Histone H1

Histone variants are 21 to 29 kDa proteins consisting of 194 to 255 amino acid residues. There are total 10 proteins. H1 is a linker histone which binds to the 'nucleosome' from outside and facilitates compaction of chromatin. Each H1 histones are coded by a single gene each.

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Variants of histone H1
Variants (UniprotKB recommended name) UniprotKB Accession No. of coding gene(s)
Histone H1.0 or H10P432781 (H1F0)
Histone H1oo or H1fooD3ZEG01 (H1FOO)
Testis-specific H1 histone or H1fntQ5RKG31 (H1FNT)
Spermatid-specific linker histone H1-like protein or Hils1D3ZZW61 (HILS1)
Histone H1.x or H1fxD3ZIX41 (H1FX)
Histone H1t or H1tP063491 (HIST1H1T)
Histone H1.5 or H1bD3ZBN01 (HIST1H1B)
Histone H1 or H1dM0R7B41 (HIST1H1D)
Histone H1.1 or H1aD4A3K51 (HIST1H1A)
Histone H1c or H1cA0A0G2K6541 (HIST1H1C)