TFIIH, native complex human
SIGMA/SRP2010 - ≥75% (SDS-PAGE)
Product Type: Chemical
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| assay | ≥75% (SDS-PAGE) |
| biological source | human |
| color | clear colorless |
| concentration | 200 μg/mL |
| form | frozen liquid |
| packaging | pkg of 2 μg |
| shipped in | dry ice |
| storage condition | avoid repeated freeze/thaw cycles |
| storage temp. | −70°C |
| UniProt accession no. | A8MX75   |
| Biochem/physiol Actions: | TFIIH is a multicomponent basal transcription factor complex. Nine subunits have been identified within the TFIIH holoenzyme complex. Various enzymatic activities, including DNA repair, helicase, and cyclin-dependent kinase activities, have been reported. The XPB, p62, p52, p44, and p34 subunits are thought to constitute the "core" of the TFIIH transcription machinery. Although the p44 and p34 subunits have no defined enzymatic activity, their zinc finger structures suggest that they may be DNA-binding proteins that might mediate interactions with soluble transcription factors. The cdk-activating kinase (CAK) subcomplex, comprising subunits Cdk7, cyclin H, amd MAT1, phosphorylate several cyclin-dependent kinases (cdks), as well as the carboxy-terminal domain of pol II. Several inherited human disorders such as Xeroderma pigmentosum (XP), Cockayne syndrome (CS) and trichothiodystrophy (TTD) are associated with mutations in TFIIH subunits. |
| Physical form: | Clear and colorless frozen liquid solution |
| Preparation Note: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles. While working, please keep sample on ice. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥75% (SDS-PAGE) |
| Storage Temp. | −70°C |
| UNSPSC | 12352200 |