Shiwei Ma, Wenge Hu, Chuangfu Chen, Yuanzhi Wang, Yan Ren, Xudong Cao, Jinliang Sheng, Characterization of β-Actin Promoter of Leuciscus merzbacheri, Journal of Animal and Veterinary Advances, Volume 11,Issue 20, 2012, Pages 3849-3854, ISSN 1680-5593, javaa.2012.3849.3854, (https://makhillpublications.co/view-article.php?doi=javaa.2012.3849.3854) Abstract: Leuciscus merzbacheri is a unique vulnerable indigenous fish which is only distributed in the Junggar Basin, Xinjiang. In this study, researchers cloned two L. merzbacheri β-actin promoter fragments of different length: SZ11 and SZ21 and analyzed their structural features. The mammalian expression vector pEGFP-N1 was used to construct eukaryotic expression vectors β1 pEGFP-N1-AFP III and β2 pEGFP-N1-AFP III in which fish type III antifreeze protein gene was used as the structural gene. The results showed that the cloned two fragments of β-actin promoters had the ability to drive the expression of the green fluorescent protein gene in BHK-21 cells. These data suggest that the vectors researchers constructed based on β-actin promoter could be exploited as all fish recombinant eukaryotic expression vector. Keywords: Leuciscus merzbacheri;promoter analysis;B-actin gene;green fluorescent protein;China