1pc9
From Proteopedia
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| - | [[Image:1pc9.gif|left|200px]] | + | [[Image:1pc9.gif|left|200px]] |
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| - | '''Crystal Structure of BnSP-6, a Lys49-Phospholipase A2''' | + | {{Structure |
| + | |PDB= 1pc9 |SIZE=350|CAPTION= <scene name='initialview01'>1pc9</scene>, resolution 2.5Å | ||
| + | |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 BnSP-6, a Lys49-Phospholipase A2''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1PC9 is a [ | + | 1PC9 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bothrops_neuwiedi_pauloensis Bothrops neuwiedi pauloensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PC9 OCA]. |
==Reference== | ==Reference== | ||
| - | Crystal structures of BnSP-7 and BnSP-6, two Lys49-phospholipases A(2): quaternary structure and inhibition mechanism insights., Magro AJ, Soares AM, Giglio JR, Fontes MR, Biochem Biophys Res Commun. 2003 Nov 21;311(3):713-20. PMID:[http:// | + | Crystal structures of BnSP-7 and BnSP-6, two Lys49-phospholipases A(2): quaternary structure and inhibition mechanism insights., Magro AJ, Soares AM, Giglio JR, Fontes MR, Biochem Biophys Res Commun. 2003 Nov 21;311(3):713-20. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14623331 14623331] |
[[Category: Bothrops neuwiedi pauloensis]] | [[Category: Bothrops neuwiedi pauloensis]] | ||
[[Category: Phospholipase A(2)]] | [[Category: Phospholipase A(2)]] | ||
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[[Category: Magro, A J.]] | [[Category: Magro, A J.]] | ||
[[Category: Soares, A M.]] | [[Category: Soares, A M.]] | ||
| - | [[Category: | + | [[Category: bothrop]] |
[[Category: crystal structure]] | [[Category: crystal structure]] | ||
[[Category: lys49-phospholipase a2]] | [[Category: lys49-phospholipase a2]] | ||
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[[Category: venom.]] | [[Category: venom.]] | ||
| - | ''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 13:22:33 2008'' |
Revision as of 11:22, 20 March 2008
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| , resolution 2.5Å | |||||||
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| Activity: | Phospholipase A(2), with EC number 3.1.1.4 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal Structure of BnSP-6, a Lys49-Phospholipase A2
Overview
Phospholipases A(2) are components of Bothrops venoms responsible for disruption of cell membrane integrity via hydrolysis of its phospholipids. A class of PLA(2)-like proteins has been described which despite PLA(2) activity on artificial substrate, due to a D49K mutation, is still highly myonecrotic. This work reports the X-ray structure determination of two Lys49-PLA(2)s from Bothrops neuwiedi pauloensis (BnSP-7 and BnSP-6) and, for the first time, the comparison of eight dimeric Lys49-PLA(2)s. This comparison reveals that there are not just two ("open" and "closed") but at least six different conformations. The binding of fatty acid observed in three recent Lys49-PLA(2) structures seems to be independent of their quaternary conformation. Cys29 polarization by Lys122 is not significant for BnSP-7 and BnSP-6 or other structures not bound by fatty acids. These structures may be in an "active" state when nothing is bound to them and the Lys122/Cys29 interactions are weak or absent.
About this Structure
1PC9 is a Single protein structure of sequence from Bothrops neuwiedi pauloensis. Full crystallographic information is available from OCA.
Reference
Crystal structures of BnSP-7 and BnSP-6, two Lys49-phospholipases A(2): quaternary structure and inhibition mechanism insights., Magro AJ, Soares AM, Giglio JR, Fontes MR, Biochem Biophys Res Commun. 2003 Nov 21;311(3):713-20. PMID:14623331
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