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Cbx3 | Chromobox protein homolog 3; Component of heterochromatin. Recognizes and binds histone H3 tails methylated at 'Lys-9', leading to epigenetic repression. Probably involved in the repression of many genes located in euchromatin, such as E2F1, MYC and CDC25A. Involved in the formation of functional kinetochore through interaction with MIS12 complex proteins. Contributes to the conversion of local chromatin to a heterochromatin- like repressive state through H3 'Lys-9' trimethylation, mediates the recruitment of the methyltransferases SUV39H1 and/or SUV39H2 by the PER complex to the E-box [...] (183 aa) | ||||
Pde8a | High affinity cAMP-specific and IBMX-insensitive 3',5'-cyclic phosphodiesterase 8A; Hydrolyzes the second messenger cAMP, which is a key regulator of many important physiological processes. May be involved in maintaining basal levels of the cyclic nucleotide and/or in the cAMP regulation of germ cell development. Binding to RAF1 reduces RAF1 'Ser- 259' inhibitory-phosphorylation and stimulates RAF1-dependent EGF- activated ERK-signaling. Protects against cell death induced by hydrogen peroxide and staurosporine. (823 aa) |