TY - JOUR T1 - Molecular Characterization and Expression Pattern of a Novel Flavonoid 3'-Hydroxylase Gene AU - Leifeng, Zhao AU - Fuzhao, Nian JO - Journal of Animal and Veterinary Advances VL - 12 IS - 16 SP - 1352 EP - 1356 PY - 2013 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2013.1352.1356 UR - https://makhillpublications.co/view-article.php?doi=javaa.2013.1352.1356 KW - Flavonoid KW -tobacco KW -flavonoid 3`-hydroxylase KW -expression pattern KW -flower AB - Flavonoids have significant health benefits for animals and humans. Flavonoid 3'-hydroxylase gene have been characterized to be required for flavonoid biosynthesis. In present experiment, the complete mRNA sequence of tobacco flavonoid 3'-hydroxylase gene was amplified using the rapid amplification of cDNA ends methods. The full-length tobacco flavonoid 3'-hydroxylase gene mRNA was 1828 bp containing an 1578 bp open reading frame which encodes a protein of 515 amino acids. Sequence analysis revealed that the flavonoid 3'-hydroxylase genes are conserved in plants. Results also showed that tobacco flavonoid 3'-hydroxylase gene has a closer genetic relationship with the flavonoid 3'-hydroxylase gene of Lycopersicon esculentum. Prediction of transmembrane helices showed that tobacco flavonoid 3'-hydroxylase might be a transmembrane protein. The expression profile was studied and the results indicated that tobacco flavonoid 3'-hydroxylase gene was highly expressed in in leaf and flower. These results established the primary foundation of utilization of tobacco flavonoids in the future. ER -