Exact(9)
This suggests that ati mRNA 3' end formation involves cleavage of a late transcript, with subsequent 3' polyadenylation of the 5' cleavage product.
This lariat structure, which has been characterized for an adenovirus 2 major late transcript, has a branch point, with 2'-5' and 3'-5' phosphodiester bonds emanating from a single adenosine residue.
Similarly, alternative splicing of the late transcript results in production of the viral capsid proteins VP1, VP2, and VP3 all of which are important for completion of the viral lytic cycle and formation of viral particles.
Early and late transcript annotation and GO terms.
In the late transcript set there was GO enrichment for axonogenesis, axon guidance, and neuroblast fate commitment (Additional file 3: Table S3).
Comparisons of Early versus Late transcript profiles show high similarity, with a strong correlation coefficient (Spearman's R = 0.952; P < 0.001; see Figure 1).
Similar(51)
Furthermore, levels of late transcripts also decreased for VSV-G pseudotyped virus, confirming that reverse transcription could be also affected by T. cruzi (Fig. 6C and D).
While poxvirus early transcripts have a defined termination signal, late transcripts have heterogeneous 3' ends as the early termination signal is not recognized by the viral late transcriptional apparatus.
Neither early nor late transcripts originating from the latter RNA start site contain long 5'-terminal poly(A) sequences.
As in HeLa cells, the 3' ends of some early transcripts overlapped the start of adjacent late transcripts.
There did not appear to be a consistent relationship between transcriptional timing and specific regions of genome organization/structure, although there was a general tendency for early transcripts to be located towards the termini and late transcripts towards the central regions of the genome.
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