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1shv
From Proteopedia
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| - | [[Image:1shv.jpg|left|200px]] | + | [[Image:1shv.jpg|left|200px]] |
| - | + | ||
| - | '''STRUCTURE OF SHV-1 BETA-LACTAMASE''' | + | {{Structure |
| + | |PDB= 1shv |SIZE=350|CAPTION= <scene name='initialview01'>1shv</scene>, resolution 1.98Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=MA4:CYCLOHEXYL-HEXYL-BETA-D-MALTOSIDE'>MA4</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Beta-lactamase Beta-lactamase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.2.6 3.5.2.6] | ||
| + | |GENE= BLA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=573 Klebsiella pneumoniae]) | ||
| + | }} | ||
| + | |||
| + | '''STRUCTURE OF SHV-1 BETA-LACTAMASE''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1SHV is a [ | + | 1SHV is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Klebsiella_pneumoniae Klebsiella pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SHV OCA]. |
==Reference== | ==Reference== | ||
| - | Structure of the SHV-1 beta-lactamase., Kuzin AP, Nukaga M, Nukaga Y, Hujer AM, Bonomo RA, Knox JR, Biochemistry. 1999 May 4;38(18):5720-7. PMID:[http:// | + | Structure of the SHV-1 beta-lactamase., Kuzin AP, Nukaga M, Nukaga Y, Hujer AM, Bonomo RA, Knox JR, Biochemistry. 1999 May 4;38(18):5720-7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10231522 10231522] |
[[Category: Beta-lactamase]] | [[Category: Beta-lactamase]] | ||
[[Category: Klebsiella pneumoniae]] | [[Category: Klebsiella pneumoniae]] | ||
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[[Category: penicillinase]] | [[Category: penicillinase]] | ||
| - | ''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 14:05:11 2008'' |
Revision as of 12:05, 20 March 2008
| |||||||
| , resolution 1.98Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | BLA (Klebsiella pneumoniae) | ||||||
| Activity: | Beta-lactamase, with EC number 3.5.2.6 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURE OF SHV-1 BETA-LACTAMASE
Overview
The X-ray crystallographic structure of the SHV-1 beta-lactamase has been established. The enzyme crystallizes from poly(ethylene glycol) at pH 7 in space group P212121 with cell dimensions a = 49.6 A, b = 55.6 A, and c = 87.0 A. The structure was solved by the molecular replacement method, and the model has been refined to an R-factor of 0.18 for all data in the range 8.0-1.98 A resolution. Deviations of model bonds and angles from ideal values are 0.018 A and 1.8 degrees, respectively. Overlay of all 263 alpha-carbon atoms in the SHV-1 and TEM-1 beta-lactamases results in an rms deviation of 1.4 A. Largest deviations occur in the H10 helix (residues 218-224) and in the loops between strands in the beta-sheet. All atoms in residues 70, 73, 130, 132, 166, and 234 in the catalytic site of SHV-1 deviate only 0.23 A (rms) from atoms in TEM-1. However, the width of the substrate binding cavity in SHV-1, as measured from the 104-105 and 130-132 loops on one side to the 235-238 beta-strand on the other side, is 0.7-1.2 A wider than in TEM-1. A structural analysis of the highly different affinity of SHV-1 and TEM-1 for the beta-lactamase inhibitory protein BLIP focuses on interactions involving Asp/Glu104.
About this Structure
1SHV is a Single protein structure of sequence from Klebsiella pneumoniae. Full crystallographic information is available from OCA.
Reference
Structure of the SHV-1 beta-lactamase., Kuzin AP, Nukaga M, Nukaga Y, Hujer AM, Bonomo RA, Knox JR, Biochemistry. 1999 May 4;38(18):5720-7. PMID:10231522
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