Retinoblastoma protein homolog RBF2; It is involved in the biological process described with: cell differentiation; regulation of mitotic cell cycle; negative regulation of G1/S transition of mitotic cell cycle; negative regulation of transcription by RNA polymerase II.

Transcription factor Dp; Component of the DREAM complex, a multiprotein complex that can both act as a transcription activator or repressor depending on the context. In follicle cells, the complex plays a central role in the site-specific DNA replication at the chorion loci. During development, the complex represses transcription of developmentally controlled E2F target genes. Can stimulate E2F-dependent transcription.

Transcription factor E2F2; Transcriptional repressor that binds to E2f sites and represses E2f-regulated target genes. Binding to E2f sites requires transcription factor Dp. Acts synergistically with Rbf2 to antagonize E2f1-mediated transcriptional activation. Component of the DREAM complex, a multiprotein complex that can both act as a transcription activator or repressor depending on the context. The DREAM complex is required for recruiting E2f2 at differentiation-specific promoters and for stabilizing E2f2-Rbf complexes during S phase. During development, the complex represses trans [...]

G2/mitotic-specific cyclin-A; Cyclin A (CycA) encodes a protein that binds to the product of Cdk1, thereby promoting Cdk1's protein kinase activity. The CycA-Cdk1 complex controls important aspects of progression through the cell cycle, including entry into mitosis. During the G2 phase, this complex is important for prevention of premature DNA re-replication. During mitosis and G1, the product of CycA is rapidly degraded (involving APC/C and the proteasome), resulting in inactivation of Cdk1 protein kinase activity.

G1/S-specific cyclin-E; Essential for the control of the cell cycle at the G1/S (start) transition. Targeted by archipelago for degradation by the SFC ubiquitin ligase complex.

Cyclin-dependent kinase 2 (Cdk2) encodes a catalytic protein kinase subunit that can only become active after association with the product of CycE. The protein kinase activity of the CycE-Cdk2 complex controls important aspects of progression through the G1 and S phases of the cell cycle. In addition, periodic CycE-Cdk2 activity regulates progression through endoreduplication cycles; Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. CDC2/CDKX subfamily.

Cyclin-dependent kinase 4 (Cdk4) encodes a protein that contributes to cell cycle progression and cell growth. It is involved in the regulation of JAK-STAT and TORC1 signalling pathways.

Histone deacetylase HDAC1; Catalyzes the deacetylation of lysine residues on the N- terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation may constitute a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. For instance, deacetylation of histone H3 may be a prerequisite for the subsequent recruitment of the histone methyltransferase Su(var)3-9 to histones. Involved in position-effect variegation (PEV). In the larval brain, part of a regulatory network including the transcript [...]

Cyclin D (CycD) encodes a protein that binds to the product of Cdk4, thereby promoting its kinase activity. The CycD-Cdk4 complex promotes cell growth and progression through the G1 phase - it phosphorylates and thereby inhibits the product of Rbf, the ortholog of the human tumor suppressor retinoblastoma protein.