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- _5 wasQuotedFrom 18790699 provenance.
- _5 value "We demonstrate that multiple transcriptional co-activators are involved in MMP-9 promoter activation, including CBP/p300, PCAF, CARM1 and GRIP1. Furthermore, enhancement of MMP-9 promoter activity requires the histone acetyltransferase activity of PCAF but not that of CBP/p300, and the methyltransferase activity of CARM1. More importantly, these co-activators are able to activate MMP-9 promoter activity independently, and function in a synergistic manner. Chromatin immunoprecipitation assays demonstrate that these co-activators associate with the endogenous MMP-9 promoter, and that siRNA knockdown of expression of these co-activators reduces endogenous MMP-9 expression. " provenance.