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2iln

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Revision as of 21:34, 11 September 2015

Crystal structure of the Bowman-Birk inhibitor from snail medic seeds in complex with bovine trypsin

Structural highlights

2iln is a 3 chain structure with sequence from Bos taurus and Medicago scutellata. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1mvz
Activity:	Trypsin, with EC number 3.4.21.4
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[IBB_MEDSC] Inhibits trypsin but not chymotrypsin. Inhibits the trypsin-like proteinase activity present in larvae of the crop pests Adoxophyes orana, Hyphantria cunea, Lobesia botrana and Ostrinia nubilalis.^[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The structure of the ternary complex of the anticarcinogenic Bowman-Birk protease inhibitor purified from snail medic (Medicago scutellata) seeds (MSTI) and two molecules of bovine trypsin has been solved by X-ray diffraction analysis of single crystals to a resolution of 2.0 A. This is the highest resolution model of a ternary complex of this type currently available. The two binding loops of the MSTI differ in only one amino acid and have in both cases an arginine in position P1. The distances between the residues of the inhibitor at the binding interface and the trypsin side chains that recognize them are almost identical in the two sites. When compared to the NMR model of the uncomplexed MSTI, the inhibitor in the functional assembly with trypsin shows the largest differences in the two P2' residues. Compared with the similar ternary complex of the soybean trypsin inhibitor, this model shows very small differences in the polypeptide chain of the trypsin binding sites and its largest difference in the area between Asp 26 and His 32 of the MSTI which in the soybean inhibitor has an extra Leu inserted in position 29.

Crystal structure of the anticarcinogenic Bowman-Birk inhibitor from snail medic (Medicago scutellata) seeds complexed with bovine trypsin.,Capaldi S, Perduca M, Faggion B, Carrizo ME, Tava A, Ragona L, Monaco HL J Struct Biol. 2007 Apr;158(1):71-9. Epub 2006 Oct 26. PMID:17142058^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Ceciliani F, Tava A, Iori R, Mortarino M, Odoardi M, Ronchi S. A trypsin inhibitor from snail medic seeds active against pest proteases. Phytochemistry. 1997 Feb;44(3):393-8. PMID:9014368
↑ Capaldi S, Perduca M, Faggion B, Carrizo ME, Tava A, Ragona L, Monaco HL. Crystal structure of the anticarcinogenic Bowman-Birk inhibitor from snail medic (Medicago scutellata) seeds complexed with bovine trypsin. J Struct Biol. 2007 Apr;158(1):71-9. Epub 2006 Oct 26. PMID:17142058 doi:10.1016/j.jsb.2006.10.017

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2iln"

@@ Line 5: / Line 5: @@
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1mvz|1mvz]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Trypsin Trypsin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.4 3.4.21.4] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2iln FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2iln OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2iln RCSB], [http://www.ebi.ac.uk/pdbsum/2iln PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2iln FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2iln OCA], [http://pdbe.org/2iln PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2iln RCSB], [http://www.ebi.ac.uk/pdbsum/2iln PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 27: / Line 27: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2iln" style="background-color:#fffaf0;"></div>
 ==See Also==

2iln

From Proteopedia

Revision as of 21:34, 11 September 2015

Crystal structure of the Bowman-Birk inhibitor from snail medic seeds in complex with bovine trypsin

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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