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3afk

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Revision as of 10:31, 27 September 2023

Crystal Structure of Agrocybe aegerita lectin AAL complexed with Thomsen-Friedenreich antigen

Structural highlights

3afk is a 2 chain structure with sequence from Cyclocybe aegerita. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.95Å
Ligands:	, , ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ATLE_CYCAE Anti-tumor lectin with DNase activity. Inhibits the growth of several tumor cell lines in vitro. Induces lymphocyte infiltration and necrosis of tumor cells in a mouse tumor model. Induces apoptosis in HeLa cells. Binds N-acetylneuraminyl lactose (N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->4)-beta-D-glucose) (PubMed:16051274).^[1] ^[2]

Publication Abstract from PubMed

Thomsen-Friedenreich (TF) antigen, which plays an important role in the regulation of cancer cell proliferation, occurs in approximately 90% of all human cancers and precancerous conditions. Although TF antigen has been known for almost 80 yr as a pancarcinoma antigen, the recognition mechanism between TF antigen and target protein has not been structurally characterized. A number of studies indicated that TF disaccharide is a potential ligand of the galactoside-binding galectins. In this work, we identified the TF antigen as a potential ligand of the antitumor galectin AAL (Agrocybe aegerita lectin) through glycan array analysis and reported the crystal structure of AAL complexed with the TF antigen. The structure provides a first look at the recognition mode between AAL and TF antigen, which is unique in a conservative (Glu-water-Arg-water) structural motif-based hydrogen bond network. Structure-based mutagenesis analysis further revealed the residues responsible for recognition specificity and binding affinity. Crystal structures of AAL complexed with two other TF-containing glycans showed that the unique TF recognition mode is kept intact, which may be commonly adopted in some cancer-related galectins. The finding provided the new target and approach for the antitumor drug design and relative strategy based on the AAL-TF recognition mode as a prototype model.

Structural insights into the recognition mechanism between an antitumor galectin AAL and the Thomsen-Friedenreich antigen.,Feng L, Sun H, Zhang Y, Li DF, Wang DC FASEB J. 2010 Oct;24(10):3861-8. Epub 2010 Jun 7. PMID:20530247^[3]

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

References

↑ Zhao C, Sun H, Tong X, Qi Y. An antitumour lectin from the edible mushroom Agrocybe aegerita. Biochem J. 2003 Sep 1;374(Pt 2):321-7. PMID:12757412 doi:10.1042/BJ20030300
↑ Ban M, Yoon HJ, Demirkan E, Utsumi S, Mikami B, Yagi F. Structural basis of a fungal galectin from Agrocybe cylindracea for recognizing sialoconjugate. J Mol Biol. 2005 Aug 26;351(4):695-706. PMID:16051274 doi:10.1016/j.jmb.2005.06.045
↑ Feng L, Sun H, Zhang Y, Li DF, Wang DC. Structural insights into the recognition mechanism between an antitumor galectin AAL and the Thomsen-Friedenreich antigen. FASEB J. 2010 Oct;24(10):3861-8. Epub 2010 Jun 7. PMID:20530247 doi:10.1096/fj.10-159111

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3afk"

Categories: Cyclocybe aegerita | Large Structures | Feng L | Li D | Wang D

@@ Line 3: / Line 3: @@
 <StructureSection load='3afk' size='340' side='right'caption='[[3afk]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3afk]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Agrae Agrae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3AFK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3AFK FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3afk]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Cyclocybe_aegerita Cyclocybe aegerita]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3AFK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3AFK FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=THR:THREONINE'>THR</scene>, <scene name='pdbligand=A2G:N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE'>A2G</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.95&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3m3c|3m3c]], [[3m3q|3m3q]], [[3m3e|3m3e]], [[3m3o|3m3o]]</div></td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A2G:N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE'>A2G</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=PRD_900084:Thomsen-Friedenreich+antigen'>PRD_900084</scene>, <scene name='pdbligand=THR:THREONINE'>THR</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">AAL ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5400 AGRAE])</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=3afk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3afk OCA], [https://pdbe.org/3afk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3afk RCSB], [https://www.ebi.ac.uk/pdbsum/3afk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3afk ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/ATLE_AGRAE ATLE_AGRAE]] Anti-tumor lectin with DNase activity. Inhibits the growth of several tumor cell lines in vitro. Induces lymphocyte infiltration and necrosis of tumor cells in a mouse tumor model. Induces apoptosis in HeLa cells.<ref>PMID:12757412</ref>
+[https://www.uniprot.org/uniprot/ATLE_CYCAE ATLE_CYCAE] Anti-tumor lectin with DNase activity. Inhibits the growth of several tumor cell lines in vitro. Induces lymphocyte infiltration and necrosis of tumor cells in a mouse tumor model. Induces apoptosis in HeLa cells. Binds N-acetylneuraminyl lactose (N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl-(1->4)-beta-D-glucose) (PubMed:16051274).<ref>PMID:12757412</ref> <ref>PMID:16051274</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 24: / Line 23: @@
 __TOC__
 </StructureSection>
-[[Category: Agrae]]
+[[Category: Cyclocybe aegerita]]
 [[Category: Large Structures]]
-[[Category: Feng, L]]
+[[Category: Feng L]]
-[[Category: Li, D]]
+[[Category: Li D]]
-[[Category: Wang, D]]
+[[Category: Wang D]]
-[[Category: 3-galnac-alpha-o-thr]]
-[[Category: Aal]]
-[[Category: Apoptosis]]
-[[Category: Gal-beta-1]]
-[[Category: Galectin]]
-[[Category: Hydrolase]]
-[[Category: Lectin]]
-[[Category: Nuclease]]
-[[Category: Thomsen-friedenreich antigen]]

3afk

From Proteopedia

Revision as of 10:31, 27 September 2023

Crystal Structure of Agrocybe aegerita lectin AAL complexed with Thomsen-Friedenreich antigen

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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