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| | ==Solution Structure of Dimeric SAM Domain from MAPKKK Ste11== | | ==Solution Structure of Dimeric SAM Domain from MAPKKK Ste11== |
| - | <StructureSection load='1x9x' size='340' side='right' caption='[[1x9x]], [[NMR_Ensembles_of_Models | 8 NMR models]]' scene=''> | + | <StructureSection load='1x9x' size='340' side='right'caption='[[1x9x]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1x9x]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X9X OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1X9X FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1x9x]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X9X OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1X9X FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">STE11 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Transferase Transferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1, 2.7.11.8, 2.7.11.9, 2.7.11.10, 2.7.11.11, 2.7.11.12, 2.7.11.13, 2.7.11.21, 2.7.11.22, 2.7.11.24, 2.7.11.25, 2.7.11.30 and 2.7.12.1 2.7.11.1, 2.7.11.8, 2.7.11.9, 2.7.11.10, 2.7.11.11, 2.7.11.12, 2.7.11.13, 2.7.11.21, 2.7.11.22, 2.7.11.24, 2.7.11.25, 2.7.11.30 and 2.7.12.1] </span></td></tr>
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1x9x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1x9x OCA], [https://pdbe.org/1x9x PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1x9x RCSB], [https://www.ebi.ac.uk/pdbsum/1x9x PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1x9x ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1x9x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1x9x OCA], [http://pdbe.org/1x9x PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1x9x RCSB], [http://www.ebi.ac.uk/pdbsum/1x9x PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1x9x ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/STE11_YEAST STE11_YEAST]] Serine/threonine protein kinase required for cell-type-specific transcription and signal transduction in yeast. It is thought that it phosphorylates the STE7 protein kinase which itself, phosphorylates the FUS3 and or KSS1 kinases.<ref>PMID:1628833</ref> <ref>PMID:15200959</ref> | + | [https://www.uniprot.org/uniprot/STE11_YEAST STE11_YEAST] Serine/threonine protein kinase required for cell-type-specific transcription and signal transduction in yeast. It is thought that it phosphorylates the STE7 protein kinase which itself, phosphorylates the FUS3 and or KSS1 kinases.<ref>PMID:1628833</ref> <ref>PMID:15200959</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | ==See Also== | | ==See Also== |
| - | *[[Serine/threonine protein kinase|Serine/threonine protein kinase]] | + | *[[Serine/threonine protein kinase 3D structures|Serine/threonine protein kinase 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 18824]] | + | [[Category: Large Structures]] |
| - | [[Category: Transferase]] | + | [[Category: Saccharomyces cerevisiae]] |
| - | [[Category: Bhattacharjya, S]] | + | [[Category: Bhattacharjya S]] |
| - | [[Category: Gingras, R]] | + | [[Category: Gingras R]] |
| - | [[Category: Ni, F]] | + | [[Category: Ni F]] |
| - | [[Category: Shaykhutdinov, R]] | + | [[Category: Shaykhutdinov R]] |
| - | [[Category: Whiteway, M]] | + | [[Category: Whiteway M]] |
| - | [[Category: Wu, C]] | + | [[Category: Wu C]] |
| - | [[Category: Xu, P]] | + | [[Category: Xu P]] |
| - | [[Category: Map kinase]]
| + | |
| - | [[Category: Sam domain]]
| + | |
| - | [[Category: Ste11]]
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| Structural highlights
Function
STE11_YEAST Serine/threonine protein kinase required for cell-type-specific transcription and signal transduction in yeast. It is thought that it phosphorylates the STE7 protein kinase which itself, phosphorylates the FUS3 and or KSS1 kinases.[1] [2]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Ste11, a homologue of mammalian MAPKKKs, together with its binding partner Ste50 works in a number of MAPK signaling pathways of Saccharomyces cerevisiae. Ste11/Ste50 binding is mediated by their sterile alpha motifs or SAM domains, of which homologues are also found in many other intracellular signaling and regulatory proteins. Here, we present the solution structure of the SAM domain or residues D37-R104 of Ste11 and its interactions with the cognate SAM domain-containing region of Ste50, residues M27-Q131. NMR pulse-field-gradient (PFG) and rotational correlation time measurements (tauc) establish that the Ste11 SAM domain exists predominantly as a symmetric dimer in solution. The solution structure of the dimeric Ste11 SAM domain consists of five well-defined helices per monomer packed into a compact globular structure. The dimeric structure of the SAM domain is maintained by a novel dimer interface involving interactions between a number of hydrophobic residues situated on helix 4 and at the beginning of the C-terminal long helix (helix 5). The dimer structure may also be stabilized by potential salt bridge interactions across the interface. NMR H/2H exchange experiments showed that binding of the Ste50 SAM to the Ste11 SAM very likely involves the positively charged extreme C-terminal region as well as exposed hydrophobic patches of the dimeric Ste11 SAM domain. The dimeric structure of the Ste11 SAM and its interactions with the Ste50 SAM may have important roles in the regulation and activation of the Ste11 kinase and signal transmission and amplifications through the Ste50-Ste11 complex.
Solution structure of the dimeric SAM domain of MAPKKK Ste11 and its interactions with the adaptor protein Ste50 from the budding yeast: implications for Ste11 activation and signal transmission through the Ste50-Ste11 complex.,Bhattacharjya S, Xu P, Gingras R, Shaykhutdinov R, Wu C, Whiteway M, Ni F J Mol Biol. 2004 Dec 3;344(4):1071-87. PMID:15544813[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Cairns BR, Ramer SW, Kornberg RD. Order of action of components in the yeast pheromone response pathway revealed with a dominant allele of the STE11 kinase and the multiple phosphorylation of the STE7 kinase. Genes Dev. 1992 Jul;6(7):1305-18. PMID:1628833
- ↑ Zarrinpar A, Bhattacharyya RP, Nittler MP, Lim WA. Sho1 and Pbs2 act as coscaffolds linking components in the yeast high osmolarity MAP kinase pathway. Mol Cell. 2004 Jun 18;14(6):825-32. PMID:15200959 doi:http://dx.doi.org/10.1016/j.molcel.2004.06.011
- ↑ Bhattacharjya S, Xu P, Gingras R, Shaykhutdinov R, Wu C, Whiteway M, Ni F. Solution structure of the dimeric SAM domain of MAPKKK Ste11 and its interactions with the adaptor protein Ste50 from the budding yeast: implications for Ste11 activation and signal transmission through the Ste50-Ste11 complex. J Mol Biol. 2004 Dec 3;344(4):1071-87. PMID:15544813 doi:10.1016/j.jmb.2004.09.018
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