Part of Chromatin. Smaller units made of DNA & histone
octamers (8). 2 of each: H2A, H2B, H3, H4, all attached to the
larger H1.
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Chromatin composed of tetramer of histones 2 copies each of Histone
H2A, H2B, H3 and H4. DNA is bound on the nucleosome and uses 147
basepairs of DNA.
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what are the sources of histone binding protien RbAp48
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Since phosphate groups have a negative charge, adding them to
histone tails neutralizes them and probably reduces their affinity
for DNA. It might contribute to transcription because it stimulates
histone acetyltransferases which cause histone acetylation and
enhance transcription.