Evolutionarily Conserved Roles for Apontic in Induction and Subsequent Decline of Cyclin E Expression

Bibliographic Details
Title: Evolutionarily Conserved Roles for Apontic in Induction and Subsequent Decline of Cyclin E Expression
Authors: Xian-Feng Wang, Jin-Xiao Liu, Zhi-Yuan Ma, Yang Shen, Hao-Ran Zhang, Zi-Zhang Zhou, Emiko Suzuki, Qing-Xin Liu, Susumu Hirose
Source: iScience, Vol 23, Iss 8, Pp 101369- (2020)
Publisher Information: Elsevier, 2020.
Publication Year: 2020
Collection: LCC:Science
Subject Terms: Biological Sciences, Molecular Biology, Cell Biology, Science
More Details: Summary: Cyclin E is a key factor for S phase entry, and deregulation of Cyclin E results in developmental defects and tumors. Therefore, proper cycling of Cyclin E is crucial for normal growth. Here we found that transcription factors Apontic (Apt) and E2f1 cooperate to induce cyclin E in Drosophila. Functional binding motifs of Apt and E2f1 are clustered in the first intron of Drosophila cyclin E and directly contribute to the cyclin E transcription. Knockout of apt and e2f1 together abolished Cyclin E expression. Furthermore, Apt up-regulates Retinoblastoma family protein 1 (Rbf1) for proper chromatin compaction, which is known to repress cyclin E. Notably, Apt-dependent up-regulation of Cyclin E and Rbf1 is evolutionarily conserved in mammalian cells. Our findings reveal a unique mechanism underlying the induction and subsequent decline of Cyclin E expression.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2589-0042
Relation: http://www.sciencedirect.com/science/article/pii/S2589004220305575; https://doaj.org/toc/2589-0042
DOI: 10.1016/j.isci.2020.101369
Access URL: https://doaj.org/article/73ae7b7dcce94df9a85c2028557a9dee
Accession Number: edsdoj.73ae7b7dcce94df9a85c2028557a9dee
Database: Directory of Open Access Journals
More Details
ISSN:25890042
DOI:10.1016/j.isci.2020.101369
Published in:iScience
Language:English