1qsv
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
+ | |DOMAIN= | ||
+ | |RELATEDENTRY=[[1flt|1FLT]], [[1qsz|1QSZ]] | ||
+ | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1qsv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qsv OCA], [http://www.ebi.ac.uk/pdbsum/1qsv PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1qsv RCSB]</span> | ||
}} | }} | ||
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==Overview== | ==Overview== | ||
The extracellular portion of the VEGF and PlGF receptor, Flt-1 (or VEGFR-1), consists of seven immunoglobulin-like domains. The second domain from the N terminus (Flt-1D2) is necessary and sufficient for high affinity VEGF binding. The 1.7 A resolution crystal structure of Flt-1D2 bound to VEGF revealed that this domain is a member of the I-set of the immunoglobulin superfamily, but has several unusual features including a region near the N terminus that bulges away from the domain rather than pairing with the neighboring beta-strand. Some of the residues in this region make contact with VEGF, raising the possibility that this bulge could be a consequence of VEGF binding and might not be present in the absence of ligand. Here we report the three-dimensional structure of Flt-1D2 in its uncomplexed form determined by NMR spectroscopy. A semi-automated method for NOE assignment that takes advantage of the previously solved crystal structure was used to facilitate rapid analysis of the 3D NOESY spectra. The solution structure is very similar to the previously reported VEGF-bound crystal structure; the N-terminal bulge is present, albeit in a different conformation. We also report the 2.7 A crystal structure of Flt-1D2 in complex with VEGF solved in a different crystal form that reveals yet another conformation for the N-terminal bulge region. (1)H-(15)N heteronuclear NOEs indicate this region is flexible in solution; the crystal structures show that this region is able to adopt more than one conformation even when bound to VEGF. Thus, VEGF-binding is not accompanied by significant structural change in Flt-1D2, and the unusual structural features of Flt-1D2 are an intrinsic property of this domain. | The extracellular portion of the VEGF and PlGF receptor, Flt-1 (or VEGFR-1), consists of seven immunoglobulin-like domains. The second domain from the N terminus (Flt-1D2) is necessary and sufficient for high affinity VEGF binding. The 1.7 A resolution crystal structure of Flt-1D2 bound to VEGF revealed that this domain is a member of the I-set of the immunoglobulin superfamily, but has several unusual features including a region near the N terminus that bulges away from the domain rather than pairing with the neighboring beta-strand. Some of the residues in this region make contact with VEGF, raising the possibility that this bulge could be a consequence of VEGF binding and might not be present in the absence of ligand. Here we report the three-dimensional structure of Flt-1D2 in its uncomplexed form determined by NMR spectroscopy. A semi-automated method for NOE assignment that takes advantage of the previously solved crystal structure was used to facilitate rapid analysis of the 3D NOESY spectra. The solution structure is very similar to the previously reported VEGF-bound crystal structure; the N-terminal bulge is present, albeit in a different conformation. We also report the 2.7 A crystal structure of Flt-1D2 in complex with VEGF solved in a different crystal form that reveals yet another conformation for the N-terminal bulge region. (1)H-(15)N heteronuclear NOEs indicate this region is flexible in solution; the crystal structures show that this region is able to adopt more than one conformation even when bound to VEGF. Thus, VEGF-binding is not accompanied by significant structural change in Flt-1D2, and the unusual structural features of Flt-1D2 are an intrinsic property of this domain. | ||
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- | ==Disease== | ||
- | Known diseases associated with this structure: Fanconi renotubular syndrome OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=134600 134600]], Jackson-Weiss syndrome OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=136350 136350]], Kallmann syndrome 2 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=136350 136350]], Pfeiffer syndrome OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=136350 136350]] | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: vegf receptor]] | [[Category: vegf receptor]] | ||
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:18:31 2008'' |
Revision as of 20:18, 30 March 2008
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Related: | 1FLT, 1QSZ
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Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
Coordinates: | save as pdb, mmCIF, xml |
THE VEGF-BINDING DOMAIN OF FLT-1, 20 NMR STRUCTURES
Overview
The extracellular portion of the VEGF and PlGF receptor, Flt-1 (or VEGFR-1), consists of seven immunoglobulin-like domains. The second domain from the N terminus (Flt-1D2) is necessary and sufficient for high affinity VEGF binding. The 1.7 A resolution crystal structure of Flt-1D2 bound to VEGF revealed that this domain is a member of the I-set of the immunoglobulin superfamily, but has several unusual features including a region near the N terminus that bulges away from the domain rather than pairing with the neighboring beta-strand. Some of the residues in this region make contact with VEGF, raising the possibility that this bulge could be a consequence of VEGF binding and might not be present in the absence of ligand. Here we report the three-dimensional structure of Flt-1D2 in its uncomplexed form determined by NMR spectroscopy. A semi-automated method for NOE assignment that takes advantage of the previously solved crystal structure was used to facilitate rapid analysis of the 3D NOESY spectra. The solution structure is very similar to the previously reported VEGF-bound crystal structure; the N-terminal bulge is present, albeit in a different conformation. We also report the 2.7 A crystal structure of Flt-1D2 in complex with VEGF solved in a different crystal form that reveals yet another conformation for the N-terminal bulge region. (1)H-(15)N heteronuclear NOEs indicate this region is flexible in solution; the crystal structures show that this region is able to adopt more than one conformation even when bound to VEGF. Thus, VEGF-binding is not accompanied by significant structural change in Flt-1D2, and the unusual structural features of Flt-1D2 are an intrinsic property of this domain.
About this Structure
1QSV is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Solution structure of the VEGF-binding domain of Flt-1: comparison of its free and bound states., Starovasnik MA, Christinger HW, Wiesmann C, Champe MA, de Vos AM, Skelton NJ, J Mol Biol. 1999 Oct 29;293(3):531-44. PMID:10543948
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