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1t18

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[[Image:1t18.gif|left|200px]]
 
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==Early intermediate IE1 from time-resolved crystallography of the E46Q mutant of PYP==
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The line below this paragraph, containing "STRUCTURE_1t18", creates the "Structure Box" on the page.
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<StructureSection load='1t18' size='340' side='right'caption='[[1t18]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1t18]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Halorhodospira_halophila Halorhodospira halophila]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1T18 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1T18 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">X-ray diffraction, [[Resolution|Resolution]] 1.6&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HC4:4-HYDROXYCINNAMIC+ACID'>HC4</scene></td></tr>
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{{STRUCTURE_1t18| PDB=1t18 | SCENE= }}
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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=1t18 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1t18 OCA], [https://pdbe.org/1t18 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1t18 RCSB], [https://www.ebi.ac.uk/pdbsum/1t18 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1t18 ProSAT]</span></td></tr>
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</table>
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'''Early intermediate IE1 from time-resolved crystallography of the E46Q mutant of PYP'''
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== Function ==
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[https://www.uniprot.org/uniprot/PYP_HALHA PYP_HALHA] Photoactive blue light protein. Probably functions as a photoreceptor for a negative phototaxis response.
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== Evolutionary Conservation ==
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==Overview==
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[[Image:Consurf_key_small.gif|200px|right]]
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In the bacterial photoreceptor photoactive yellow protein (PYP), absorption of blue light by its chromophore leads to a conformational change in the protein associated with differential signaling activity, as it executes a reversible photocycle. Time-resolved Laue crystallography allows structural snapshots (as short as 150 ps) of high crystallographic resolution (approximately 1.6 A) to be taken of a protein as it functions. Here, we analyze by singular value decomposition a comprehensive time-resolved crystallographic data set of the E46Q mutant of PYP throughout the photocycle spanning 10 ns-100 ms. We identify and refine the structures of five distinct intermediates and provide a plausible chemical kinetic mechanism for their inter conversion. A clear structural progression is visible in these intermediates, in which a signal generated at the chromophore propagates through a distinct structural pathway of conserved residues and results in structural changes near the N terminus, over 20 A distant from the chromophore.
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Check<jmol>
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<jmolCheckbox>
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==About this Structure==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/t1/1t18_consurf.spt"</scriptWhenChecked>
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1T18 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Halorhodospira_halophila Halorhodospira halophila]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1T18 OCA].
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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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==Reference==
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</jmolCheckbox>
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A structural pathway for signaling in the E46Q mutant of photoactive yellow protein., Rajagopal S, Anderson S, Srajer V, Schmidt M, Pahl R, Moffat K, Structure. 2005 Jan;13(1):55-63. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15642261 15642261]
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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=1t18 ConSurf].
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
[[Category: Halorhodospira halophila]]
[[Category: Halorhodospira halophila]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Anderson, S.]]
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[[Category: Anderson S]]
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[[Category: Moffat, K.]]
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[[Category: Moffat K]]
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[[Category: Pahl, R.]]
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[[Category: Pahl R]]
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[[Category: Rajagopal, S.]]
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[[Category: Rajagopal S]]
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[[Category: Schmidt, M.]]
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[[Category: Schmidt M]]
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[[Category: Srajer, V.]]
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[[Category: Srajer V]]
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[[Category: Pas domain]]
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[[Category: Photoactive yellow protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:22:45 2008''
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Current revision

Early intermediate IE1 from time-resolved crystallography of the E46Q mutant of PYP

PDB ID 1t18

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