Date published: 2026-3-17

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NELF-D Inhibitors

NELF-D inhibitors belong to a distinctive chemical class that plays a crucial role in modulating gene expression and transcriptional regulation within cells. NELF-Dstands for Negative Elongation Factor D, which is a subunit of the NELF complex. The NELF complex, composed of four subunits, functions as a key regulator of RNA polymerase II-mediated transcription elongation. Transcription elongation is a critical step in the process of gene expression, where the RNA polymerase II enzyme synthesizes an RNA strand complementary to the DNA template. NELF-D inhibitors specifically target the NELF complex, with a primary focus on disrupting the negative regulation it imposes on transcriptional elongation. NELF-D inhibitors involves interference with the interactions between NELF-D and other subunits within the NELF complex. By inhibiting the function of NELF-D, these compounds effectively promote transcriptional elongation, allowing RNA polymerase II to progress along the DNA template and facilitate the synthesis of messenger RNA (mRNA). This modulation of gene expression has potential implications for influencing cellular processes and responses. The development and study of NELF-D inhibitors contribute to a deeper understanding of the intricate regulatory mechanisms governing transcriptional processes, providing valuable insights into the molecular events that govern gene expression and cellular function.

Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Triptolide

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

Triptolide inhibits the transcriptional activity of RNA polymerase II, thereby indirectly affecting the function of NELFCD, which is part of the NELF complex that regulates RNA polymerase II activity.

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)

DRB is a potent inhibitor of the positive transcription elongation factor b (P-TEFb), which phosphorylates RNA polymerase II and counteracts the negative effects of NELF. By inhibiting P-TEFb, DRB can indirectly increase NELFCD-mediated transcriptional pause.

Flavopiridol

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

Flavopiridol inhibits CDK9, a component of P-TEFb, leading to reduced phosphorylation of RNA polymerase II and increased transcriptional pausing, where NELFCD is involved.

α-Amanitin

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

Alpha-amanitin binds to and inhibits RNA polymerase II. This binding leads to an indirect effect on NELFCD as it disrupts the elongation phase of transcription where NELFCD functions.

I-BET 151 Hydrochloride

1300031-49-5 (non HCl Salt)sc-391115
10 mg
$450.00
2
(0)

I-BET151 is a BET bromodomain inhibitor that displaces BET proteins from chromatin, affecting transcription regulation and potentially increasing the influence of NELFCD on transcriptional pausing.

(±)-JQ1

1268524-69-1sc-472932
sc-472932A
5 mg
25 mg
$231.00
$863.00
1
(0)

JQ1 is another BET bromodomain inhibitor that competes with acetyl-lysine recognition motifs on histones, which could indirectly enhance the activity of NELFCD in transcriptional pausing by altering chromatin structure.

Pladienolide B

445493-23-2sc-391691
sc-391691B
sc-391691A
sc-391691C
sc-391691D
sc-391691E
0.5 mg
10 mg
20 mg
50 mg
100 mg
5 mg
$299.00
$5699.00
$11099.00
$25500.00
$66300.00
$2875.00
63
(2)

Pladienolide B binds to the spliceosome, potentially influencing post-transcriptional modifications and the transcription elongation process where NELFCD is active.

5-Chloro-2-methyl-4-isothiazolin-3-one (CMI/MI > 2.0)

26172-55-4sc-352647
sc-352647A
sc-352647B
5 g
25 g
100 g
$94.00
$206.00
$501.00
5
(1)

Isothiazolones like this one can inhibit various transcription factors and may indirectly affect transcription elongation and pausing involving NELFCD. Specific CAS numbers are not available as this refers to a class of compounds.

Hesperadin

422513-13-1sc-490384
10 mg
$304.00
(0)

Hesperadin inhibits Aurora B kinase, which can indirectly affect transcription regulation and elongation processes involving NELFCD.

2-Indolone

59-48-3sc-220742
5 g
$205.00
(0)

Oxindole inhibits CDKs and could indirectly impact transcription elongation and the activity of NELFCD within the NELF complex.