生物源
human
重組細胞
expressed in E. coli
化驗
≥80% (SDS-PAGE)
形狀
frozen liquid
分子量
~59 kDa
包裝
pkg of 10 μg
儲存條件
avoid repeated freeze/thaw cycles
濃度
200 μg/mL
技術
western blot: suitable
顏色
clear colorless
NCBI登錄號
UniProt登錄號
運輸包裝
dry ice
儲存溫度
−70°C
基因資訊
human ... GTF2F1(2962)
生化/生理作用
The transcription factor IIF (TFIIF) is composed of 58 kDa (RAP74) and 26 kDa (RAP30) subunits that form a heterodimer, and was first identified through the ability to interact with immobilized RNA polymerase II. In addition to its role in transcription initiation, TFIIF can increase the specificity and efficiency of RNA polymerase II transcription, and can especially increase the rate of transcription elongation.
外觀
Clear and colorless frozen liquid solution
準備報告
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. While working, please keep sample on ice.
儲存類別代碼
10 - Combustible liquids
水污染物質分類(WGK)
WGK 1
閃點(°F)
Not applicable
閃點(°C)
Not applicable
O Flores et al.
The Journal of biological chemistry, 264(15), 8913-8921 (1989-05-25)
The purification and characterization of transcription factor IIF (TFIIF), a factor required for transcription by the RNA polymerase II machinery, is described. TFIIF was isolated from the previously described IIE protein fraction. TFIIF enters into the transcription cycle via a
M Sopta et al.
The Journal of biological chemistry, 260(18), 10353-10360 (1985-08-25)
We have used affinity chromatography on columns containing immobilized calf thymus RNA polymerase II to isolate three phosphoproteins (RAP72, RAP38, and RAP30) that bind directly to RNA polymerase II. All could be isolated from cell nuclei, and all three could
M Sopta et al.
Nature, 341(6241), 410-414 (1989-10-05)
RAP30/74 is a heteromeric general transcription initiation factor which binds to RNA polymerase II. Here we report that preparations of RAP30/74 contain an ATP-dependent DNA helicase whose probable function is to melt the DNA at transcriptional start sites. The sequence
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