1oxk

From Proteopedia

(Difference between revisions)

Revision as of 08:01, 15 February 2018

Complex between YPD1 and SLN1 response regulator domain in space group P3(2)

Structural highlights

1oxk is a 12 chain structure with sequence from Atcc 18824. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1qsp, 1oxb
Gene:	YPD1 (ATCC 18824), SLN1 OR YPD2 OR YIL147C (ATCC 18824)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[YPD1_YEAST] Phosphorelay intermediate protein that is part of the branched SLN1-YPD1-SKN7/SSK1 two-component regulatory system, which controls activity of the HOG1 pathway and gene expression in response to changes in the osmolarity of the extracellular environment. Catalyzes the phosphoryl group transfer from the membrane-bound osmosensing histidine kinase SLN1 to two distinct response regulator proteins, SSK1 in the cytoplasm, and transcription factor SKN7 in the nucleus.^[1] ^[2] [SLN1_YEAST] Histidine kinase that acts as a osmosensor at the plasma membrane. Part of the bifurcated SLN1-YPD1-SKN7/SSK1 two-component regulatory system, which controls activity of the HOG1 pathway and gene expression in response to changes in the osmolarity of the extracellular environment. Under normal osmotic conditions, the histidine kinase autophosphorylates His-576. This phosphate is subsequently transferred to Asp-1144, from where it is relayed to 'His-64' of the phosphorelay intermediate protein YPD1. Under high osmolarity conditions, the histidine kinase is no longer active.^[3] ^[4]

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

In Saccharomyces cerevisiae, a branched multistep phosphorelay signaling pathway regulates cellular adaptation to hyperosmotic stress. YPD1 functions as a histidine-phosphorylated protein intermediate required for phosphoryl group transfer from a membrane-bound sensor histidine kinase (SLN1) to two distinct response regulator proteins (SSK1 and SKN7). These four proteins are evolutionarily related to the well-characterized "two-component" regulatory proteins from bacteria. Although structural information is available for many two-component signaling proteins, there are very few examples of complexes between interacting phosphorelay partners. Here we report the first crystal structure of a prototypical monomeric histidine-containing phosphotransfer (HPt) protein YPD1 in complex with its upstream phosphodonor, the response regulator domain associated with SLN1.

The yeast YPD1/SLN1 complex: insights into molecular recognition in two-component signaling systems.,Xu Q, Porter SW, West AH Structure. 2003 Dec;11(12):1569-81. PMID:14656441^[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Janiak-Spens F, Sparling DP, West AH. Novel role for an HPt domain in stabilizing the phosphorylated state of a response regulator domain. J Bacteriol. 2000 Dec;182(23):6673-8. PMID:11073911
↑ Li S, Ault A, Malone CL, Raitt D, Dean S, Johnston LH, Deschenes RJ, Fassler JS. The yeast histidine protein kinase, Sln1p, mediates phosphotransfer to two response regulators, Ssk1p and Skn7p. EMBO J. 1998 Dec 1;17(23):6952-62. PMID:9843501 doi:http://dx.doi.org/10.1093/emboj/17.23.6952
↑ Posas F, Wurgler-Murphy SM, Maeda T, Witten EA, Thai TC, Saito H. Yeast HOG1 MAP kinase cascade is regulated by a multistep phosphorelay mechanism in the SLN1-YPD1-SSK1 "two-component" osmosensor. Cell. 1996 Sep 20;86(6):865-75. PMID:8808622
↑ Li S, Ault A, Malone CL, Raitt D, Dean S, Johnston LH, Deschenes RJ, Fassler JS. The yeast histidine protein kinase, Sln1p, mediates phosphotransfer to two response regulators, Ssk1p and Skn7p. EMBO J. 1998 Dec 1;17(23):6952-62. PMID:9843501 doi:http://dx.doi.org/10.1093/emboj/17.23.6952
↑ Xu Q, Porter SW, West AH. The yeast YPD1/SLN1 complex: insights into molecular recognition in two-component signaling systems. Structure. 2003 Dec;11(12):1569-81. PMID:14656441

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1oxk"

@@ Line 1: / Line 1: @@
 ==Complex between YPD1 and SLN1 response regulator domain in space group P3(2)==
 <StructureSection load='1oxk' size='340' side='right' caption='[[1oxk]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1qsp|1qsp]], [[1oxb|1oxb]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">YPD1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), SLN1 OR YPD2 OR YIL147C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</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=1oxk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oxk OCA], [http://pdbe.org/1oxk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1oxk RCSB], [http://www.ebi.ac.uk/pdbsum/1oxk PDBsum]</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=1oxk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oxk OCA], [http://pdbe.org/1oxk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1oxk RCSB], [http://www.ebi.ac.uk/pdbsum/1oxk PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1oxk ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ox/1oxk_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ox/1oxk_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

1oxk

From Proteopedia

Revision as of 08:01, 15 February 2018

Complex between YPD1 and SLN1 response regulator domain in space group P3(2)

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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