3rld Summary

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Crystal structure of the Y7I mutant of human carbonic anhydrase II

The structure was published by Mikulski, R., Avvaru, B.S., Tu, C., Case, N., McKenna, R., and Silverman, D.N., in 2011 in a paper entitled "Kinetic and crystallographic studies of the role of tyrosine 7 in the active site of human carbonic anhydrase II." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.5 Å and deposited in 2011.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of Carbonic anhydrase 2. This molecule has the UniProt identifier P00918 (CAH2_HUMAN)search. The sample contained 260 residues which is 100% of the natural sequence. Out of 260 residues 257 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Carbonic anhydrase 2 P00918 (1-260) (CAH2_HUMAN)search Homo sapienssearch 98% 260 98%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P00918 (1 - 260) Carbonic anhydrase 2 Homo sapiens

Chain Sequence family (Pfam)
A (P00918) PF00194: Eukaryotic-type carbonic anhydrasesearch

Chain ID Cellular component (GO) Biological process (GO) Molecular function (GO)
A (P00918) cytoplasmsearch plasma membranesearch extracellular vesicular exosomesearch cytosolsearch apical part of cellsearch axonsearch myelin sheathsearch membranesearch extracellular spacesearch basolateral plasma membranesearch microvillussearch regulation of chloride transportsearch response to steroid hormonesearch positive regulation of cellular pH reductionsearch bicarbonate transportsearch response to organic substancesearch morphogenesis of an epitheliumsearch response to estrogensearch regulation of anion transportsearch one-carbon metabolic processsearch odontogenesis of dentin-containing toothsearch positive regulation of dipeptide transmembrane transportsearch response to pHsearch regulation of intracellular pHsearch positive regulation of synaptic transmission, GABAergicsearch positive regulation of osteoclast differentiationsearch secretionsearch kidney developmentsearch angiotensin-activated signaling pathwaysearch positive regulation of bone resorptionsearch small molecule metabolic processsearch response to zinc ionsearch protein bindingsearch carbonate dehydratase activitysearch lyase activitysearch zinc ion bindingsearch metal ion bindingsearch

Chain InterPro annotation
A Alpha carbonic anhydrasesearch Carbonic anhydrase, alpha-class, conserved sitesearch Carbonic anhydrase 2search Carbonic anhydrase, alpha-classsearch