Abstract
In epigenetic signaling pathways, histone tails are heavily modified, resulting in the recruitment of effector molecules that can influence transcription. One such molecule, plant homeodomain finger protein 20 (PHF20), uses a Tudor domain to read dimethyl lysine residues and is a known component of the MOF (male absent on the first) histone acetyltransferase protein complex, suggesting it plays a role in the cross-talk between lysine methylation and histone acetylation. We sought to investigate the biological role of PHF20 by generating a knockout mouse. Without PHF20, mice die shortly after birth and display a wide variety of phenotypes within the skeletal and hematopoietic systems. Mechanistically, PHF20 is not required for maintaining the global H4K16 acetylation levels or locus specific histone acetylation but instead works downstream in transcriptional regulation of MOF target genes.
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