This line #2 Angptl8 knock out (KO) rats were generated using the CRISPR/Cas9 system containing
two guide RNAs (gRNAs) targeting exons 2 and 3 in the rat Angptl8 gene. A mixture of transcribed Cas9 and gRNAs was microinjected into F344/Stm rat zygotes [National BioResource Project rat number: 0140) provided by the National BioResource Project for the Rat in Japan. Two lines of rats heterozygous for Angptl8 (lines #1 and #2). Male and female Het rats were intercrossed to obtain homozygous Angptl8 KO rats. Rats were genotyped by PCR with the following primers5'-GGGTGAGCAAAGCTGACCTA-3' (sense) and 5'-GAGTAAACCCACCAGGCTCA-3' (antisense) for line #2. A 980-bp deletion in the ANGPTL8 gene was identified in line # 2, resulting in a premature termination codon.