Date published: 2026-5-16

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TFIIF RAP 74 Inhibitors

TFIIF RAP 74 inhibitors belong to a specialized class of chemical compounds that exert their effects at the molecular level within cells. TFIIF, or Transcription Factor IIF, is a crucial component of the RNA polymerase II transcription initiation complex, playing a pivotal role in the regulation of gene expression. RAP 74, also known as the subunit Rpb4/7, is an integral part of RNA polymerase II and is essential for transcription initiation and elongation. Inhibitors targeting the TFIIF RAP 74 interaction interfere with the normal functioning of these transcriptional machinery components, disrupting the intricate orchestration of gene transcription.

TFIIF RAP 74 inhibitors involves binding to specific sites on either TFIIF or RAP 74, impeding their interaction and subsequent formation of the functional transcription initiation complex. By disrupting this complex, these inhibitors hinder the accurate and timely initiation of RNA synthesis, a process crucial for the synthesis of mRNA from DNA templates. The specificity of TFIIF RAP 74 inhibitors for their target sites underscores their potential as valuable tools for investigating the intricacies of transcriptional regulation. Researchers use these inhibitors in experimental settings to gain insights into the fundamental processes governing gene expression, unraveling the molecular nuances of transcription initiation and elongation. The study and manipulation of these inhibitors contribute significantly to advancing our understanding of the complex molecular machinery that governs gene transcription, paving the way for potential applications in basic research and molecular biology studies.

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Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

α-Amanitin

23109-05-9sc-202440
sc-202440A
1 mg
5 mg
$269.00
$1050.00
26
(2)

A potent inhibitor of RNA polymerase II, which can indirectly affect TFIIF RAP74 by inhibiting the polymerase it regulates.

Triptolide

38748-32-2sc-200122
sc-200122A
1 mg
5 mg
$90.00
$204.00
13
(1)

A diterpene triepoxide that can inhibit the transcriptional activity by affecting the assembly of transcription factor complexes, potentially influencing TFIIF RAP74's role.

DRB

53-85-0sc-200581
sc-200581A
sc-200581B
sc-200581C
10 mg
50 mg
100 mg
250 mg
$43.00
$189.00
$316.00
$663.00
6
(1)

A compound that inhibits transcription initiation by targeting the phosphorylation of the RNA polymerase II C-terminal domain, thereby impacting TFIIF RAP74 function.

Actinomycin D

50-76-0sc-200906
sc-200906A
sc-200906B
sc-200906C
sc-200906D
5 mg
25 mg
100 mg
1 g
10 g
$74.00
$243.00
$731.00
$2572.00
$21848.00
53
(3)

Binds to DNA and prevents the transcription elongation process, which could indirectly affect the transcription factor complex involving TFIIF RAP74.

Flavopiridol

146426-40-6sc-202157
sc-202157A
5 mg
25 mg
$78.00
$259.00
41
(3)

A cyclin-dependent kinase inhibitor that impedes the phosphorylation of RNA polymerase II, indirectly affecting TFIIF RAP74 activity.

Cordycepin

73-03-0sc-203902
10 mg
$101.00
5
(1)

An adenosine analog that disrupts RNA synthesis and therefore may impact TFIIF RAP74 by inhibiting its associated RNA polymerase II.

Roxithromycin

80214-83-1sc-205845
sc-205845A
1 g
5 g
$52.00
$156.00
(1)

A macrolide antibiotic that has been shown to interfere with the formation of the transcription initiation complex, thus potentially affecting TFIIF RAP74.

ICRF-193

21416-68-2sc-200889
sc-200889A
1 mg
5 mg
$341.00
$927.00
7
(1)

A bisdioxopiperazine that interferes with the function of topoisomerase II, an enzyme involved in transcription, indirectly affecting TFIIF RAP74.

Leptomycin B

87081-35-4sc-358688
sc-358688A
sc-358688B
50 µg
500 µg
2.5 mg
$107.00
$416.00
$1248.00
35
(2)

Inhibits the export of RNA, thereby potentially influencing the overall transcription process that TFIIF RAP74 is a part of.

Camptothecin

7689-03-4sc-200871
sc-200871A
sc-200871B
50 mg
250 mg
100 mg
$58.00
$186.00
$94.00
21
(2)

Targets DNA topoisomerase I, thereby affecting the transcription process on a broader scale, which could indirectly influence TFIIF RAP74.