Molecular cloning, characterization and expression analysis of ubiquitin protein ligase gene (As-ubpl) from Artemia sinica.

Ubiquitylation is an important protein post-translational regulation pathway, which is involved in controlling protein degradation, tumor occurrence and cell cycle regulation. E3 ubiquitin protein ligase (UBPL) plays a crucial role of the conjugation of activated ubiquitin to protein substrates and leads to targeting proteins for degradation by the proteasome. We amplified one full-length cDNA of the A. sinica UBPL (As-ubpl) gene by RACE technology. The full-length cDNA of As-ubpl is composed of 2931 bp, with a 2571 bp open reading frame (ORF) that encodes a polypeptide of 856 amino acids with a C2 domain, two domains with two conserved Trp (W) residues (WW) and a homologous to E6-AP Carboxyl Terminus (HECT) domain. The amount of As-ubpl showed from real-time PCR indicates that a high expression levels of As-ubpl at 20 h, 40 h and 3 days of embryo development, with highest expression levels appearing in the larval stage (40 h). Furthermore, As-ubpl transcripts were highly up-regulated under salinity (50‰) and low temperature stress (15 °C). These results indicate that As-ubpl is involved in protein regulation of the postdiapause development and in responses to salinity and low temperature stress. Copyright © 2013 Elsevier Inc. All rights reserved.

Citation

Zengrong Li, Feng Yao, Yifei Chen, Rui Zhang, Ying Lv, Na Zhao, Ting Wang, Wenting Xin, Lin Hou, Xiangyang Zou. Molecular cloning, characterization and expression analysis of ubiquitin protein ligase gene (As-ubpl) from Artemia sinica. Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology. 2013 Jun;165(2):90-8

PMID: 23511337

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