This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

2wbw

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 08:09, 24 December 2014

Ad37 fibre head in complex with CAR D1 and sialic acid

Structural highlights

2wbw is a 2 chain structure with sequence from Homo sapiens and Human adenovirus 37. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	2w9l, 2j12, 1eaj, 1p69, 1jew, 1kac, 1rsf, 1p6a, 1f5w, 2j1k, 2wbv
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[CXAR_HUMAN] Component of the epithelial apical junction complex that is essential for the tight junction integrity. Proposed to function as a homophilic cell adhesion molecule. Recruits MPDZ to intercellular contact sites. Probably involved in transepithelial migration of polymorphonuclear leukocytes (PMN) through adhesive interactions with AMICA1/JAML located in the plasma membrane of PMN.^[1] ^[2] ^[3] ^[4]

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

Although it has been known for 50 years that adenoviruses (Ads) interact with erythrocytes ex vivo, the molecular and structural basis for this interaction, which has been serendipitously exploited for diagnostic tests, is unknown. In this study, we characterized the interaction between erythrocytes and unrelated Ad serotypes, human 5 (HAd5) and 37 (HAd37), and canine 2 (CAV-2). While these serotypes agglutinate human erythrocytes, they use different receptors, have different tropisms and/or infect different species. Using molecular, biochemical, structural and transgenic animal-based analyses, we found that the primary erythrocyte interaction domain for HAd37 is its sialic acid binding site, while CAV-2 binding depends on at least three factors: electrostatic interactions, sialic acid binding and, unexpectedly, binding to the coxsackievirus and adenovirus receptor (CAR) on human erythrocytes. We show that the presence of CAR on erythrocytes leads to prolonged in vivo blood half-life and significantly reduced liver infection when a CAR-tropic Ad is injected intravenously. This study provides i) a molecular and structural rationale for Ad-erythrocyte interactions, ii) a basis to improve vector-mediated gene transfer and iii) a mechanism that may explain the biodistribution and pathogenic inconsistencies found between human and animal models.

The cell adhesion molecule "CAR" and sialic acid on human erythrocytes influence adenovirus in vivo biodistribution.,Seiradake E, Henaff D, Wodrich H, Billet O, Perreau M, Hippert C, Mennechet F, Schoehn G, Lortat-Jacob H, Dreja H, Ibanes S, Kalatzis V, Wang JP, Finberg RW, Cusack S, Kremer EJ PLoS Pathog. 2009 Jan;5(1):e1000277. Epub 2009 Jan 2. PMID:19119424^[5]

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

References

↑ Tomko RP, Xu R, Philipson L. HCAR and MCAR: the human and mouse cellular receptors for subgroup C adenoviruses and group B coxsackieviruses. Proc Natl Acad Sci U S A. 1997 Apr 1;94(7):3352-6. PMID:9096397
↑ Cohen CJ, Shieh JT, Pickles RJ, Okegawa T, Hsieh JT, Bergelson JM. The coxsackievirus and adenovirus receptor is a transmembrane component of the tight junction. Proc Natl Acad Sci U S A. 2001 Dec 18;98(26):15191-6. Epub 2001 Dec 4. PMID:11734628 doi:10.1073/pnas.261452898
↑ Walters RW, Freimuth P, Moninger TO, Ganske I, Zabner J, Welsh MJ. Adenovirus fiber disrupts CAR-mediated intercellular adhesion allowing virus escape. Cell. 2002 Sep 20;110(6):789-99. PMID:12297051
↑ Zen K, Liu Y, McCall IC, Wu T, Lee W, Babbin BA, Nusrat A, Parkos CA. Neutrophil migration across tight junctions is mediated by adhesive interactions between epithelial coxsackie and adenovirus receptor and a junctional adhesion molecule-like protein on neutrophils. Mol Biol Cell. 2005 Jun;16(6):2694-703. Epub 2005 Mar 30. PMID:15800062 doi:E05-01-0036
↑ Seiradake E, Henaff D, Wodrich H, Billet O, Perreau M, Hippert C, Mennechet F, Schoehn G, Lortat-Jacob H, Dreja H, Ibanes S, Kalatzis V, Wang JP, Finberg RW, Cusack S, Kremer EJ. The cell adhesion molecule "CAR" and sialic acid on human erythrocytes influence adenovirus in vivo biodistribution. PLoS Pathog. 2009 Jan;5(1):e1000277. Epub 2009 Jan 2. PMID:19119424 doi:10.1371/journal.ppat.1000277

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 7: / Line 7: @@
 <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=2wbw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2wbw OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2wbw RCSB], [http://www.ebi.ac.uk/pdbsum/2wbw PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/CXAR_HUMAN CXAR_HUMAN]] Component of the epithelial apical junction complex that is essential for the tight junction integrity. Proposed to function as a homophilic cell adhesion molecule. Recruits MPDZ to intercellular contact sites. Probably involved in transepithelial migration of polymorphonuclear leukocytes (PMN) through adhesive interactions with AMICA1/JAML located in the plasma membrane of PMN.<ref>PMID:9096397</ref> <ref>PMID:11734628</ref> <ref>PMID:12297051</ref> <ref>PMID:15800062</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 31: / Line 33: @@
 [[Category: Homo sapiens]]
 [[Category: Human adenovirus 37]]
-[[Category: Billet, O.]]
+[[Category: Billet, O]]
-[[Category: Cusack, S.]]
+[[Category: Cusack, S]]
-[[Category: Dreja, H.]]
+[[Category: Dreja, H]]
-[[Category: Finberg, R W.]]
+[[Category: Finberg, R W]]
-[[Category: Henaff, D.]]
+[[Category: Henaff, D]]
-[[Category: Hippert, C.]]
+[[Category: Hippert, C]]
-[[Category: Ibanes, S.]]
+[[Category: Ibanes, S]]
-[[Category: Kalatzis, V.]]
+[[Category: Kalatzis, V]]
-[[Category: Kremer, E J.]]
+[[Category: Kremer, E J]]
-[[Category: Lortat-Jacob, H.]]
+[[Category: Lortat-Jacob, H]]
-[[Category: Mennechet, F.]]
+[[Category: Mennechet, F]]
-[[Category: Perreau, M.]]
+[[Category: Perreau, M]]
-[[Category: Schoehn, G.]]
+[[Category: Schoehn, G]]
-[[Category: Seiradake, E.]]
+[[Category: Seiradake, E]]
-[[Category: Wang, J P.]]
+[[Category: Wang, J P]]
-[[Category: Wodrich, H.]]
+[[Category: Wodrich, H]]
 [[Category: Ad37]]
 [[Category: Adenovirus]]

2wbw

From Proteopedia

Revision as of 08:09, 24 December 2014

Ad37 fibre head in complex with CAR D1 and sialic acid

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox