A snowy winter sometimes retains a transcript, but even those are rare.
We retain a predicted transcript as a predicted shared transcript if it appears both as a query with BLAST hits from one direction and as a subject BLAST hit in the other direction.
For this study we wished to produce a completely null wrn DT40 cell line, since an earlier wrn DT40 mutant retains a substantial transcript (2.5 of 4.5 kb) as assessed by Northern blot [32].
The consolidation process seeks to retain a high confidence set of transcripts, resolve transcript fusion events, and retain transcripts with the longest open reading frames.
Despite transcriptionally dormant state, the spermatozoa retain an entourage of transcripts, encoding transcription factors and proteins involved in signal transduction, cell proliferation, DNA condensation, regulation of sperm motility, capacitation and acrosome reaction [ 24- 28].
Thus in case of the native 5′-end protocol, only fragments derived from a 5′-end of a primary transcript will retain a 5′-monophosphate.
The categories were: 1) Single EST IR – Intron retention was implied by only a single EST, 2) Multiple EST IR – Intron retention was implied by multiple ESTs, 3) Processed IR – An intron was retained in a transcript structure that also showed successful splicing of another intron, 4) Alternative donor site selection, 5) Alternative acceptor site Selection, and 6) Exon Skipping.
The categories were as follows: Single EST IR – Intron retention was implied by only a single EST, Multiple EST IR – Intron retention was implied by multiple ESTs, and Processed IR – An intron was retained in a transcript structure that also showed successful splicing of another intron.
In mammalian cells, RNA polymerase I transcripts are uncapped and retain a polyphosphate 5' terminus.
Despite the transcriptionally inactive state, spermatozoa retain an entourage of mRNA transcripts encoding transcription factors and proteins involved in signal transduction, cell proliferation, chromatin condensation, regulation of sperm motility, capacitation and acrosome reaction [ 2- 7].
Similar observations were observed regarding the expression pattern of VvMYBPA1 in grape skins, in which VvMYBPA1 retained a relatively high transcript level two weeks after the onset of ripening and PA synthesis completely stopped when anthocyanin synthesis began [ 23].
