E3 SUMO-protein ligase which facilitates SUMO1 conjugation by UBE2I . Involved in the sumoylation of HNRNPK, a p53/TP53 transcriptional coactivator, hence indirectly regulates p53/TP53 transcriptional activation resulting in p21/CDKN1A expression. Monosumoylates ZNF131 . ; Component of a Polycomb group multiprotein PRC1-like complex, a complex class required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development . PcG PRC1 complex acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-119', rendering chromatin heritably changed in its expressibility . Binds to histone H3 trimethylated at 'Lys-9' . Plays a role in the lineage differentiation of the germ layers in embryonic development .

E3 SUMO-protein ligase CBX4 (EC 2.3.2.-) (Chromobox protein homolog 4) (Polycomb 2 homolog) (Pc2) (hPc2)

o00257

Human,Mouse,Rat

WB,IHC,IP,FC

WB 1:1000
IHC 1:100-1:200
IP 1:20-1:50
FC 1:200-1:500

~62 kD

Rabbit

50mM Tris-Glycine(pH 7.4), 0.15M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.

Store at -20°C. Stable for 12 months from date of receipt.