Timeless (tim) is a gene in Drosophila which encodes TIM an essential protein that regulates circadian rhythms. Timeless mRNA and protein oscillate rhythmically with time as part of a transcription-translation [negative feedback] loop involving the period gene and its protein.
This page contains content from the copyrighted Wikipedia article "Timeless (gene)"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.