- Catalog number
- A00110-1-Dylight550
- Size / count
- 100 µg
- Dry ice
- No
- Hazardous
- No
- Discontinued
- Yes
- Background
- Transcription factor Sp1, also known as specificity protein 1* is a protein that in humans is encoded by the SP1 gene. 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. Post-translational modifications such as phosphorylation, acetylation, glycosylation, and proteolytic processing significantly affect the activity of this protein, which can be an activator or a repressor. Three transcript variants encoding different isoforms have been found for this gene.
- Synonyms
- Transcription factor Sp1; SP1; TSFP1
- Gene Name
- transcription factor
- Gene ID
- 6667
- UniProt
- P08047
- Host
- Rabbit
- Reactivity
- Human,Mouse,Rat
- Cross Reactivity
- No cross-reactivity with other proteins.
- Immunogen
- E. coli-derived human SP1 recombinant protein (Position: Q384-A603).
- Clonality
- Polyclonal
- Tissue Specificity
- Up-regulated in adenocarcinomas of the stomach (at protein level). Isoform 3 is ubiquitously expressed at low levels.
- Applications
- ELISA,Flow Cytometry,IF,IHC,ICC,WB
- Purification
- Immunogen affinity purified.
- Concentration
- Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
- Form
- Lyophilized
- Reconstitution
- Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
- Function
- Transcription factor that can activate or repress transcription in response to physiological and pathological stimuli. Binds with high affinity to GC-rich motifs and regulates the expression of a large number of genes involved in a variety of processes such as cell growth, apoptosis, differentiation and immune responses. Highly regulated by post-translational modifications (phosphorylations, sumoylation, proteolytic cleavage, glycosylation and acetylation). Binds also the PDGFR- alpha G-box promoter. May have a role in modulating the cellular response to DNA damage. Implicated in chromatin remodeling. Plays a role in the recruitment of SMARCA4/BRG1 on the c-FOS promoter. Plays an essential role in the regulation of FE65 gene expression. In complex with ATF7IP, maintains telomerase activity in cancer cells by inducing TERT and TERC gene expression. Isoform 3 is a stronger activator of transcription than isoform 1. Positively regulates the transcription of the core clock component ARNTL/BMAL1.
- Components
- Each vial contains 4 mg Trehalose, 0.9 mg NaCl and 0.2 mg Na2HPO4.
- References & Citations
- 1. Gaynor, R. B., Shieh, B.-H., Klisak, I., Sparkes, R. S., Lusis, A. J.Localization of the transcription factor SP1 gene to human chromosome 12q12-q13.2.Cytogenet. Cell Genet. 64: 210-212, 1993.
2. Matera, A. G., Ward, D. C.Localization of the human Sp1 transcription factor gene to 12q13 by fluorescence in situ hybridization.Genomics 17: 793-794, 1993.
3. Wimmer, E. A., Jackle, H., Pfeifle, C., Cohen, S. M.A Drosophila homologue of human Sp1 is a head-specific segmentation gene.Nature 366: 690-694, 1993.Wimmer, E. A., Jackle, H., Pfeifle, C., Cohen, S. M.A Drosophila homologue of human Sp1 is a head-specific segmentation gene.Nature 366: 690-694, 1993.
- Storage Conditions
- Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles.
- Calculated Molecular Weight
- 33275 MW
- Observed Molecular Weight
- 90 kDa
- Fragment
- Rabbit IgG
- Specificity
- No cross reactivity with other proteins.
- Applications Notes
- Western blot, 0.1-0.5μg/ml<br>
Immunohistochemistry (Paraffin-embedded Section), 2-5μg/ml<br>
Immunocytochemistry/Immunofluorescence, 5μg/ml<br>
Immunofluorescence, 5μg/ml<br>
Flow Cytometry(Fixed), 1-3 μg/1x10<sup>6</sup> cells<br>
ELISA, 0.1-0.5μg/ml<br>
- Subcellular Location
- Nucleus. Cytoplasm. Nuclear location is governed by glycosylated/phosphorylated states. Insulin promotes nuclear location, while glucagon favors cytoplasmic location.
- Protein Name
- Programmed cell death 1 ligand 1