Detection and quantification of one GT1 transcript and three GT4 transcripts by CAP/CTM and the prototype CAP/CTM v2/MMx1 and v2/MMx2 assays. GT4 transcripts 1, 2, and 3 contain the following amino acid substitution(s): transcript 1, A165T; transcript 2, A165T + G145A; and transcript 3, A165T + G145A + A142G.