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Molecular cloning of a novel LOS2 gene from Capsella bursa-pastoris
Si-Xiu Liu1, Xing-Long Wang, Jin-Shui Yang
1State Key Laboratory of Genetic Engineering, Fudan-SJTU-Nottingham Plant Biotechnology R & D Center, Morgan-Tan International Center for Life Sciences, School of Life Sciences, Fudan University, Shanghai 200433, China.
Abstract:
A new LOS2 gene was cloned from C. bursa-pastoris by rapid amplification of cDNA ends (RACE). The full-length cDNA of C. bursa-pastoris LOS2 gene (designated as Cblos2) was 1694 bp containing a 1332 bp open reading frame (ORF) encoding a 444 amino acid protein. The predicted CbLOS2 protein contained enolase-N domain, enolase domain, conserved putative DNA-binding and repression domains like LOS2 from A. thaliana. Bioinformatic analysis indicated that CbLOS2 had similarity with other enolase proteins. Cold acclimation assay revealed that Cblos2 expressed constitutively in C. bursa-pastoris and was involved in the cold acclimation process, implying CbLOS2 was a bi-functional enolase.
