These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Changes in basic nuclear proteins during sperm maturation in Palaemon serratus (Crustacea Natantia).
    Author: Sellos D, le Gal Y.
    Journal: Cell Differ; 1981 Mar; 10(2):69-77. PubMed ID: 7226232.
    Abstract:
    The spermatozoa from the shrimp Palaemon serratus have been studied with respect to their morphological and biochemical characters. At the ultrastructural level the acrosomal vesicle of the nail-shaped spermatozoon displays a periodically striated bundle. This appearance seems to be characteristic for the Palaemonidae. The biochemical parameters of the chromatin, extracted from the spermatozoa, have been compared with those obtained from the testes and the hepatopancreas. The basic proteins of testes and sperm have been characterized by polyacrylamide gel electrophoresis. Protamines appear to be absent in the sperm of P. serratus. On the contrary, histones with a somatic character remain present. Moreover, supplementary histone fractions have been identified. These proteins have been further studied after purification on Biogel P-100. Their amino acid composition shows similarities to that of the H2A and H2B histone and has a molecular weight of 15,500 +/- 300.
    [Abstract] [Full Text] [Related] [New Search]