Nucleotide and amino acid sequence of the N-terminus of goldfish COPA. The lower case letters indicate the 5’-untranslated region (UTR) of goldfish COPA.
The start codon (Met, M) is found at nucleotides 88–90. The thick underlined region indicates goldfish xenin. The broken-underlined region indicates the proxenin sequence. The thin underlined region indicates the remaining aa of the partial COPA sequence obtained. The highlighted aa are required for xenin receptor-binding. The 3 aa in the box are the putative cathepsin E recognition site. NCBI Accession Number: JQ929912.