4eet

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Crystal structure of iLOVCrystal structure of iLOV

Structural highlights

4eet is a 2 chain structure with sequence from Arabidopsis thaliana. The March 2015 RCSB PDB Molecule of the Month feature on Phototropin by David Goodsell is 10.2210/rcsb_pdb/mom_2015_3. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.2Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PHOT2_ARATH Protein kinase that acts as a blue light photoreceptor in a signal-transduction pathway for photo-induced movements. Mediates calcium spiking of extra- and intracellular origins in response to blue light. Involved in hypocotyl phototropism. Contributes to the chloroplast accumulation in low blue light and mediates their translocation (avoidance response) at high fluence. Regulates stomata opening and photomorphogenesis response of leaf tissue. Not involved in hypocotyl elongation inhibition, anthocyanin accumulation or cotyledon opening.[1] [2] [3] [4] [5]

References

  1. ↑ Sakai T, Kagawa T, Kasahara M, Swartz TE, Christie JM, Briggs WR, Wada M, Okada K. Arabidopsis nph1 and npl1: blue light receptors that mediate both phototropism and chloroplast relocation. Proc Natl Acad Sci U S A. 2001 Jun 5;98(12):6969-74. Epub 2001 May 22. PMID:11371609 doi:http://dx.doi.org/10.1073/pnas.101137598
  2. ↑ Kagawa T, Sakai T, Suetsugu N, Oikawa K, Ishiguro S, Kato T, Tabata S, Okada K, Wada M. Arabidopsis NPL1: a phototropin homolog controlling the chloroplast high-light avoidance response. Science. 2001 Mar 16;291(5511):2138-41. PMID:11251116 doi:http://dx.doi.org/10.1126/science.291.5511.2138
  3. ↑ Harada A, Sakai T, Okada K. Phot1 and phot2 mediate blue light-induced transient increases in cytosolic Ca2+ differently in Arabidopsis leaves. Proc Natl Acad Sci U S A. 2003 Jul 8;100(14):8583-8. Epub 2003 Jun 23. PMID:12821778 doi:http://dx.doi.org/10.1073/pnas.1336802100
  4. ↑ Inada S, Ohgishi M, Mayama T, Okada K, Sakai T. RPT2 is a signal transducer involved in phototropic response and stomatal opening by association with phototropin 1 in Arabidopsis thaliana. Plant Cell. 2004 Apr;16(4):887-96. Epub 2004 Mar 18. PMID:15031408 doi:http://dx.doi.org/10.1105/tpc.019901
  5. ↑ Ohgishi M, Saji K, Okada K, Sakai T. Functional analysis of each blue light receptor, cry1, cry2, phot1, and phot2, by using combinatorial multiple mutants in Arabidopsis. Proc Natl Acad Sci U S A. 2004 Feb 24;101(8):2223-8. PMID:14982991

4eet, resolution 1.20Å

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OCA
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