Crystal structure of Myc3 N-terminal JAZ-binding domain [44-238] from ArabidopsisCrystal structure of Myc3 N-terminal JAZ-binding domain [44-238] from Arabidopsis

Structural highlights

4rqw is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
NonStd Res:
Resources:FirstGlance, OCA, RCSB, PDBsum

Function

[MYC3_ARATH] Transcription factor involved in tryptophan, jasmonic acid (JA) and other stress-responsive gene regulation. With MYC2 and MYC4, controls additively subsets of JA-dependent responses. Can form complexes with all known glucosinolate-related MYBs to regulate glucosinolate biosynthesis. Binds to the G-box (5'-CACGTG-3') of promoters. Activates multiple TIFY/JAZ promoters.[1] [2] [3] [4] [5]

References

  1. Smolen GA, Pawlowski L, Wilensky SE, Bender J. Dominant alleles of the basic helix-loop-helix transcription factor ATR2 activate stress-responsive genes in Arabidopsis. Genetics. 2002 Jul;161(3):1235-46. PMID:12136026
  2. Cheng Z, Sun L, Qi T, Zhang B, Peng W, Liu Y, Xie D. The bHLH transcription factor MYC3 interacts with the Jasmonate ZIM-domain proteins to mediate jasmonate response in Arabidopsis. Mol Plant. 2011 Mar;4(2):279-88. doi: 10.1093/mp/ssq073. Epub 2011 Jan 17. PMID:21242320 doi:http://dx.doi.org/10.1093/mp/ssq073
  3. Niu Y, Figueroa P, Browse J. Characterization of JAZ-interacting bHLH transcription factors that regulate jasmonate responses in Arabidopsis. J Exp Bot. 2011 Mar;62(6):2143-54. doi: 10.1093/jxb/erq408. Epub 2011 Feb 14. PMID:21321051 doi:http://dx.doi.org/10.1093/jxb/erq408
  4. Fernandez-Calvo P, Chini A, Fernandez-Barbero G, Chico JM, Gimenez-Ibanez S, Geerinck J, Eeckhout D, Schweizer F, Godoy M, Franco-Zorrilla JM, Pauwels L, Witters E, Puga MI, Paz-Ares J, Goossens A, Reymond P, De Jaeger G, Solano R. The Arabidopsis bHLH transcription factors MYC3 and MYC4 are targets of JAZ repressors and act additively with MYC2 in the activation of jasmonate responses. Plant Cell. 2011 Feb;23(2):701-15. doi: 10.1105/tpc.110.080788. Epub 2011 Feb 18. PMID:21335373 doi:http://dx.doi.org/10.1105/tpc.110.080788
  5. Schweizer F, Fernandez-Calvo P, Zander M, Diez-Diaz M, Fonseca S, Glauser G, Lewsey MG, Ecker JR, Solano R, Reymond P. Arabidopsis basic helix-loop-helix transcription factors MYC2, MYC3, and MYC4 regulate glucosinolate biosynthesis, insect performance, and feeding behavior. Plant Cell. 2013 Aug;25(8):3117-32. doi: 10.1105/tpc.113.115139. Epub 2013 Aug, 13. PMID:23943862 doi:http://dx.doi.org/10.1105/tpc.113.115139

4rqw, resolution 2.20Å

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