Detailed Instructions: In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
Q: The longest cDNA insert identified was 2 . 2 kb and encoded the entire 462 - amino acid open reading frame of rat CgA including an 18 - amino acid hydrophobic signal peptide .
A:
rat CgA