3ibl Summary

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The crystal structure of the human carbonic anhydrase II in complex with an aliphatic bis-sulfamate inhibitor

The structure was published by Vitale, R.M., Alterio, V., Innocenti, A., et al., Monti, S.M., De Simone, G., and Supuran, C.T., in 2009 in a paper entitled "Carbonic anhydrase inhibitors. Comparison of aliphatic sulfamate/bis-sulfamate adducts with isozymes II and IX as a platform for designing tight-binding, more isoform-selective inhibitors" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.55 Å and deposited in 2009.

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 259 residues which is 100% of the natural sequence. Out of 259 residues 258 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 (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 2 Homo sapiens

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

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

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