The study of histone acetylation by ELISA - (Dec/26/2010 )

Tell me please, can I use the ELISA to study histone acetylation? The articles on this subject is almost always used Western bloting, and yet I have never seen the use of ELISA. Why is that? Is there a fundamental inability to examine acetylation of histones by ELISA?

Histone ELISAs are quite common now from epigentek or active motif

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