NCIt definition : Linker Histone H1 interacts with DNA between nucleosome units in mediating chromatin
compaction into higher order structures. Histones are basic nuclear proteins responsible
for the nucleosome structure of eukaryotic chromatin. Repeating nucleosome units contain
two molecules each of core Histones H2A, H2B, H3, and H4 that form an octamer complex
around which approximately 146 base pairs of DNA is wrapped. (NCI);
Alternative definition : CDISC: An antigen in the core histone family and a subunit of the nucleosome complex,
with a designation of H1. It can be considered as an autoantigen and is commonly associated
with the autoimmune diseases systemic lupus erythematosus and rheumatoid arthritis.;