U. Grossbach, SELECTIVE DISTRIBUTION OF HISTONE H1 VARIANTS AND HIGH-MOBILITY GROUPPROTEINS IN CHROMOSOMES, Seminars in cell biology, 6(4), 1995, pp. 237-246
Recent results on the differential distribution of sequence variants o
f histone H1, of proteins of the HMG 1/2 family, and of HMGI in polyte
ne chromosomes are reviewed. Several organisms are known to contain tw
o different HMG 1/2 proteins. In Chironomus, one of them is restricted
to decondensed puffs and may have a specific function. One of the H1
variants of Chironomus is found only in a minority of chromosome bands
and differs from the other H1 proteins of the organism by genomic org
anization and by an inserted structural motif that is also present in
single H1 variants of other organisms.