CTR1 (CONSTITUTIVE TRIPLE RESPONSE 1); kinase/ protein serine/threonine/tyrosine kinase. Identical to Serine/threonine-protein kinase CTR1 (CTR1) [Arabidopsis Thaliana] (GB:Q05609); similar to serine/threonine protein kinase, putative [Arabidopsis thaliana] (TAIR:AT4G24480.1); similar to ethylene control element [Malus x domestica] (GB:ABI58288.1); similar to ethylene control element variant [Malus x domestica] (GB:ABI58289.1); similar to ethylene control element variant [Malus x domestica] (GB:ABI58290.1); contains InterPro domain Serine/threonine protein kinase; (InterPro:IPR002290); contains InterPro domain Protein kinase, core; (InterPro