| AT3G12280 | retinoblastoma-related 1 retinoblastoma-related 1 (RBR1); FUNCTIONS IN: transcription factor binding; INVOLVED IN: in 15 processes; LOCATED IN: cytosol; EXPRESSED IN: 26 plant structures; EXPRESSED DURING: 15 growth stages; CONTAINS InterPro DOMAIN/s: Retinoblastoma-associated protein, B-box (InterPro:IPR002719), Cyclin-like (InterPro:IPR011028), Cyclin-related (InterPro:IPR013763), Retinoblastoma-associated protein, A-box (InterPro:IPR002720), Cyclin (InterPro:IPR006670); Has 676 Blast hits to 470 proteins in 118 species: Archae - 0; Bacteria - 0; Metazoa - 486; Fungi - 0; Plants - 147; Viruses - 0; Other Eukaryotes - 43 (source: NCBI BLink). Encodes a retinoblastoma homologue RETINOBLASTOMA-RELATED protein (RBR or RBR1). RBR controls nuclear proliferation in the female gametophyte. Also required for correct differentiation of male gametophytic cell types. Regulates stem cell maintenance in Arabidopsis roots. Involved in the determination of cell cycle arrest in G1 phase after sucrose starvation. RBR1 is also involved in regulation of imprinted genes. Together with MSI1 it represses the expression of MET1. This in turn activates expression of the imprinted genes FIS2 and FWA. Functions as a positive regulator of the developmental switch from embryonic heterotrophic growth to autotrophic growth | 3 | - | View |
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