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[Cloning and sequence analysis of salmon prolactin cDNA]
Yi Chuan Xue Bao = Acta Genetica Sinica
|January 1, 1989
Summary
Researchers identified and sequenced the full-length salmon prolactin gene from Chinook Salmon pituitary cDNA. This clone codes for a preprolactin precursor, advancing fish endocrinology research.
Area of Science:
- Molecular Biology
- Genetics
- Endocrinology
Context:
- Pacific Chinook Salmon (Oncorhynchus tschawytscha) pituitary gland serves as the source for genetic material.
- Gene expression and protein sequencing are crucial for understanding hormonal regulation in fish.
Purpose:
- To isolate and characterize the salmon prolactin gene.
- To determine the genetic sequence encoding salmon preprolactin.
Summary:
- A complementary DNA (cDNA) library was constructed from Pacific Chinook Salmon pituitaries.
- The salmon prolactin gene was screened using synthetic oligonucleotide probes derived from partial protein sequences.
- A full-size clone, designated PRL-10, was identified and sequenced, revealing a preprolactin coding sequence of 211 amino acids.
Impact:
- Provides a foundational genetic resource for studying salmon prolactin function.
- Contributes to the understanding of fish growth, osmoregulation, and reproductive physiology.
- Enables further research into the molecular mechanisms of prolactin signaling in teleosts.