3bdy

From Proteopedia

(Difference between revisions)

Revision as of 08:00, 25 October 2017

Dual specific bH1 Fab in complex with VEGF

Structural highlights

3bdy is a 3 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	3be1
Gene:	VEGF, VEGFA (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[VEGFA_HUMAN] Defects in VEGFA are a cause of susceptibility to microvascular complications of diabetes type 1 (MVCD1) [MIM:603933]. These are pathological conditions that develop in numerous tissues and organs as a consequence of diabetes mellitus. They include diabetic retinopathy, diabetic nephropathy leading to end-stage renal disease, and diabetic neuropathy. Diabetic retinopathy remains the major cause of new-onset blindness among diabetic adults. It is characterized by vascular permeability and increased tissue ischemia and angiogenesis.

Function

[VEGFA_HUMAN] Growth factor active in angiogenesis, vasculogenesis and endothelial cell growth. Induces endothelial cell proliferation, promotes cell migration, inhibits apoptosis and induces permeabilization of blood vessels. Binds to the FLT1/VEGFR1 and KDR/VEGFR2 receptors, heparan sulfate and heparin. NRP1/Neuropilin-1 binds isoforms VEGF-165 and VEGF-145. Isoform VEGF165B binds to KDR but does not activate downstream signaling pathways, does not activate angiogenesis and inhibits tumor growth.^[1] ^[2] ^[3]

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

The interface between antibody and antigen is often depicted as a lock and key, suggesting that an antibody surface can accommodate only one antigen. Here, we describe an antibody with an antigen binding site that binds two distinct proteins with high affinity. We isolated a variant of Herceptin, a therapeutic monoclonal antibody that binds the human epidermal growth factor receptor 2 (HER2), on the basis of its ability to simultaneously interact with vascular endothelial growth factor (VEGF). Crystallographic and mutagenesis studies revealed that distinct amino acids of this antibody, called bH1, engage HER2 and VEGF energetically, but there is extensive overlap between the antibody surface areas contacting the two antigens. An affinity-improved version of bH1 inhibits both HER2- and VEGF-mediated cell proliferation in vitro and tumor progression in mouse models. Such "two-in-one" antibodies challenge the monoclonal antibody paradigm of one binding site, one antigen. They could also provide new opportunities for antibody-based therapy.

Variants of the antibody herceptin that interact with HER2 and VEGF at the antigen binding site.,Bostrom J, Yu SF, Kan D, Appleton BA, Lee CV, Billeci K, Man W, Peale F, Ross S, Wiesmann C, Fuh G Science. 2009 Mar 20;323(5921):1610-4. PMID:19299620^[4]

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

References

↑ Murphy JF, Fitzgerald DJ. Vascular endothelial growth factor induces cyclooxygenase-dependent proliferation of endothelial cells via the VEGF-2 receptor. FASEB J. 2001 Jul;15(9):1667-9. PMID:11427521
↑ Woolard J, Wang WY, Bevan HS, Qiu Y, Morbidelli L, Pritchard-Jones RO, Cui TG, Sugiono M, Waine E, Perrin R, Foster R, Digby-Bell J, Shields JD, Whittles CE, Mushens RE, Gillatt DA, Ziche M, Harper SJ, Bates DO. VEGF165b, an inhibitory vascular endothelial growth factor splice variant: mechanism of action, in vivo effect on angiogenesis and endogenous protein expression. Cancer Res. 2004 Nov 1;64(21):7822-35. PMID:15520188 doi:10.1158/0008-5472.CAN-04-0934
↑ Dixelius J, Olsson AK, Thulin A, Lee C, Johansson I, Claesson-Welsh L. Minimal active domain and mechanism of action of the angiogenesis inhibitor histidine-rich glycoprotein. Cancer Res. 2006 Feb 15;66(4):2089-97. PMID:16489009 doi:10.1158/0008-5472.CAN-05-2217
↑ Bostrom J, Yu SF, Kan D, Appleton BA, Lee CV, Billeci K, Man W, Peale F, Ross S, Wiesmann C, Fuh G. Variants of the antibody herceptin that interact with HER2 and VEGF at the antigen binding site. Science. 2009 Mar 20;323(5921):1610-4. PMID:19299620 doi:323/5921/1610

1 Structural highlights
2 Disease
3 Function
4 Evolutionary Conservation
5 Publication Abstract from PubMed
6 See Also
7 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 1: / Line 1: @@
 ==Dual specific bH1 Fab in complex with VEGF==
 <StructureSection load='3bdy' size='340' side='right' caption='[[3bdy]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3be1|3be1]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">VEGF, VEGFA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=3bdy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3bdy OCA], [http://pdbe.org/3bdy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3bdy RCSB], [http://www.ebi.ac.uk/pdbsum/3bdy 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=3bdy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3bdy OCA], [http://pdbe.org/3bdy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3bdy RCSB], [http://www.ebi.ac.uk/pdbsum/3bdy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3bdy ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 33: / Line 34: @@
 ==See Also==
-*[[Antibody|Antibody]]
+*[[3D structures of antibody|3D structures of antibody]]
-*[[Vascular Endothelial Growth Factor|Vascular Endothelial Growth Factor]]
 == References ==
 <references/>

3bdy

From Proteopedia

Revision as of 08:00, 25 October 2017

Dual specific bH1 Fab in complex with VEGF

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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