+transcript_id expected_counts tau_value [pmc_value tau_pme_value tau_ci_lower_bound tau_ci_upper_bound] gene_id
+
+Fields are separated by the tab character. 'gene_id' is the gene_id of
+the gene which this transcript belongs to. If no gene information is
+provided, 'gene_id' and 'transcript_id' are the same.
+
+=item B<sample_name.transcript.bam, sample_name.transcript.sorted.bam and sample_name.transcript.sorted.bam.bai>
+
+Only generated when --no-bam-output is not specified.
+
+'sample_name.transcript.bam' is a BAM-formatted file of read
+alignments in transcript coordinates. The MAPQ field of each alignment
+is set to min(100, floor(-10 * log10(1.0 - w) + 0.5)), where w is the
+posterior probability of that alignment being the true mapping of a
+read. In addition, RSEM pads a new tag ZW:f:value, where value is a
+single precision floating number representing the posterior
+probability. Because this file contains all alignment lines produced
+by bowtie or user-specified aligners, it can also be used as a
+replacement of the aligner generated BAM/SAM file. For paired-end
+reads, if one mate has alignments but the other does not, this file
+marks the alignable mate as "unmappable" (flag bit 0x4) and appends an
+optional field "Z0:A:!".