Extensive SUMO Modification of Repressive Chromatin Factors Distinguishes Pluripotent from Somatic Cells.

Of 191 known pluripotency factors detected in the total proteome data, 47 were modified by SUMO2/3, demonstrating a highly significant propensity for SUMO2/3 to specifically target pluripotency factors compared with other proteins ( Figure S5 A).

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