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 (UniprotKB recommended name) | UniprotKB Accession | No. of coding gene(s) |
|---|---|---|
| Histone H1.0 or H10 | P43278 | 1 (H1F0) |
| Histone H1oo or H1foo | D3ZEG0 | 1 (H1FOO) |
| Testis-specific H1 histone or H1fnt | Q5RKG3 | 1 (H1FNT) |
| Spermatid-specific linker histone H1-like protein or Hils1 | D3ZZW6 | 1 (HILS1) |
| Histone H1.x or H1fx | D3ZIX4 | 1 (H1FX) |
| Histone H1t or H1t | P06349 | 1 (HIST1H1T) |
| Histone H1.5 or H1b | D3ZBN0 | 1 (HIST1H1B) |
| Histone H1 or H1d | M0R7B4 | 1 (HIST1H1D) |
| Histone H1.1 or H1a | D4A3K5 | 1 (HIST1H1A) |
| Histone H1c or H1c | A0A0G2K654 | 1 (HIST1H1C) |