Article: Sequestration of carbon dioxide by the hydrophobic pocket of the carbonic anhydrases.
2009 Volume 1804, Issue 2, Page(s) 326–331
Abstract: The interaction between carbon dioxide (CO(2)) and the alpha-class carbonic anhydrase, human CA 2 (HCA2) exists for only a short period due to the rapid catalytic turnover by this enzyme. The fleeting nature of this interaction has led to difficulties in ...
Abstract | The interaction between carbon dioxide (CO(2)) and the alpha-class carbonic anhydrase, human CA 2 (HCA2) exists for only a short period due to the rapid catalytic turnover by this enzyme. The fleeting nature of this interaction has led to difficulties in its direct analysis, with previous studies placing the CO(2) in the hydrophobic pocket of HCA2's active site. A more precise location was determined via the crystal structure of CO(2) trapped in both wild-type (holo) and zinc-free (apo) HCA2. This provided a detailed description of the means by which CO(2) is held and orientated for optimal catalysis. This information can be extended to the beta and gamma class enzymes to help elucidate the binding mode of CO(2) in these enzymes. |
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MeSH term(s) | Animals ; Carbon Dioxide/chemistry ; Carbon Dioxide/metabolism ; Carbonic Anhydrases/chemistry ; Carbonic Anhydrases/metabolism ; Catalysis ; Humans ; Hydrophobic and Hydrophilic Interactions |
Chemical Substances | Carbon Dioxide (142M471B3J) ; Carbonic Anhydrases (EC 4.2.1.1) |
Language | English |
Publishing date | 2009-08-11 |
Publishing country | Netherlands |
Document type | Journal Article ; Research Support, N.I.H., Extramural ; Review |
ZDB-ID | 60-7 |
ISSN | 1879-2596 ; 1879-260X ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650 ; 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399 |
ISSN (online) | 1879-2596 ; 1879-260X ; 1872-8006 ; 1879-2642 ; 1879-2618 ; 1879-2650 |
ISSN | 0006-3002 ; 0005-2728 ; 0005-2736 ; 0304-4165 ; 0167-4838 ; 1388-1981 ; 0167-4889 ; 0167-4781 ; 0304-419X ; 1570-9639 ; 0925-4439 ; 1874-9399 |
DOI | 10.1016/j.bbapap.2009.07.025 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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