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Updated: Aug 23, 2026

Functional Cloning Using a Xenopus Oocyte Expression System
Published on: January 30, 2016
Cloning, characterization and expression of the polypeptide release factor gene, eRF1, of Blepharisma japonicum
Wei Wang1, Bao-Feng Chai, Klaus Heckmann
1Institute of Biotechnology, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, P.R. China.
Abstract:
The polypeptide release factor gene, eRF1, of Blepharisma japonicum (Bj-eRF1) was cloned and sequenced. Its coding region was 1314 base pairs and encodes a protein of 437 amino acids. The cloned gene was expressed in Escherichia coli and the recombinant Bj-eRF1 polypeptide was purified by Ni2+-nitrilotriacetic acid agarose and Superose12 chromatography. Pull-down analysis showed that the recombinant Bj-eRF1 interacts with the heterologously-expressed release factor, eRF3C, of Euplotes octocarinatus.

