2p2k

From Proteopedia

(Difference between revisions)

Revision as of 04:13, 10 September 2015

Crystal structure of a lectin from Canavalia gladiata seeds (CGL) in complex with man1-4man-OMe

Structural highlights

2p2k is a 4 chain structure with sequence from Canavalia gladiata. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
Related:	2ovu, 2ow4
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[CONA_CANGL] Glucose/D-mannose/rhamnose specific lectin. Has hemagglutinating activity towards rabbit erythrocytes. Has mitogenic activity towards murine splenocytes that is inhibited by glucose. Inhibits HIV-1 reverse transcriptase with an IC(50) of 35uM. Has a potent antiproliferative activity against L1210 leukemia cells in vitro that is not inhibited by glucose. Inhibits translation in cell-free rabbit reticulocyte system with an IC(50) of 2.08uM. Lacks anti-fungal activity against M.arachidicola, B.cenera and F.oxysporum.^[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

Plant lectins, especially those purified from species of the Leguminosae family, represent the best studied group of carbohydrate-binding proteins. The legume lectins from Diocleinae subtribe are highly similar proteins that present significant differences in the potency/efficacy of their biological activities. The structural studies of the interactions between lectins and sugars may clarify the origin of the distinct biological activities observed in this high similar class of proteins. In this way, this work presents a crystallographic study of the ConM and CGL (agglutinins from Canavalia maritima and Canavalia gladiata, respectively) in the following complexes: ConM/CGL:Man(alpha1-2)Man(alpha1-O)Me, ConM/CGL:Man(alpha1-3)Man(alpha1-O)Me and ConM/CGL:Man(alpha1-4)Man(alpha1-O)Me, which crystallized in different conditions and space group from the native proteins. The structures were solved by molecular replacement, presenting satisfactory values for R(factor) and R(free). Comparisons between ConM, CGL and ConA (Canavalia ensiformis lectin) binding mode with the dimannosides in subject, presented different interactions patterns, which may account for a structural explanation of the distincts biological properties observed in the lectins of Diocleinae subtribe.

Structural analysis of Canavalia maritima and Canavalia gladiata lectins complexed with different dimannosides: new insights into the understanding of the structure-biological activity relationship in legume lectins.,Bezerra GA, Oliveira TM, Moreno FB, de Souza EP, da Rocha BA, Benevides RG, Delatorre P, de Azevedo WF Jr, Cavada BS J Struct Biol. 2007 Nov;160(2):168-76. Epub 2007 Aug 16. PMID:17881248^[2]

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

References

↑ Wong JH, Ng TB. Isolation and characterization of a glucose/mannose/rhamnose-specific lectin from the knife bean Canavalia gladiata. Arch Biochem Biophys. 2005 Jul 1;439(1):91-8. PMID:15935326 doi:http://dx.doi.org/S0003-9861(05)00186-4
↑ Bezerra GA, Oliveira TM, Moreno FB, de Souza EP, da Rocha BA, Benevides RG, Delatorre P, de Azevedo WF Jr, Cavada BS. Structural analysis of Canavalia maritima and Canavalia gladiata lectins complexed with different dimannosides: new insights into the understanding of the structure-biological activity relationship in legume lectins. J Struct Biol. 2007 Nov;160(2):168-76. Epub 2007 Aug 16. PMID:17881248 doi:http://dx.doi.org/10.1016/j.jsb.2007.07.012

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/2p2k"

@@ Line 5: / Line 5: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=MMA:O1-METHYL-MANNOSE'>MMA</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2ovu|2ovu]], [[2ow4|2ow4]]</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=2p2k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p2k OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2p2k RCSB], [http://www.ebi.ac.uk/pdbsum/2p2k 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=2p2k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p2k OCA], [http://pdbe.org/2p2k PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2p2k RCSB], [http://www.ebi.ac.uk/pdbsum/2p2k 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 2p2k" style="background-color:#fffaf0;"></div>
 ==See Also==

2p2k

From Proteopedia

Revision as of 04:13, 10 September 2015

Crystal structure of a lectin from Canavalia gladiata seeds (CGL) in complex with man1-4man-OMe

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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