1scf

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{{STRUCTURE_1scf| PDB=1scf | SCENE= }}
{{STRUCTURE_1scf| PDB=1scf | SCENE= }}
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'''HUMAN RECOMBINANT STEM CELL FACTOR'''
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===HUMAN RECOMBINANT STEM CELL FACTOR===
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==Overview==
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Stem cell factor (SCF) is an early-acting hematopoietic cytokine that elicits multiple biological effects. SCF is dimeric and occurs in soluble and membrane-bound forms. It transduces signals by ligand- mediated dimerization of its receptor, Kit, which is a receptor tyrosine kinase related to the receptors for platelet-derived growth factor (PDGF), macrophage colony-stimulating factor, Flt-3 ligand and vascular endothelial growth factor (VEGF). All of these have extracellular ligand-binding portions composed of immunoglobulin-like repeats. We have determined the crystal structure of selenomethionyl soluble human SCF at 2.2 A resolution by multiwavelength anomalous diffraction phasing. SCF has the characteristic helical cytokine topology, but the structure is unique apart from core portions. The SCF dimer has a symmetric 'head-to-head' association. Using various prior observations, we have located potential Kit-binding sites on the SCF dimer. A superimposition of this dimer onto VEGF in its complex with the receptor Flt-1 places the binding sites on SCF in positions of topographical and electrostatic complementarity with the Kit counterparts of Flt-1, and a similar model can be made for the complex of PDGF with its receptor.
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(as it appears on PubMed at http://www.pubmed.gov), where 10880433 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10880433}}
==About this Structure==
==About this Structure==
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[[Category: Mast cell growth factor]]
[[Category: Mast cell growth factor]]
[[Category: Steel factor]]
[[Category: Steel factor]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 08:32:35 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 20:06:41 2008''

Revision as of 17:06, 27 July 2008

Image:1scf.png

Template:STRUCTURE 1scf

HUMAN RECOMBINANT STEM CELL FACTOR

Template:ABSTRACT PUBMED 10880433

About this Structure

1SCF is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structure of the active core of human stem cell factor and analysis of binding to its receptor kit., Jiang X, Gurel O, Mendiaz EA, Stearns GW, Clogston CL, Lu HS, Osslund TD, Syed RS, Langley KE, Hendrickson WA, EMBO J. 2000 Jul 3;19(13):3192-203. PMID:10880433

Page seeded by OCA on Sun Jul 27 20:06:41 2008

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