Do It Mobile - L cycle regulation. The LxCxE motif and the tripeptide HDP of http://do-it-mobile.com/story.php?title=l-cycle-regulation-the-lxcxe-motif-and-the-tripeptide-hdp-of-8 L cycle regulation. The LxCxE motif and the tripeptide HDP of the J domain of the polyomavirus tumor proteins make direct contacts with the Rb proteins and Hsc70, respectively; together they effect the release of members of the E2F family of transcription factors from their Rb partners to promote cell cycle progression [reviewed in 55]. There is less certainty about the identity of tAg amino acids Thu, 14 Jan 2021 19:40:45 UTC en