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1rod

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(New page: 200px<br /><applet load="1rod" size="450" color="white" frame="true" align="right" spinBox="true" caption="1rod" /> '''CHIMERIC PROTEIN OF INTERLEUKIN 8 AND HUMAN ...)
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[[Image:1rod.gif|left|200px]]<br /><applet load="1rod" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1rod" />
 
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'''CHIMERIC PROTEIN OF INTERLEUKIN 8 AND HUMAN MELANOMA GROWTH STIMULATING ACTIVITY PROTEIN, NMR'''<br />
 
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==Overview==
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==CHIMERIC PROTEIN OF INTERLEUKIN 8 AND HUMAN MELANOMA GROWTH STIMULATING ACTIVITY PROTEIN, NMR==
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A 72-amino-acid chimeric protein, Chi1, was constructed from the, N-terminal part of interleukin 8, IL-8-(1-53), and the C-terminal part of, melanoma growth stimulatory activity, MGSA-(54-72). Chi1 protein showed, receptor-binding specificity and biological activity similar, but not, identical to IL-8 and decidedly different from MGSA. The structure of Chi1, was determined in solution by two-dimensional NMR and molecular-dynamics, calculations. The structure resembled the structures of MGSA and IL-8, closely, containing a triple-stranded beta-sheet in the IL-8 part and an, amphipathic alpha-helix in the MGSA part. Chi1 formed dimers at millimolar, concentrations via the first strand from the N-terminus, analogous to IL-8, and MGSA. In contrast to the latter molecules, however, the alpha-helix of, Chi1 did not pack against the beta-sheet part, but was an independent, structural element. This structural difference could be explained mainly, by the modulation of hydrophobic interactions between the helix and the, rest of the protein in Chi1 as compared to IL-8 and MGSA. It is concluded, that tight helix packing is not required for receptor binding and, biological activity of Chi1.
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<StructureSection load='1rod' size='340' side='right'caption='[[1rod]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1rod]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ROD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ROD FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1rod FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rod OCA], [https://pdbe.org/1rod PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1rod RCSB], [https://www.ebi.ac.uk/pdbsum/1rod PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1rod ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/IL8_HUMAN IL8_HUMAN] IL-8 is a chemotactic factor that attracts neutrophils, basophils, and T-cells, but not monocytes. It is also involved in neutrophil activation. It is released from several cell types in response to an inflammatory stimulus. IL-8(6-77) has a 5-10-fold higher activity on neutrophil activation, IL-8(5-77) has increased activity on neutrophil activation and IL-8(7-77) has a higher affinity to receptors CXCR1 and CXCR2 as compared to IL-8(1-77), respectively.<ref>PMID:2145175</ref> <ref>PMID:2212672</ref> <ref>PMID:11978786</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ro/1rod_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1rod ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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1ROD is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1ROD OCA].
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*[[Interleukin 3D structures|Interleukin 3D structures]]
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== References ==
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==Reference==
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<references/>
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Structure and activity of a chimeric interleukin-8-melanoma-growth-stimulatory-activity protein., Sticht H, Auer M, Schmitt B, Besemer J, Horcher M, Kirsch T, Lindley IJ, Rosch P, Eur J Biochem. 1996 Jan 15;235(1-2):26-35. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8631339 8631339]
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Protein complex]]
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[[Category: Large Structures]]
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[[Category: Auer, M.]]
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[[Category: Auer M]]
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[[Category: Besemer, J.]]
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[[Category: Besemer J]]
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[[Category: Horcher, M.]]
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[[Category: Horcher M]]
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[[Category: Kirsch, T.]]
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[[Category: Kirsch T]]
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[[Category: Lindley, I.J.D.]]
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[[Category: Lindley IJD]]
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[[Category: Roesch, P.]]
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[[Category: Roesch P]]
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[[Category: Schmitt, B.]]
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[[Category: Schmitt B]]
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[[Category: Sticht, H.]]
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[[Category: Sticht H]]
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[[Category: chemokine]]
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[[Category: chemotaxis]]
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[[Category: cytokine]]
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[[Category: inflammatory response]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 01:45:03 2007''
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Current revision

CHIMERIC PROTEIN OF INTERLEUKIN 8 AND HUMAN MELANOMA GROWTH STIMULATING ACTIVITY PROTEIN, NMR

PDB ID 1rod

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