Extraordinary divergence and positive Darwinian selection in a fusagenic protein coating the acrosomal process of abalone spermatozoa.

doi:10.1073/pnas.92.11.4957

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Article

Extraordinary divergence and positive Darwinian selection in a fusagenic protein coating the acrosomal process of abalone spermatozoa.

Proceedings of the National Academy of Sciences of the United States of America - 23 May 1995

Swanson W J, Vacquier V D

Abstract excerpt

During fertilization in marine invertebrates, fusion between sperm and egg cell membranes occurs at the tip of the sperm acrosomal process. In abalone sperm the acrosomal process is coated with an 18-kDa protein. In situ, this protein has no effect on the egg vitelline envelope, but in vitro it i...

Topics

Acrosome
Amino Acid Sequence
Animals
Base Sequence
DNA, Complementary
Genetic Variation
Intercellular Signaling Peptides and Proteins
Male
Molecular Sequence Data
Molecular Weight
Mollusca

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Open Reading Frames

Protein Biosynthesis

Protein Structure, Secondary

Proteins

RNA, Messenger

Selection, Genetic

Sequence Homology, Amino Acid

Source

Open in PubMed Open full text

Identifiers

PMID: 7761431
DOI: 10.1073/pnas.92.11.4957
PMCID: PMC41826

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 30 Aug 2026. Prepared record publication-7761431-2026-08-30.1. Manifest publication-graph-cohort-2026-08-30.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 30 Aug 2026.

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