Localization of testis-variant histones in rat testis chromatin

Histochemical Localization of Certain Oxidative Enzymes in the Rat Testis.

The localization and turnover of glutathione in the rat testis.

Sulfhydryl compounds have been demonstrated in various regions of the male reproductive tract: glutathione has been found in spermatozoa (1,2) and ergothioneine and possibly other sulfhydryl compounds originate in the prostate and seminal vesicles and are known t.o be influential constituents of seminal fluid (3). Little is known, however, about the identity or function of sulfur compounds in t...

Trout testis cells. 3. Acetylation of histones in different cell types from developing trout testis.

Acetylation of histones has been observed in both the spermatocytes and spermatids from developing trout testis. In the former cell type, both histone synthesis and extensive acetylation occur, whereas in the spermatids there is histone acetylation, but very little synthesis. The half-life of the histone acetyl groups is approximately 23 hours in the prespermatid cells. It is suggested that the...

Assembly of variant histones into chromatin.

Chromatin can be differentiated by the deposition of variant histones at centromeres, active genes, and silent loci. Variant histones are assembled into nucleosomes in a replication-independent manner, in contrast to assembly of bulk chromatin that is coupled to replication. Recent in vitro studies have provided the first glimpses of protein machines dedicated to building and replacing alternat...

Developing and Adult Rat Testis

23 Iron is essential for male fertility and disruptions in iron balance lead to impairment of testicular 24 function. The divalent metal transporter DMT1 is a key modulator of transferrin and non-transferrin 25 bound iron homeostasis. As a first step in determining the role of DMT1 in the testis, we have 26 determined the pattern of DMT1 expression in the developing and adult rat testis. Northe...