Molecular cloning and characterization ofRab6gene in duck

Rab (ras-like in rat brain) proteins are small GTP-binding proteins that belong to largest subfamily in the small G protein, which are important for molecular modulation of membrane in the vesicular trafficking pathways. We have cloned and sequenced full length cDNA of Rab6 gene in duck. The cDNA sequence consists of 761 nucleotides and contains a complete open reading frame (ORF) of 627 nucleotides; the putative protein includes 208 amino acids. The CDS of duck Rab6 gene shares 86.1–90.0% homology with house mouse, silurana tropicalis, dog, human and orangutan, which indicates the Rab6 gene is high evolutional conservation in above animals.