1if9 Summary

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Carbonic Anhydrase II Complexed With N-[2-(1H-Indol-5-yl)-butyl]-4-sulfamoyl-benzamide

The structure was published by Grzybowski, B.A., Ishchenko, A.V., Kim, C.Y., et al., Christianson, D.W., Whitesides, G.M., and Shakhnovich, E.I., in 2002 in a paper entitled "Combinatorial computational method gives new picomolar ligands for a known enzyme." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.0 Å and deposited in 2001.

The experimental data on which the structure is based was not deposited.

The PDB entry contains the structure of CARBONIC ANHYDRASE II. This molecule has the UniProt identifier P00918 (CAH2_HUMAN)search. The sample contained 259 residues which is 100% of the natural sequence. Out of 259 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 II P00918 (2-260) (CAH2_HUMAN)search Homo sapienssearch 98% 259 99%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P00918 (2 - 260) CARBONIC ANHYDRASE II 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 Molecular function (GO) Cellular component (GO) Biological process (GO)
A (P00918) zinc ion bindingsearch carbonate dehydratase activitysearch lyase activitysearch protein bindingsearch metal ion bindingsearch cytoplasmsearch cytosolsearch plasma membranesearch extracellular spacesearch apical part of cellsearch basolateral plasma membranesearch axonsearch extracellular vesicular exosomesearch myelin sheathsearch membranesearch microvillussearch response to steroid hormonesearch kidney developmentsearch positive regulation of cellular pH reductionsearch regulation of intracellular pHsearch positive regulation of synaptic transmission, GABAergicsearch positive regulation of bone resorptionsearch response to estrogensearch bicarbonate transportsearch morphogenesis of an epitheliumsearch positive regulation of dipeptide transmembrane transportsearch odontogenesis of dentin-containing toothsearch positive regulation of osteoclast differentiationsearch secretionsearch response to pHsearch one-carbon metabolic processsearch regulation of chloride transportsearch response to organic substancesearch angiotensin-activated signaling pathwaysearch small molecule metabolic processsearch response to zinc ionsearch regulation of anion transportsearch

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