2jul

From Proteopedia

(Difference between revisions)

Revision as of 10:20, 18 July 2018

NMR Structure of DREAM

Structural highlights

2jul is a 1 chain structure with sequence from Lk3 transgenic mice. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Gene:	Kcnip3, Csen, Dream, Kchip3 (LK3 transgenic mice)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[CSEN_MOUSE] Calcium-dependent transcriptional repressor that binds to the DRE element of genes including PDYN and FOS. Affinity for DNA is reduced upon binding to calcium and enhanced by binding to magnesium. Seems to be involved in nociception.^[1] ^[2] Regulatory subunit of Kv4/D (Shal)-type voltage-gated rapidly inactivating A-type potassium channels. Probably modulates channels density, inactivation kinetics and rate of recovery from inactivation in a calcium-dependent and isoform-specific manner. In vitro, modulates KCND2/Kv4.2 and KCND3/Kv4.3 currents. Involved in KCND2 and probably KCND3 trafficking to the cell surface (By similarity).^[3] ^[4] May play a role in the regulation of PSEN2 proteolytic processing and apoptosis. Together with PSEN2 involved in modulation of beta-amyloid formation (By similarity).^[5] ^[6]

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

DREAM (calsenilin/KChIP3) is an EF-hand calcium-binding protein that binds to specific DNA sequences and regulates Ca2+-induced transcription of prodynorphin and c-fos genes. Here, we present the atomic-resolution structure of Ca2+-bound DREAM in solution determined by nuclear magnetic resonance (NMR) spectroscopy. Pulsed-field gradient NMR diffusion experiments and 15N NMR relaxation analysis indicate that Ca2+-bound DREAM forms a stable dimer in solution. The structure of the first 77 residues from the N-terminus could not be determined by our NMR analysis. The C-terminal DREAM structure (residues 78-256) contains four EF-hand motifs arranged in a tandem linear array, similar to that seen in KChIP1, recoverin, and other structures of the neuronal calcium sensor (NCS) branch of the calmodulin superfamily. Mg2+ is bound at the second EF-hand, whereas Ca2+ is bound functionally at the third and fourth sites. The first and second EF-hands form an exposed hydrophobic groove on the protein surface lined by side-chain atoms of L96, F100, F114, I117, Y118, F121, F122, Y151, L155, L158, and L159 that are highly conserved in all NCS proteins. An exposed leucine near the C-terminus (L251) is suggested to form intermolecular contacts with leucine residues in the hydrophobic groove (L155, L158, and L159). Positively charged side chains of Arg and Lys (Lys87, Lys90, Lys91, Arg98, Lys101, Arg160, and Lys166) are clustered on one side of the protein surface and may mediate electrostatic contacts with DNA targets. We propose that Ca2+-induced dimerization of DREAM may partially block the putative DNA-binding site, which may suggest as to how Ca2+ abolishes DREAM binding to DNA to activate the transcription of prodynorphin and other downstream genes in pain control.

NMR structure of DREAM: Implications for Ca(2+)-dependent DNA binding and protein dimerization.,Lusin JD, Vanarotti M, Li C, Valiveti A, Ames JB Biochemistry. 2008 Feb 26;47(8):2252-64. Epub 2008 Jan 18. PMID:18201103^[7]

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

References

↑ Cheng HY, Pitcher GM, Laviolette SR, Whishaw IQ, Tong KI, Kockeritz LK, Wada T, Joza NA, Crackower M, Goncalves J, Sarosi I, Woodgett JR, Oliveira-dos-Santos AJ, Ikura M, van der Kooy D, Salter MW, Penninger JM. DREAM is a critical transcriptional repressor for pain modulation. Cell. 2002 Jan 11;108(1):31-43. PMID:11792319
↑ Lilliehook C, Bozdagi O, Yao J, Gomez-Ramirez M, Zaidi NF, Wasco W, Gandy S, Santucci AC, Haroutunian V, Huntley GW, Buxbaum JD. Altered Abeta formation and long-term potentiation in a calsenilin knock-out. J Neurosci. 2003 Oct 8;23(27):9097-106. PMID:14534243
↑ Cheng HY, Pitcher GM, Laviolette SR, Whishaw IQ, Tong KI, Kockeritz LK, Wada T, Joza NA, Crackower M, Goncalves J, Sarosi I, Woodgett JR, Oliveira-dos-Santos AJ, Ikura M, van der Kooy D, Salter MW, Penninger JM. DREAM is a critical transcriptional repressor for pain modulation. Cell. 2002 Jan 11;108(1):31-43. PMID:11792319
↑ Lilliehook C, Bozdagi O, Yao J, Gomez-Ramirez M, Zaidi NF, Wasco W, Gandy S, Santucci AC, Haroutunian V, Huntley GW, Buxbaum JD. Altered Abeta formation and long-term potentiation in a calsenilin knock-out. J Neurosci. 2003 Oct 8;23(27):9097-106. PMID:14534243
↑ Cheng HY, Pitcher GM, Laviolette SR, Whishaw IQ, Tong KI, Kockeritz LK, Wada T, Joza NA, Crackower M, Goncalves J, Sarosi I, Woodgett JR, Oliveira-dos-Santos AJ, Ikura M, van der Kooy D, Salter MW, Penninger JM. DREAM is a critical transcriptional repressor for pain modulation. Cell. 2002 Jan 11;108(1):31-43. PMID:11792319
↑ Lilliehook C, Bozdagi O, Yao J, Gomez-Ramirez M, Zaidi NF, Wasco W, Gandy S, Santucci AC, Haroutunian V, Huntley GW, Buxbaum JD. Altered Abeta formation and long-term potentiation in a calsenilin knock-out. J Neurosci. 2003 Oct 8;23(27):9097-106. PMID:14534243
↑ Lusin JD, Vanarotti M, Li C, Valiveti A, Ames JB. NMR structure of DREAM: Implications for Ca(2+)-dependent DNA binding and protein dimerization. Biochemistry. 2008 Feb 26;47(8):2252-64. Epub 2008 Jan 18. PMID:18201103 doi:10.1021/bi7017267

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/2jul"

@@ Line 1: / Line 1: @@
 ==NMR Structure of DREAM==
 <StructureSection load='2jul' size='340' side='right' caption='[[2jul]], [[NMR_Ensembles_of_Models | 15 NMR models]]' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Kcnip3, Csen, Dream, Kchip3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice])</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=2jul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2jul OCA], [http://pdbe.org/2jul PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2jul RCSB], [http://www.ebi.ac.uk/pdbsum/2jul 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=2jul FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2jul OCA], [http://pdbe.org/2jul PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2jul RCSB], [http://www.ebi.ac.uk/pdbsum/2jul PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2jul ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ju/2jul_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ju/2jul_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 34: / Line 35: @@
 [[Category: Lk3 transgenic mice]]
 [[Category: Ames, J]]
+[[Category: Alternative splicing]]
 [[Category: Apoptosis]]
+[[Category: Calcium]]
+[[Category: Cytoplasm]]
 [[Category: Dimer]]
 [[Category: Dna binding protein]]
@@ Line 47: / Line 51: @@
 [[Category: Nucleus]]
 [[Category: Palmitate]]
+[[Category: Polymorphism]]
 [[Category: Potassium]]
 [[Category: Potassium channel]]

2jul

From Proteopedia

Revision as of 10:20, 18 July 2018

NMR Structure of DREAM

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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