Contents
What type of transcription factor is Sp1?
Sp1 (specificity protein 1) is a well-known member of a family of transcription factors that also includes Sp2, Sp3 and Sp4, which are implicated in an ample variety of essential biological processes and have been proven important in cell growth, differentiation, apoptosis and carcinogenesis.
How do you identify a transcription factor for a binding site?
Prediction of transcription factor binding sites is generally performed by scanning a DNA sequence of interest with a position weight matrix (PWM) for a transcription factor of interest [6, 7] and various pattern-matching tools have been developed for this purpose.
What is the role of transcription factor Sp1?
Sp1 was the first characterized and still is one of the best studied mammalian transcription factors. It functions as a transcriptional activator of a variety of genes including house-keeping genes, cell cycle regulators and tissue-restricted genes.
How do you find the transcription factor of a gene?
- transcription factor binding sites were not over represented in modules •
- To find the genes encoding for Transcription factor in a given list •
- Whole genome expression profiling vs.
- Transcription factor binding site in Annovar •
- Searching unkwown consensus sequences •
Is SP1 a transcriptional activator?
In addition to DNA binding, the zinc-finger motifs may also function in protein-protein interactions that modulate DNA-binding specificity [20,21]. The amino-terminal regions of the Sp1-like/KLF proteins are much more variable and contain transcriptional activation or repression domains.
Where are transcription factors located in the cell?
nucleus
Nuclear localization In eukaryotes, transcription factors (like most proteins) are transcribed in the nucleus but are then translated in the cell’s cytoplasm. Many proteins that are active in the nucleus contain nuclear localization signals that direct them to the nucleus.
Where do most transcription factors bind?
Transcription factors are proteins that bind to the upstream regulatory elements of genes in the promoter and enhancer regions of DNA and stimulate or inhibit gene expression and protein synthesis.
What does SP1 stand for?
SP1
| Acronym | Definition |
|---|---|
| SP1 | Service Pack 1 (Microsoft) |
| SP1 | Serine Protease 1 (enzyme) |
| SP1 | Specific Protein 1 (biochemistry) |
| SP1 | Stimulatory Protein 1 (biochemistry) |
What is the function of SP1?
Function. The protein encoded by this gene is a zinc finger transcription factor that binds to GC-rich motifs of many promoters. The encoded protein is involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling.
What is the position of the SP1 binding site?
Sp1 binds to the GC box motif at nucleotide positions −81/−69 of the β1,4GalT V promoter and play an essential role in promoter activity in cancer cells (Sato and Furukawa, 2004).