<prompt> Yakha inguqulo eyinkimbinkimbi yalesi sigwebo Izinhlobo ezingezansi ze-MT 1 noma i-Mel 1a noma i-MTNR1A ne-MT 2 noma i-Mel 1b noma i-MTNR1B zitholakala kubantu nakwezinye izilwane ezincelisayo.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yomusho ithi Izinhlobo ezingezansi ze-MT 1 noma iMel 1a noma i-MTNR1A ne-MT 2 noma iMel 1b noma i-MTNR1B zitholakala kubantu nakwezinye izilwane ezincelisayo, kuyilapho sekutholakale uhlobo olungezansi lwe-melatonin receptor iMel 1c ezilwaneni eziphila olwandle nasezinyoni. 