1g5c: Difference between revisions
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'''CRYSTAL STRUCTURE OF THE 'CAB' TYPE BETA CLASS CARBONIC ANHYDRASE FROM METHANOBACTERIUM THERMOAUTOTROPHICUM''' | {{Structure | ||
|PDB= 1g5c |SIZE=350|CAPTION= <scene name='initialview01'>1g5c</scene>, resolution 2.1Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene> and <scene name='pdbligand=EPE:4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID'>EPE</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Carbonate_dehydratase Carbonate dehydratase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.1 4.2.1.1] | |||
|GENE= | |||
}} | |||
'''CRYSTAL STRUCTURE OF THE 'CAB' TYPE BETA CLASS CARBONIC ANHYDRASE FROM METHANOBACTERIUM THERMOAUTOTROPHICUM''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1G5C is a [ | 1G5C is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Methanothermobacter_thermautotrophicus Methanothermobacter thermautotrophicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G5C OCA]. | ||
==Reference== | ==Reference== | ||
Crystal structure of the "cab"-type beta class carbonic anhydrase from the archaeon Methanobacterium thermoautotrophicum., Strop P, Smith KS, Iverson TM, Ferry JG, Rees DC, J Biol Chem. 2001 Mar 30;276(13):10299-305. Epub 2000 Nov 28. PMID:[http:// | Crystal structure of the "cab"-type beta class carbonic anhydrase from the archaeon Methanobacterium thermoautotrophicum., Strop P, Smith KS, Iverson TM, Ferry JG, Rees DC, J Biol Chem. 2001 Mar 30;276(13):10299-305. Epub 2000 Nov 28. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11096105 11096105] | ||
[[Category: Carbonate dehydratase]] | [[Category: Carbonate dehydratase]] | ||
[[Category: Methanothermobacter thermautotrophicus]] | [[Category: Methanothermobacter thermautotrophicus]] | ||
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[[Category: ZN]] | [[Category: ZN]] | ||
[[Category: beta carbonic anhydrase]] | [[Category: beta carbonic anhydrase]] | ||
[[Category: | [[Category: hepe]] | ||
[[Category: zinc]] | [[Category: zinc]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:18:26 2008'' | ||
Revision as of 12:18, 20 March 2008
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| , resolution 2.1Å | |||||||
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| Ligands: | , and | ||||||
| Activity: | Carbonate dehydratase, with EC number 4.2.1.1 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF THE 'CAB' TYPE BETA CLASS CARBONIC ANHYDRASE FROM METHANOBACTERIUM THERMOAUTOTROPHICUM
OverviewOverview
The structure of the "cab"-type beta class carbonic anhydrase from the archaeon Methanobacterium thermoautotrophicum (Cab) has been determined to 2.1-A resolution using the multiwavelength anomalous diffraction phasing technique. Cab exists as a dimer with a subunit fold similar to that observed in "plant"-type beta class carbonic anhydrases. The active site zinc is coordinated by protein ligands Cys(32), His(87), and Cys(90), with the tetrahedral coordination completed by a water molecule. The major difference between plant- and cab-type beta class carbonic anhydrases is in the organization of the hydrophobic pocket. The structure reveals a Hepes buffer molecule bound 8 A away from the active site zinc, which suggests a possible proton transfer pathway from the active site to the solvent.
About this StructureAbout this Structure
1G5C is a Single protein structure of sequence from Methanothermobacter thermautotrophicus. Full crystallographic information is available from OCA.
ReferenceReference
Crystal structure of the "cab"-type beta class carbonic anhydrase from the archaeon Methanobacterium thermoautotrophicum., Strop P, Smith KS, Iverson TM, Ferry JG, Rees DC, J Biol Chem. 2001 Mar 30;276(13):10299-305. Epub 2000 Nov 28. PMID:11096105
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