| First Author | Schwartz ML | Year | 1994 |
| Journal | J Biol Chem | Volume | 269 |
| Issue | 18 | Pages | 13444-50 |
| PubMed ID | 8175776 | Mgi Jnum | J:18000 |
| Mgi Id | MGI:66022 | Doi | 10.1016/s0021-9258(17)36852-7 |
| Citation | Schwartz ML, et al. (1994) Brain-specific enhancement of the mouse neurofilament heavy gene promoter in vitro. J Biol Chem 269(18):13444-50 |
| abstractText | We have investigated the DNA elements responsible for transcription from the proximal portion of the mouse neurofilament heavy gene (NF-H) promoter by in vitro transcription using extracts from expressing (brain) and non-expressing (liver) tissues. We have found that constructs containing 5' region from -1314 to -115 exhibit a 3-5-fold higher level of NF-H promoter activity, relative to the adenovirus major late promoter (pML), in brain versus liver extracts. Deletion to -85 lowers the level of brain transcription by 2-fold, while deletion from -65 through -31 reduces transcription by 5-fold to a relatively strong (10% of pML) basal level. Basal level expression is observed in all deletions transcribed with liver extract. Deletion to -24 (TATA-less) abolishes promoter activity with both extracts. Deletion of the -115 to -65 region from a larger construct reduces transcription in brain extracts to basal levels, suggesting that this region contains the elements necessary for the brain-specific enhancement of promoter function. Mutation of a palindromic sequence within this region abolishes brain-specific enhanced promoter activity. This loss of enhanced transcriptional activity is correlated with the loss of a shifted band in gel shift assays. Our studies suggest that the sequence (-106)GGGGAGGAGG-(15 bp)-CCTCCTCCCC(-72) (where bp = base pairs) is important in brain-specific enhancement of transcription from the mouse NF-H promoter. |
