3TIS

Crystal structures of yrdA from Escherichia coli, a homologous protein of gamma-class carbonic anhydrases, show possible allosteric conformations

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	Protein YrdA	polymer	183	20116.8	3	UniProt (P0A9W9) Pfam (PF00132) In PDB	Escherichia coli
2	A, B, C	ZINC ION	non-polymer		65.4	3	Chemie (ZN)
3		water	water		18.0	322	Chemie (HOH)

Sequence modifications

A, B, C: 2 - 184 (UniProt: P0A9W9)

PDB	External Database	Details
His 6	Arg 6	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	60350.3
Non-Polymers*	Number of molecules	3
	Total formula weight	196.2
All*	Total formula weight	60546.5

*Water molecules are not included.