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1t18

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Revision as of 09:24, 9 February 2016

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

Structural highlights

1t18 is a 1 chain structure with sequence from Dsm 244. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1t19, 1t1a, 1t1b, 1t1c
Gene:	PYP (DSM 244)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[PYP_HALHA] Photoactive blue light protein. Probably functions as a photoreceptor for a negative phototaxis response.

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 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.

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:15642261^[1]

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

References

↑ Rajagopal S, Anderson S, Srajer V, Schmidt M, Pahl R, Moffat K. A structural pathway for signaling in the E46Q mutant of photoactive yellow protein. Structure. 2005 Jan;13(1):55-63. PMID:15642261 doi:10.1016/j.str.2004.10.016

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/1t18"

@@ Line 6: / Line 6: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1t19|1t19]], [[1t1a|1t1a]], [[1t1b|1t1b]], [[1t1c|1t1c]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PYP ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1053 DSM 244])</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=1t18 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1t18 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1t18 RCSB], [http://www.ebi.ac.uk/pdbsum/1t18 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=1t18 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1t18 OCA], [http://pdbe.org/1t18 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1t18 RCSB], [http://www.ebi.ac.uk/pdbsum/1t18 PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 18: @@
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
-</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/chain_selection.php?pdb_ID=2ata ConSurf].
+</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].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 28: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1t18" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

1t18

From Proteopedia

Revision as of 09:24, 9 February 2016

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

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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