Date published: 2025-10-25

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OBFC2B Inhibitors

Chemical inhibitors of OBFC2B can exert their inhibitory effects through interference with DNA replication and repair processes, in which OBFC2B is a key player. Aphidicolin acts by targeting DNA polymerase, a critical enzyme for DNA replication. As OBFC2B is implicated in stabilizing replication forks, the inhibition of DNA polymerase can undermine the protein's functional role by impeding the replication process it is meant to safeguard. Similarly, Etoposide and Mitoxantrone, by stabilizing the DNA topoisomerase II complex in an aberrant state and intercalating into DNA respectively, prevent the ligation of DNA strands and promote DNA breaks. This accumulation of DNA damage indirectly restricts OBFC2B's function in DNA repair as the protein is overwhelmed by the increased demand for repair mechanisms. Camptothecin and Topotecan, both topoisomerase I inhibitors, lead to DNA damage during replication and transcription, further burdening the DNA repair machinery involving OBFC2B.

Actinomycin D, by binding to DNA, prevents RNA synthesis, thereby indirectly inhibiting the nucleoprotein complex formation essential for OBFC2B's role in DNA stability. Amsacrine, Daunorubicin, and Doxorubicin, all function as topoisomerase II inhibitors, which disrupt DNA synthesis and function, leading to an indirect inhibition of OBFC2B's DNA repair and replication activities. Bleomycin introduces DNA strand breaks by generating free radicals, adding to the pool of DNA damage that OBFC2B must process, thereby hindering its function. Hydroxyurea undermines OBFC2B's activity by depleting the pool of deoxyribonucleotides necessary for DNA synthesis, indirectly affecting the protein's involvement in DNA replication. Teniposide, like Etoposide, impedes topoisomerase II, exacerbating DNA damage and thus indirectly inhibiting the DNA repair and stabilization functions of OBFC2B, by causing an overload of DNA lesions that OBFC2B is unable to efficiently repair.

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Items 1 to 10 of 12 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Aphidicolin

38966-21-1sc-201535
sc-201535A
sc-201535B
1 mg
5 mg
25 mg
$82.00
$300.00
$1082.00
30
(3)

Aphidicolin inhibits DNA polymerase, which is essential for DNA replication. By inhibiting DNA replication, it indirectly inhibits OBFC2B's role in DNA replication and repair pathways since OBFC2B is involved in stabilizing replication forks.

Etoposide (VP-16)

33419-42-0sc-3512B
sc-3512
sc-3512A
10 mg
100 mg
500 mg
$32.00
$170.00
$385.00
63
(1)

Etoposide stabilizes the DNA topoisomerase II complex after it breaks the DNA strand for replication, preventing the ligation of the DNA strands. This leads to inhibition of DNA replication and indirectly inhibits OBFC2B function which is involved in DNA repair and replication.

Camptothecin

7689-03-4sc-200871
sc-200871A
sc-200871B
50 mg
250 mg
100 mg
$57.00
$182.00
$92.00
21
(2)

Camptothecin inhibits DNA topoisomerase I, leading to DNA damage during replication. OBFC2B, which plays a role in DNA repair, is indirectly inhibited as the increased DNA damage overwhelms the repair mechanisms.

Actinomycin D

50-76-0sc-200906
sc-200906A
sc-200906B
sc-200906C
sc-200906D
5 mg
25 mg
100 mg
1 g
10 g
$73.00
$238.00
$717.00
$2522.00
$21420.00
53
(3)

Actinomycin D binds to DNA and prevents RNA synthesis by RNA polymerase. This inhibits transcription and indirectly inhibits OBFC2B by limiting the nucleoprotein complex formation it requires for proper function in DNA stabilization.

Mitoxantrone

65271-80-9sc-207888
100 mg
$279.00
8
(1)

Mitoxantrone intercalates into DNA and inhibits topoisomerase II, leading to DNA damage and apoptosis. This indirectly inhibits OBFC2B's function in DNA repair as the damage accrues.

Amsacrine hydrochloride

54301-15-4sc-214540
10 mg
$232.00
(0)

Amsacrine is a topoisomerase II inhibitor that disrupts DNA synthesis and function, indirectly inhibiting OBFC2B's DNA repair and replication activities.

Bleomycin

11056-06-7sc-507293
5 mg
$270.00
5
(0)

Bleomycin causes DNA strand breaks by free radical formation, which indirectly inhibits OBFC2B's role in DNA repair since it is involved in the processing of stalled replication forks.

Daunorubicin hydrochloride

23541-50-6sc-200921
sc-200921A
sc-200921B
sc-200921C
10 mg
50 mg
250 mg
1 g
$103.00
$429.00
$821.00
$1538.00
4
(1)

Daunorubicin intercalates into DNA and inhibits the progression of topoisomerase II, leading to DNA breaks. OBFC2B's function is indirectly inhibited as it is unable to adequately address the increased DNA damage.

Doxorubicin

23214-92-8sc-280681
sc-280681A
1 mg
5 mg
$173.00
$418.00
43
(3)

Doxorubicin intercalates into DNA and disrupts topoisomerase II's DNA-relaxing function, causing DNA damage and indirectly inhibiting OBFC2B's DNA repair function.

Hydroxyurea

127-07-1sc-29061
sc-29061A
5 g
25 g
$76.00
$255.00
18
(1)

Hydroxyurea inhibits ribonucleotide reductase, decreasing the pool of deoxyribonucleotides available for DNA synthesis, indirectly inhibiting OBFC2B activity in DNA replication.