2ac1: Difference between revisions
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[[Image:2ac1.gif|left|200px]] | [[Image:2ac1.gif|left|200px]] | ||
'''Crystal structure of a cell-wall invertase from Arabidopsis thaliana''' | {{Structure | ||
|PDB= 2ac1 |SIZE=350|CAPTION= <scene name='initialview01'>2ac1</scene>, resolution 2.15Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene> and <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Beta-fructofuranosidase Beta-fructofuranosidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.26 3.2.1.26] | |||
|GENE= At3g13790 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 Arabidopsis thaliana]) | |||
}} | |||
'''Crystal structure of a cell-wall invertase from Arabidopsis thaliana''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
2AC1 is a [ | 2AC1 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AC1 OCA]. | ||
==Reference== | ==Reference== | ||
X-ray diffraction structure of a cell-wall invertase from Arabidopsis thaliana., Verhaest M, Lammens W, Le Roy K, De Coninck B, De Ranter CJ, Van Laere A, Van den Ende W, Rabijns A, Acta Crystallogr D Biol Crystallogr. 2006 Dec;62(Pt 12):1555-63. Epub 2006, Nov 23. PMID:[http:// | X-ray diffraction structure of a cell-wall invertase from Arabidopsis thaliana., Verhaest M, Lammens W, Le Roy K, De Coninck B, De Ranter CJ, Van Laere A, Van den Ende W, Rabijns A, Acta Crystallogr D Biol Crystallogr. 2006 Dec;62(Pt 12):1555-63. Epub 2006, Nov 23. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17139091 17139091] | ||
[[Category: Arabidopsis thaliana]] | [[Category: Arabidopsis thaliana]] | ||
[[Category: Beta-fructofuranosidase]] | [[Category: Beta-fructofuranosidase]] | ||
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[[Category: five fold beta propeller]] | [[Category: five fold beta propeller]] | ||
''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 15:47:55 2008'' | ||
Revision as of 13:48, 20 March 2008
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| 2ac1, resolution 2.15Å | |||||||||||||
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| Ligands: | NAG and GOL | ||||||||||||
| Gene: | At3g13790 (Arabidopsis thaliana) | ||||||||||||
| Activity: | Beta-fructofuranosidase, with EC number 3.2.1.26 | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
Crystal structure of a cell-wall invertase from Arabidopsis thaliana
Overview
Cell-wall invertases play crucial roles during plant development. They hydrolyse sucrose into its fructose and glucose subunits by cleavage of the alpha1-beta2 glycosidic bond. Here, the structure of the Arabidopsis thaliana cell-wall invertase 1 (AtcwINV1; gene accession code At3g13790) is described at a resolution of 2.15 A. The structure comprises an N-terminal fivefold beta-propeller domain followed by a C-terminal domain formed by two beta-sheets. The active site is positioned in the fivefold beta-propeller domain, containing the nucleophile Asp23 and the acid/base catalyst Glu203 of the double-displacement enzymatic reaction. The function of the C-terminal domain remains unknown. Unlike in other GH 32 family enzyme structures known to date, in AtcwINV1 the cleft formed between both domains is blocked by Asn299-linked carbohydrates. A preliminary site-directed mutagenesis experiment (Asn299Asp) removed the glycosyl chain but did not alter the activity profile of the enzyme.
About this Structure
2AC1 is a Single protein structure of sequence from Arabidopsis thaliana. Full crystallographic information is available from OCA.
Reference
X-ray diffraction structure of a cell-wall invertase from Arabidopsis thaliana., Verhaest M, Lammens W, Le Roy K, De Coninck B, De Ranter CJ, Van Laere A, Van den Ende W, Rabijns A, Acta Crystallogr D Biol Crystallogr. 2006 Dec;62(Pt 12):1555-63. Epub 2006, Nov 23. PMID:17139091
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