Table 1. Amount of genes in cellular and exosomal RNA based on 90% coverage over protein-coding sequence of genes and exons of non-coding genes.

Note the large proportion of non-coding transcripts in exosomal RNA.

Transcript type	MDA-MB-231 cellular genes (%)	MDA-MB-231 exosomal genes (%)	MDA-MB-436 exosomal genes (%)
Protein-coding	90.8	50.4	47.6
Non-coding	9.2	49.6	52.4