Transcriptional and Posttranscriptional Regulation of the CTNS Gene

Transcriptional and posttranscriptional regulation of HIV-1 gene expression.

Control of HIV-1 gene expression depends on two viral regulatory proteins, Tat and Rev. Tat stimulates transcription elongation by directing the cellular transcriptional elongation factor P-TEFb to nascent RNA polymerases. Rev is required for the transport from the nucleus to the cytoplasm of the unspliced and incompletely spliced mRNAs that encode the structural proteins of the virus. Molecula...

Transcriptional and posttranscriptional regulation of the plasminogen activator system.

The core protein components of the plasminogen activator (PA) system are two plasminogen activators, two plasminogen activator inhibitors and a urokinase type plasminogen activator-specific cell surface receptor. Various types of biological regulation are exerted through the interplay of these components mutually and with extracellular matrix proteins and cell membrane proteins, with or without...

Transcriptional and posttranscriptional down-regulation of the imprinted tumor suppressor gene ARHI (DRAS3) in ovarian cancer.

PURPOSE ARHI expression is lost or markedly down-regulated in the majority of ovarian cancers. The mechanism by which ARHI is down-regulated in ovarian cancers is still not clear. Our previous reports indicated that ARHI promoter activity was reduced in ovarian cancer cells, due in part to the effects of negative regulatory transcription factor(s). EXPERIMENTAL DESIGN AND RESULTS We now show ...

Transcriptional and Posttranscriptional Regulations of the HLA-G Gene

HLA-G has a relevant role in immune response regulation. The overall structure of the HLA-G coding region has been maintained during the evolution process, in which most of its variable sites are synonymous mutations or coincide with introns, preserving major functional HLA-G properties. The HLA-G promoter region is different from the classical class I promoters, mainly because (i) it lacks reg...

Posttranscriptional Inhibition of Gene Expression by Mycobacterium tuberculosis Offsets Transcriptional Synergism with IFN- and Posttranscriptional Up-Regulation by IFN-