2h15 Summary

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Carbonic anhydrase inhibitors: Clashing with Ala65 as a means of designing isozyme-selective inhibitors that show low affinity for the ubiquitous isozyme II

The structure was published by Winum, J.Y., Temperini, C., El Cheikh, K., et al., Montero, J.L., Scozzafava, A., and Supuran, C.T., in 2006 in a paper entitled "Carbonic anhydrase inhibitors: clash with Ala65 as a means for designing inhibitors with low affinity for the ubiquitous isozyme II, exemplified by the crystal structure of the topiramate sulfamide analogue." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.9 Å and deposited in 2006.

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 256 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 (1-259) (CAH2_HUMAN)search Homo sapienssearch 98% 260 98%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P00918 (1 - 259) Carbonic anhydrase 2 Homo sapiens

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (P00918) Carbonic anhydrasesearch Carbonic Anhydrase IIsearch PF00194: Eukaryotic-type carbonic anhydrasesearch

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