2sdf

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[[Image:2sdf.gif|left|200px]]
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{{STRUCTURE_2sdf| PDB=2sdf | SCENE= }}
{{STRUCTURE_2sdf| PDB=2sdf | SCENE= }}
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'''SOLUTION NMR STRUCTURE OF STROMAL CELL-DERIVED FACTOR-1 (SDF-1), 30 STRUCTURES'''
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===SOLUTION NMR STRUCTURE OF STROMAL CELL-DERIVED FACTOR-1 (SDF-1), 30 STRUCTURES===
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==Overview==
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The three-dimensional structure of stromal cell-derived factor-1 (SDF-1) was determined by NMR spectroscopy. SDF-1 is a monomer with a disordered N-terminal region (residues 1-8), and differs from other chemokines in the packing of the hydrophobic core and surface charge distribution. Results with analogs showed that the N-terminal eight residues formed an important receptor binding site; however, only Lys-1 and Pro-2 were directly involved in receptor activation. Modification to Lys-1 and/or Pro-2 resulted in loss of activity, but generated potent SDF-1 antagonists. Residues 12-17 of the loop region, which we term the RFFESH motif, unlike the N-terminal region, were well defined in the SDF-1 structure. The RFFESH formed a receptor binding site, which we propose to be an important initial docking site of SDF-1 with its receptor. The ability of the SDF-1 analogs to block HIV-1 entry via CXCR4, which is a HIV-1 coreceptor for the virus in addition to being the receptor for SDF-1, correlated with their affinity for CXCR4. Activation of the receptor is not required for HIV-1 inhibition.
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(as it appears on PubMed at http://www.pubmed.gov), where 9384579 is the PubMed ID number.
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{{ABSTRACT_PUBMED_9384579}}
==About this Structure==
==About this Structure==
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2SDF is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2SDF OCA].
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2SDF is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2SDF OCA].
==Reference==
==Reference==
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[[Category: Solution structure]]
[[Category: Solution structure]]
[[Category: Stromal cell-derived factor-1]]
[[Category: Stromal cell-derived factor-1]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 17:17:43 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 06:07:30 2008''

Revision as of 03:07, 28 July 2008

Image:2sdf.png

Template:STRUCTURE 2sdf

SOLUTION NMR STRUCTURE OF STROMAL CELL-DERIVED FACTOR-1 (SDF-1), 30 STRUCTURES

Template:ABSTRACT PUBMED 9384579

About this Structure

2SDF is a Single protein structure of sequence from Homo sapiens. Full experimental information is available from OCA.

Reference

Solution structure and basis for functional activity of stromal cell-derived factor-1; dissociation of CXCR4 activation from binding and inhibition of HIV-1., Crump MP, Gong JH, Loetscher P, Rajarathnam K, Amara A, Arenzana-Seisdedos F, Virelizier JL, Baggiolini M, Sykes BD, Clark-Lewis I, EMBO J. 1997 Dec 1;16(23):6996-7007. PMID:9384579

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