1DDZ

X-RAY STRUCTURE OF A BETA-CARBONIC ANHYDRASE FROM THE RED ALGA, PORPHYRIDIUM PURPUREUM R-1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	CARBONIC ANHYDRASE	polymer	496	54993.5	2	UniProt (Q43060) Pfam (PF00484) In PDB	Porphyridium purpureum
2	A, B	ZINC ION	non-polymer		65.4	4	Chemie (ZN)
3		water	water		18.0	612	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	109986.9
Non-Polymers*	Number of molecules	4
	Total formula weight	261.6
All*	Total formula weight	110248.6

*Water molecules are not included.