Modification of CCAAT/enhancer-binding protein-beta by the small ubiquitin-like modifier (SUMO) family members, SUMO-2 and SUMO-3.

Abstract excerpt

CCAAT/enhancer-binding protein-beta (C/EBP beta) activator isoforms, C/EBP beta-1 and C/EBP beta-2, differ by only 23 amino acids in the human; however, evidence is accumulating that these transcription factors are functionally distinct. Here we demonstrate that C/EBP beta-1, but not C/EBP beta-2, is conjugated to the small ubiquitin-like modifier (SUMO) family members, SUMO-2 and SUMO-3 despite the fact that the...

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