4yw6

From Proteopedia

(Difference between revisions)

Current revision

Structural Insight into Divalent Galactoside Binding to Pseudomonas aeruginosa lectin LecA

Structural highlights

4yw6 is a 4 chain structure with sequence from Pseudomonas aeruginosa. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.4Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PA1L_PSEAE D-galactose specific lectin. Binds in decreasing order of affinity: melibiose, methyl-alpha-D-galactoside, D-galactose, methyl-beta-D-galactoside, N-acetyl-D-galactosamine. Similar to plant lectins in its selective (carbohydrate-specific) hemagglutinating activity.

Publication Abstract from PubMed

Multivalent galactosides inhibiting Pseudomonas aeruginosa biofilms may help control this problematic pathogen. To understand the binding mode of tetravalent glycopeptide dendrimer GalAG2 [(Gal-beta-OC6H4CO-Lys-Pro-Leu)4(Lys-Phe-Lys-Ile)2Lys-His-Ile-NH2] to its target lectin LecA, crystal structures of LecA complexes with divalent analog GalAG1 [(Gal-beta-OC6H4CO-Lys-Pro-Leu)2Lys-Phe-Lys-Ile-NH2] and related glucose-triazole linked bis-galactosides 3u3 [Gal-beta-O(CH2)n-(C2HN3)-4-Glc-beta-(C2HN3)-[beta-Glc-4-(N3HC2)]2-(CH2)n-O-beta- Gal (n = 1)] and 5u3 (n = 3) were obtained, revealing a chelate bound 3u3, cross-linked 5u3, and monovalently bound GalAG1. Nevertheless, a chelate bound model better explaining their strong LecA binding and the absence of lectin aggregation was obtained by modeling for all three ligands. A model of the chelate bound GalAG2.LecA complex was also obtained rationalizing its unusually tight LecA binding (KD = 2.5 nM) and aggregation by lectin cross-linking. The very weak biofilm inhibition with divalent LecA inhibitors suggests that lectin aggregation is necessary for biofilm inhibition by GalAG2, pointing to multivalent glycoclusters as a unique opportunity to control P. aeruginosa biofilms.

Structural Insight into Multivalent Galactoside Binding to Pseudomonas aeruginosa Lectin LecA.,Visini R, Jin X, Bergmann M, Michaud G, Pertici F, Fu O, Pukin A, Branson TR, Thies-Weesie DM, Kemmink J, Gillon E, Imberty A, Stocker A, Darbre T, Pieters RJ, Reymond JL ACS Chem Biol. 2015 Aug 28. PMID:26295304^[1]

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

References

↑ Visini R, Jin X, Bergmann M, Michaud G, Pertici F, Fu O, Pukin A, Branson TR, Thies-Weesie DM, Kemmink J, Gillon E, Imberty A, Stocker A, Darbre T, Pieters RJ, Reymond JL. Structural Insight into Multivalent Galactoside Binding to Pseudomonas aeruginosa Lectin LecA. ACS Chem Biol. 2015 Aug 28. PMID:26295304 doi:http://dx.doi.org/10.1021/acschembio.5b00302

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4yw6"

@@ Line 1: / Line 1: @@
 ==Structural Insight into Divalent Galactoside Binding to Pseudomonas aeruginosa lectin LecA==
-<StructureSection load='4yw6' size='340' side='right' caption='[[4yw6]], [[Resolution|resolution]] 1.40&Aring;' scene=''>
+<StructureSection load='4yw6' size='340' side='right'caption='[[4yw6]], [[Resolution|resolution]] 1.40&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4yw6]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4YW6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4YW6 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4yw6]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4YW6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4YW6 FirstGlance]. <br>
-</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=G0P:N-[(2S)-6-AMINO-1-OXO-1-(PYRROLIDIN-1-YL)HEXAN-2-YL]-4-(BETA-D-GALACTOPYRANOSYLOXY)BENZAMIDE'>G0P</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]] 1.4&#8491;</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=4yw6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4yw6 OCA], [http://pdbe.org/4yw6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4yw6 RCSB], [http://www.ebi.ac.uk/pdbsum/4yw6 PDBsum]</span></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=G0P:N-[(2S)-6-AMINO-1-OXO-1-(PYRROLIDIN-1-YL)HEXAN-2-YL]-4-(BETA-D-GALACTOPYRANOSYLOXY)BENZAMIDE'>G0P</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=4yw6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4yw6 OCA], [https://pdbe.org/4yw6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4yw6 RCSB], [https://www.ebi.ac.uk/pdbsum/4yw6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4yw6 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/PA1L_PSEAE PA1L_PSEAE]] D-galactose specific lectin. Binds in decreasing order of affinity: melibiose, methyl-alpha-D-galactoside, D-galactose, methyl-beta-D-galactoside, N-acetyl-D-galactosamine. Similar to plant lectins in its selective (carbohydrate-specific) hemagglutinating activity.
+[https://www.uniprot.org/uniprot/PA1L_PSEAE PA1L_PSEAE] D-galactose specific lectin. Binds in decreasing order of affinity: melibiose, methyl-alpha-D-galactoside, D-galactose, methyl-beta-D-galactoside, N-acetyl-D-galactosamine. Similar to plant lectins in its selective (carbohydrate-specific) hemagglutinating activity.
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 17: / Line 19: @@
 </div>
 <div class="pdbe-citations 4yw6" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Galactose-binding lectin|Galactose-binding lectin]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Bergmann, M]]
+[[Category: Large Structures]]
-[[Category: Darbre, T]]
+[[Category: Pseudomonas aeruginosa]]
-[[Category: Gillon, E]]
+[[Category: Bergmann M]]
-[[Category: Imberty, A]]
+[[Category: Darbre T]]
-[[Category: Jin, X]]
+[[Category: Gillon E]]
-[[Category: Michaud, G]]
+[[Category: Imberty A]]
-[[Category: Pieters, R]]
+[[Category: Jin X]]
-[[Category: Reymond, J L]]
+[[Category: Michaud G]]
-[[Category: Stocker, A]]
+[[Category: Pieters R]]
-[[Category: Visini, R]]
+[[Category: Reymond J-L]]
-[[Category: Galactoside]]
+[[Category: Stocker A]]
-[[Category: Lectin]]
+[[Category: Visini R]]
-[[Category: Sugar binding protein]]

4yw6

From Proteopedia

Current revision

Structural Insight into Divalent Galactoside Binding to Pseudomonas aeruginosa lectin LecA

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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