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GLABRA 2 expression modulator (GEM) Pleckstrin Homology-Glucosyltransferases, Rab-like GTPase activators and Myotubularins (PH-GRAM) domain GEM interacts with CDT1, a pre-replication complex component that is involved in DNA replication, and with TTG1 (Transparent Testa GLABRA 1), a transcriptional regulator of epidermal cell fate. GEM controls the level of histone H3K9 methylation at the promoters of the GLABRA 2 and CAPRICE (CPC) genes, which are essential for epidermis patterning. GEM also regulates cell division in different root cell types. GEM regulates proliferation-differentiation decisions by integrating DNA replication, cell division and transcriptional controls. The GRAM domain is found in glucosyltransferases, myotubularins and other putative membrane-associated proteins. The GRAM domain is part of a larger motif with a pleckstrin homology (PH) domain fold. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",