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| Description: The SWI/SNF family opens chromatin structure and helps initiate transcription by either displacing nucleosomes away from regulatory sequences or ejecting nucleosomes. ISWI assembles and organizes nucleosomes in a regular pattern and contributes to transcription repression. SWR1 inserts the modified histone protein H2A.Z into nucleosomes to help facilitate displacementThe SWI/SNF family opens chromatin structure and helps initiate transcription by either displacing nucleosomes away from regulatory sequences or ejecting nucleosomes. ISWI assembles and organizes nucleosomes in a regular pattern and contributes to transcription repression. SWR1 inserts the modified histone protein H2A.Z into nucleosomes to help facilitate displacement Transcription activator Nucleosome N l A displacement UC eosome ACT—w SWVSNF ACT SWVSNF family assembly and T ‘ 0 organization A . . ., Nucleosome ejection Histone H2A.Z insertion Picture Stats: Views: 41 Filesize: 1000.63kB Height: 1321 Width: 5148 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=49311 |