1ffq
From Proteopedia
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|PDB= 1ffq |SIZE=350|CAPTION= <scene name='initialview01'>1ffq</scene>, resolution 1.9Å | |PDB= 1ffq |SIZE=350|CAPTION= <scene name='initialview01'>1ffq</scene>, resolution 1.9Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=AMI:ALLOSAMIZOLINE'>AMI</scene> | + | |LIGAND= <scene name='pdbligand=AMI:ALLOSAMIZOLINE'>AMI</scene>, <scene name='pdbligand=NAA:N-ACETYL-D-ALLOSAMINE'>NAA</scene> |
| - | |ACTIVITY= [http://en.wikipedia.org/wiki/Chitinase Chitinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.14 3.2.1.14] | + | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Chitinase Chitinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.14 3.2.1.14] </span> |
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[1edq|1EDQ]], [[1ehn|1EHN]], [[1eib|1EIB]], [[1ffr|1FFR]], [[1ctn|1CTN]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ffq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ffq OCA], [http://www.ebi.ac.uk/pdbsum/1ffq PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ffq RCSB]</span> | ||
}} | }} | ||
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[[Category: Tavlas, G.]] | [[Category: Tavlas, G.]] | ||
[[Category: Vorgias, C E.]] | [[Category: Vorgias, C E.]] | ||
| - | [[Category: AMI]] | ||
[[Category: enzyme-inhibitor complex]] | [[Category: enzyme-inhibitor complex]] | ||
[[Category: glycosyl hydrolase]] | [[Category: glycosyl hydrolase]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:21:58 2008'' |
Revision as of 17:22, 30 March 2008
| |||||||
| , resolution 1.9Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , | ||||||
| Activity: | Chitinase, with EC number 3.2.1.14 | ||||||
| Related: | 1EDQ, 1EHN, 1EIB, 1FFR, 1CTN
| ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF CHITINASE A COMPLEXED WITH ALLOSAMIDIN
Overview
The purification scheme of chitinase A (ChiA) from S. marcescens has been extensively revised. The pure enzyme crystallizes readily under new crystallization conditions. The ChiA crystal structure has been refined to 1.55 A resolution and the crystal structure of ChiA co-crystallized with the inhibitor allosamidin has been refined to 1.9 A resolution. Allosamidin is located in the deep active-site tunnel of ChiA and interacts with three important residues: Glu315, the proton donor of the catalysis, Asp313, which adopts two conformations in the native structure but is oriented towards Glu315 in the inhibitor complex, and Tyr390, which lies opposite Glu315 in the active-site tunnel.
About this Structure
1FFQ is a Single protein structure of sequence from Serratia marcescens. Full crystallographic information is available from OCA.
Reference
De novo purification scheme and crystallization conditions yield high-resolution structures of chitinase A and its complex with the inhibitor allosamidin., Papanikolau Y, Tavlas G, Vorgias CE, Petratos K, Acta Crystallogr D Biol Crystallogr. 2003 Feb;59(Pt 2):400-3. Epub 2003, Jan 23. PMID:12554965
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