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1zlb
From Proteopedia
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| - | [[Image:1zlb.gif|left|200px]] | + | [[Image:1zlb.gif|left|200px]] |
| - | + | ||
| - | '''Crystal structure of catalytically-active phospholipase A2 in the absence of calcium''' | + | {{Structure |
| + | |PDB= 1zlb |SIZE=350|CAPTION= <scene name='initialview01'>1zlb</scene>, resolution 0.97Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Phospholipase_A(2) Phospholipase A(2)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.1.4 3.1.1.4] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''Crystal structure of catalytically-active phospholipase A2 in the absence of calcium''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1ZLB is a [ | + | 1ZLB is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bothrops_jararacussu Bothrops jararacussu]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZLB OCA]. |
==Reference== | ==Reference== | ||
| - | Insights into metal ion binding in phospholipases A2: ultra high-resolution crystal structures of an acidic phospholipase A2 in the Ca2+ free and bound states., Murakami MT, Gabdoulkhakov A, Genov N, Cintra AC, Betzel C, Arni RK, Biochimie. 2006 May;88(5):543-9. Epub 2005 Dec 5. PMID:[http:// | + | Insights into metal ion binding in phospholipases A2: ultra high-resolution crystal structures of an acidic phospholipase A2 in the Ca2+ free and bound states., Murakami MT, Gabdoulkhakov A, Genov N, Cintra AC, Betzel C, Arni RK, Biochimie. 2006 May;88(5):543-9. Epub 2005 Dec 5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16376474 16376474] |
[[Category: Bothrops jararacussu]] | [[Category: Bothrops jararacussu]] | ||
[[Category: Phospholipase A(2)]] | [[Category: Phospholipase A(2)]] | ||
| Line 24: | Line 33: | ||
[[Category: toxin]] | [[Category: toxin]] | ||
| - | ''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 15:36:53 2008'' |
Revision as of 13:36, 20 March 2008
| |||||||
| , resolution 0.97Å | |||||||
|---|---|---|---|---|---|---|---|
| Activity: | Phospholipase A(2), with EC number 3.1.1.4 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of catalytically-active phospholipase A2 in the absence of calcium
Overview
The electrophile Ca(2+) is an essential multifunctional co-factor in the phospholipase A(2) mediated hydrolysis of phospholipids. Crystal structures of an acidic phospholipase A(2) from the venom of Bothrops jararacussu have been determined both in the Ca(2+) free and bound states at 0.97 and 1.60 A resolutions, respectively. In the Ca(2+) bound state, the Ca(2+) ion is penta-coordinated by a distorted pyramidal cage of oxygen and nitrogen atoms that is significantly different to that observed in structures of other Group I/II phospholipases A(2). In the absence of Ca(2+), a water molecule occupies the position of the Ca(2+) ion and the side chain of Asp49 and the calcium-binding loop adopts a different conformation.
About this Structure
1ZLB is a Single protein structure of sequence from Bothrops jararacussu. Full crystallographic information is available from OCA.
Reference
Insights into metal ion binding in phospholipases A2: ultra high-resolution crystal structures of an acidic phospholipase A2 in the Ca2+ free and bound states., Murakami MT, Gabdoulkhakov A, Genov N, Cintra AC, Betzel C, Arni RK, Biochimie. 2006 May;88(5):543-9. Epub 2005 Dec 5. PMID:16376474
Page seeded by OCA on Thu Mar 20 15:36:53 2008
