tokens: We have introduced a mutation ( Ser36 -- > Asn ) into this domain of p190 that decreased its ability to bind guanine nucleotide when expressed as a hemagglutinin ( HA ) - tagged protein in COS cells .
folded_tokens: we have introduce a mutation ( ser36 -- > asn ) into this domain of p190 that decrease its ability to bind guanine nucleotide when express as a hemagglutinin ( HA ) - tag protein in cos cell .