This dataset contains more than 1700 putative ncRNAs from the latest round of the Human Full-length cDNA Annotation Invitational (H-Invitational) project (release 3.4, August 2006) (Imanishi et al., 2004). Non-protein-coding transcripts are defined in this dataset by the absence of any open reading frame and not belonging to the pseudogene classification. In addition to the sequence data, details such as the Genbank accession, genomic location, transcript length, library of origin, and expression data (based upon publicly available microarray data where present) are also listed.