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1u3c

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Revision as of 11:53, 11 September 2015

Crystal Structure of the PHR domain of Cryptochrome 1 from Arabidopsis thaliana

Structural highlights

1u3c is a 1 chain structure with sequence from Arath. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , ,
Related:	1u3d
Gene:	CRY1 (ARATH)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[CRY1_ARATH] Mediates blue light-induced gene expression through the inhibition of COP1-mediated degradation of the transcription factor BIT1. Involved in blue light-dependent stomatal opening, CHS gene expression, inhibition of stem growth and increase of root growth.^[1] ^[2] ^[3] ^[4] ^[5]

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

Signals generated by cryptochrome (CRY) blue-light photoreceptors are responsible for a variety of developmental and circadian responses in plants. The CRYs are also identified as circadian blue-light photoreceptors in Drosophila and components of the mammalian circadian clock. These flavoproteins all have an N-terminal domain that is similar to photolyase, and most have an additional C-terminal domain of variable length. We present here the crystal structure of the photolyase-like domain of CRY-1 from Arabidopsis thaliana. The structure reveals a fold that is very similar to photolyase, with a single molecule of FAD noncovalently bound to the protein. The surface features of the protein and the dissimilarity of a surface cavity to that of photolyase account for its lack of DNA-repair activity. Previous in vitro experiments established that the photolyase-like domain of CRY-1 can bind Mg.ATP, and we observe a single molecule of an ATP analog bound in the aforementioned surface cavity, near the bound FAD cofactor. The structure has implications for the signaling mechanism of CRY blue-light photoreceptors.

Structure of the photolyase-like domain of cryptochrome 1 from Arabidopsis thaliana.,Brautigam CA, Smith BS, Ma Z, Palnitkar M, Tomchick DR, Machius M, Deisenhofer J Proc Natl Acad Sci U S A. 2004 Aug 17;101(33):12142-7. Epub 2004 Aug 6. PMID:15299148^[6]

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

References

↑ Malhotra K, Kim ST, Batschauer A, Dawut L, Sancar A. Putative blue-light photoreceptors from Arabidopsis thaliana and Sinapis alba with a high degree of sequence homology to DNA photolyase contain the two photolyase cofactors but lack DNA repair activity. Biochemistry. 1995 May 23;34(20):6892-9. PMID:7756321
↑ Ahmad M, Jarillo JA, Smirnova O, Cashmore AR. Cryptochrome blue-light photoreceptors of Arabidopsis implicated in phototropism. Nature. 1998 Apr 16;392(6677):720-3. PMID:9565033 doi:http://dx.doi.org/10.1038/33701
↑ Mao J, Zhang YC, Sang Y, Li QH, Yang HQ. From The Cover: A role for Arabidopsis cryptochromes and COP1 in the regulation of stomatal opening. Proc Natl Acad Sci U S A. 2005 Aug 23;102(34):12270-5. Epub 2005 Aug 10. PMID:16093319 doi:http://dx.doi.org/0501011102
↑ Canamero RC, Bakrim N, Bouly JP, Garay A, Dudkin EE, Habricot Y, Ahmad M. Cryptochrome photoreceptors cry1 and cry2 antagonistically regulate primary root elongation in Arabidopsis thaliana. Planta. 2006 Oct;224(5):995-1003. Epub 2006 May 9. PMID:16703358 doi:http://dx.doi.org/10.1007/s00425-006-0280-6
↑ Hong SH, Kim HJ, Ryu JS, Choi H, Jeong S, Shin J, Choi G, Nam HG. CRY1 inhibits COP1-mediated degradation of BIT1, a MYB transcription factor, to activate blue light-dependent gene expression in Arabidopsis. Plant J. 2008 Aug;55(3):361-71. Epub 2008 Apr 4. PMID:18397371 doi:http://dx.doi.org/TPJ3508
↑ Brautigam CA, Smith BS, Ma Z, Palnitkar M, Tomchick DR, Machius M, Deisenhofer J. Structure of the photolyase-like domain of cryptochrome 1 from Arabidopsis thaliana. Proc Natl Acad Sci U S A. 2004 Aug 17;101(33):12142-7. Epub 2004 Aug 6. PMID:15299148 doi:10.1073/pnas.0404851101

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/1u3c"

@@ Line 2: / Line 2: @@
 <StructureSection load='1u3c' size='340' side='right' caption='[[1u3c]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1u3c]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U3C OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1U3C FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1u3c]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Arath Arath]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U3C OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1U3C FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=HEZ:HEXANE-1,6-DIOL'>HEZ</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NDS:ETHYL+DIMETHYL+AMMONIO+PROPANE+SULFONATE'>NDS</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1u3d|1u3d]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CRY1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 Arabidopsis thaliana])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CRY1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 ARATH])</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=1u3c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u3c OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1u3c RCSB], [http://www.ebi.ac.uk/pdbsum/1u3c 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=1u3c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u3c OCA], [http://pdbe.org/1u3c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1u3c RCSB], [http://www.ebi.ac.uk/pdbsum/1u3c PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ 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 1u3c" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Arabidopsis thaliana]]
+[[Category: Arath]]
 [[Category: Brautigam, C A]]
 [[Category: Deisenhofer, J]]

1u3c

From Proteopedia

Revision as of 11:53, 11 September 2015

Crystal Structure of the PHR domain of Cryptochrome 1 from Arabidopsis thaliana

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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