English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

The proteins from the nuclei of the sperm from two different species of the subclass Anomalodesmata of the class Bivalvia have been analyzed for the first time. In both instances--Agriodesma saxicola (Baird, 1863) and Mytilimeria nuttalli (Conrad, 1837)--the compositional pattern is very similar. The sperm chromatin is organized by a major protamine-like PL-I protein. As in all PL-I, this protein has a trypsin-resistant core. In both species analyzed, PL-I contains cysteine residues that account for the presence of the monomer (M) and dimer (D) forms observed in the total nuclear HCl extracts. The molecular mass of these proteins is 21,000 Da in A. saxicola, and 25,000 Da in M. nuttalli. All of the specimens of A. saxicola analyzed were hermaphrodites. As a result, the nuclear sperm-specific proteins from several preparations were readily and extensively degraded by protease activity from the oocytes. Such degradation was always observed when cross contamination between the two gonadal tissues accidentally occurred during protein extraction.

biological bulletin

Purification and Biochemical Characterization of the Nuclear Sperm-Specific Proteins of the Bivalve Mollusks <i>Agriodesma saxicola1</i> and <i>Mytilimeria nuttalli</i>

Purification and Biochemical Characterization of the Nuclear Sperm-Specific Proteins of the Bivalve Mollusks Agriodesma saxicola1 and Mytilimeria nuttalli