... in Swiss-Prot and similar databases.Structure and function of the linkerhistone variantsLocation and structure of the linker histonesHistorically, the location of the globular domain of the linker ... modifications at Lys26, and at posi-tion 27 there is an alanine, rather than a serine [43].Ubiquitination and formylationFor the first time, ubiquitinations of the histone lin-ker protein were ... acetylation (lysine), phosphoryla-tion (serine, threonine), methylation (lysine, arginine),sumoylation (lysine), and ubiquitination (lysine). Otherepigenetic mechanisms may emerge in the future.Small...