3wcs: Difference between revisions
No edit summary |
No edit summary |
||
| Line 4: | Line 4: | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3wcs]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WCS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WCS FirstGlance]. <br> | <table><tr><td colspan='2'>[[3wcs]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Phaseolus_vulgaris Phaseolus vulgaris]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WCS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3WCS FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand= | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.75Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3wcs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wcs OCA], [https://pdbe.org/3wcs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wcs RCSB], [https://www.ebi.ac.uk/pdbsum/3wcs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wcs ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3wcs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wcs OCA], [https://pdbe.org/3wcs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3wcs RCSB], [https://www.ebi.ac.uk/pdbsum/3wcs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3wcs ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/PHAE_PHAVU PHAE_PHAVU] This insecticidal carbohydrate-binding lectin is toxic for the cowpea weevil. | |||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
| Line 26: | Line 28: | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Phaseolus vulgaris]] | [[Category: Phaseolus vulgaris]] | ||
[[Category: Nagae | [[Category: Nagae M]] | ||
[[Category: Yamaguchi | [[Category: Yamaguchi Y]] | ||
Latest revision as of 16:04, 8 November 2023
Crystal structure of plant lectin (ligand-bound form)Crystal structure of plant lectin (ligand-bound form)
Structural highlights
FunctionPHAE_PHAVU This insecticidal carbohydrate-binding lectin is toxic for the cowpea weevil. Publication Abstract from PubMedPhytohemagglutinin from Phaseolus vulgaris (PHA-E), a legume lectin, has an unusual specificity toward biantennary galactosylated N-glycan with bisecting N-acetylglucosamine (GlcNAc). To investigate the interaction in detail, we have solved the crystal structures of PHA-E without ligand and in complex with biantennary N-glycan derivatives. PHA-E interacts with the trisaccharide unit (Galbeta1-4GlcNAcbeta1-2Man) in a manner completely different from that of mannose/glucose-specific legume lectins. The inner mannose residue binds to a novel site on the protein, and its rotation is opposite to that occurring in the monosaccharide-binding site of other lectins around the sugar O3 axis. Saturation-transfer difference NMR using biantennary di-galactosylated and bisected glycans reveals that PHA-E interacts with both antennas almost equally. The unique carbohydrate interaction explains the glycan-binding specificity and high affinity. Phytohemagglutinin from Phaseolus vulgaris (PHA-E) displays a novel glycan recognition mode using a common legume lectin fold.,Nagae M, Soga K, Morita-Matsumoto K, Hanashima S, Ikeda A, Yamamoto K, Yamaguchi Y Glycobiology. 2014 Apr;24(4):368-78. doi: 10.1093/glycob/cwu004. Epub 2014 Jan, 16. PMID:24436051[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
|
| ||||||||||||||||||