ZCW32 (BIGPETAL, BIGPETALUB); DNA binding / transcription factor. similar to basic helix-loop-helix (bHLH) family protein [Arabidopsis thaliana] (TAIR:AT5G62610.1); similar to MYC1 [Catharanthus roseus] (GB:AAQ14331.1); contains InterPro domain Basic helix-loop-helix dimerisation region bHLH; (InterPro:IPR001092); contains InterPro domain Helix-loop-helix DNA-binding; (InterPro:IPR011598)