetic Study of Catalysis and Proton Transfer.

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 III	polymer	266	30376.2	1	UniProt (P07451) Pfam (PF00194) In PDB	Homo sapiens (human)	Carbonate dehydratase III, CA- III
2	A	ZINC ION	non-polymer		65.4	1	Chemie (ZN)
3		water	water		18.0	97	Chemie (HOH)

Sequence modifications

A: 1 - 261 (UniProt: P07451)

PDB	External Database	Details
Ser 183	Cys 181	engineered mutation
Ser 188	Cys 186	engineered mutation
Leu 198	Phe 196	engineered mutation
His 262	-	expression tag
His 263	-	expression tag
His 264	-	expression tag
His 265	-	expression tag
His 266	-	expression tag
His 267	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	30376.2
Non-Polymers*	Number of molecules	1
	Total formula weight	65.4
All*	Total formula weight	30441.6

*Water molecules are not included.