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1ju8

From Proteopedia

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(New page: 200px<br /><applet load="1ju8" size="450" color="white" frame="true" align="right" spinBox="true" caption="1ju8" /> '''Solution structure of Leginsulin, a plant ho...)
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[[Image:1ju8.jpg|left|200px]]<br /><applet load="1ju8" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1ju8" />
 
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'''Solution structure of Leginsulin, a plant hormon'''<br />
 
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==Overview==
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==Solution structure of Leginsulin, a plant hormon==
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Previously, we isolated a 4-kDa peptide capable of binding to a 43-kDa, receptor-like protein and stimulating protein kinase activity of the, 43-kDa protein in soybean. Both of them were found to localize in the, plasma membranes and cell walls. Here, we report the physiological effects, of 4-kDa peptide expressed transiently in the cultured carrot and, bird's-foot trefoil cells transfected with pBI 121 plasmid containing the, 4-kDa peptide gene. At early developmental stage, the transgenic callus, grew rapidly compared to the wild callus in both species. Cell, proliferation of in vitro cultured nonembryogenic carrot callus was, apparently affected with the 4-kDa peptide in the medium. Complementary, DNAs encoding the 4-kDa peptide from mung bean and azuki bean were cloned, by PCR and sequenced. The amino-acid sequences deduced from the nucleotide, sequences are homologous among legume species, particularly, the sites of, cysteine residues are highly conserved. This conserved sequence reflects, the importance of intradisulfide bonds required for the 4-kDa peptide to, perform its function. Three dimensional structure of the 4-kDa peptide, determined by NMR spectroscopy suggests that this peptide is a T-knot, scaffold containing three beta-strands, and the specific binding activity, to the 43-kDa protein and stimulatory effect on the protein, phosphorylation could be attributed to the spatial arrangements of, hydrophobic residues at the solvent-exposed surface of two-stranded, beta-sheet of 4-kDa peptide. The importance of these residues for the, 4-kDa peptide to bind to the 43-kDa protein was indicated by site-directed, mutagenesis. These results suggest that the 4-kDa peptide is a, hormone-like peptide and the 43-kDa protein is involved in cellular signal, transduction of the peptide.
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<StructureSection load='1ju8' size='340' side='right'caption='[[1ju8]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1ju8]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Glycine_max Glycine max]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JU8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JU8 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=1ju8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ju8 OCA], [https://pdbe.org/1ju8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ju8 RCSB], [https://www.ebi.ac.uk/pdbsum/1ju8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ju8 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/ALB1_SOYBN ALB1_SOYBN] A1b binds to basic 7S globulin (BG) and stimulates its phosphorylation activity. Involved in the signal transduction system to regulate the growth and differentiation as a hormone peptide.
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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/ju/1ju8_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=1ju8 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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1JU8 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1JU8 OCA].
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*[[Insulin 3D Structures|Insulin 3D Structures]]
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__TOC__
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==Reference==
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</StructureSection>
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A possible physiological function and the tertiary structure of a 4-kDa peptide in legumes., Yamazaki T, Takaoka M, Katoh E, Hanada K, Sakita M, Sakata K, Nishiuchi Y, Hirano H, Eur J Biochem. 2003 Mar;270(6):1269-76. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12631285 12631285]
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[[Category: Glycine max]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Hanada, K.]]
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[[Category: Hanada K]]
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[[Category: Hirano, H.]]
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[[Category: Hirano H]]
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[[Category: Katoh, E.]]
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[[Category: Katoh E]]
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[[Category: Nishiuchi, Y.]]
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[[Category: Nishiuchi Y]]
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[[Category: Sakata, K.]]
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[[Category: Sakata K]]
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[[Category: Sakita, M.]]
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[[Category: Sakita M]]
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[[Category: Takaoka, M.]]
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[[Category: Takaoka M]]
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[[Category: Yamazaki, T.]]
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[[Category: Yamazaki T]]
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[[Category: t-knot]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 18:34:53 2007''
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Current revision

Solution structure of Leginsulin, a plant hormon

PDB ID 1ju8

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