tokens: Through deletion mutagenesis , we identify amino acids 2003 to 2212 of CBP , which we call carboxy-terminal region 2 ( CR2 ) , as the minimal region for Tax interaction .
folded_tokens: through deletion mutagenesis , we identify amino acid 2003 to 2212 of cbp , which we call carboxy-terminal region 2 ( cr2 ) , as the minimal region for tax interaction .