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Cell Signaling Spt4 (D3p2w) Rabbit mAb
List Price $351.00 Your Price $351.00
Cell Signaling Spt4 (D3p2w) Rabbit mAb - CSSPQ (Additional S&H or Hazmat Fees May Apply)
NETA PART: CSSPQ-64828S
MFG.PART: 64828S
UNSPSC: 41106509
Manufacturer: Cell Signaling
| Size | 100 µl |
| Reactivity | H M R Mk |
| Sensitivity | Endogenous |
| Molecular Weight (kDa) | 13 |
| Source/Isotype | Rabbit IgG |
| Application/Dilution | {Western Blotting: 1:1000, Immunoprecipitation: 1:50, Chromatin IP: 1:100, CUT&RUN: 1:50} |
| Storage | Supplied in 10 mm sodium HEPES (pH 7.5), 150 mm NaCl, 100 µg/mL BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody. |
| Specificity/Sensitivity | SPT4 (D3P2W) Rabbit mAb recognizes endogenous levels of total SPT4 protein. |
| Species Reactivity | Human, Mouse, Rat, Monkey |
| Source/Purification | Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human SPT4 protein. |
| Background | DRB-sensitivity inducing factor (DSIF), a heterodimer composed of SPT4 and SPT5, is capable of both facilitating and inhibiting RNA polymerase II (RNAPII) activity (1-3). DSIF, together with NELF (Negative Elongation Factor), inhibits RNAPII elongation, resulting in promoter proximal pausing of RNAPII as it awaits additional signaling to resume transcription (4). The release of promoter proximal pausing is signaled through phosphorylation of the RNAPII C-terminal domain (CTD) and NELF by positive transcription elongation factor (P-TEFb) (5). P-TEFb also phosphorylates SPT5 at Thr4 within the evolutionarily conserved heptapeptide repeat motif. This phosphorylation event switches DSIF from a transcriptional repressor to an activator where it becomes a critical factor for transcriptional elongation (6,7). |
| SKU | CSSPQ-64828S |
|---|---|
| Supplier Part Number | 64828S |
| UM | EA |
| UNSPSC | 41106509 |
| Manufacturer | Cell Signaling |
| MSDS URL | Click here |
| Temperature | -20C |
| CountryOfOrigin | United States |
| ProductLine | CSSPQ |
| Qty | 1 |
| MinOrderQty | 1 |
| Weight | 7.000000 |
| Lead Time | 5 |
| Hazardous | N |
| Energy Star | No |
| Green | No |
| Controlled | N |