Date published: 2026-1-12

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Rnr1 Inhibitors

Rnr1 inhibitors belong to a specific chemical class characterized by their ability to target and inhibit the activity of ribonucleotide reductase (RNR) subtype Rnr1. RNR enzymes play a crucial role in the process of DNA synthesis by converting ribonucleotides into deoxyribonucleotides, which are essential building blocks for DNA replication and repair. Rnr1, as one of the key subunits of RNR, serves as a primary target for these inhibitors. By binding to the active site of Rnr1, these compounds disrupt the enzymatic activity, thereby impeding the conversion of ribonucleotides to deoxyribonucleotides. Rnr1 inhibitors are characterized by their distinct chemical structures that are specifically designed to interact with the catalytic site of the enzyme. This interaction hinders the critical steps of the enzymatic reaction, ultimately leading to a reduction in the pool of available deoxyribonucleotides for DNA synthesis. Consequently, the inhibition of Rnr1 activity disrupts cellular proliferation and DNA repair mechanisms, rendering these compounds of significant interest in various scientific research areas.

Due to the importance of RNR enzymes in fundamental cellular processes, Rnr1 inhibitors are widely studied in various fields of biology and biochemistry. They have proven invaluable in elucidating the mechanisms of DNA synthesis and cell proliferation. Understanding the mode of action of these inhibitors has paved the way for innovative approaches in genetic research, cell biology, and molecular pharmacology. Additionally, these inhibitors have served as powerful tools in uncovering the underlying biology of DNA replication and repair pathways, leading to a more profound comprehension of cellular homeostasis and genome stability. Overall, Rnr1 inhibitors represent a crucial class of chemical compounds that exert their effects through the specific inhibition of ribonucleotide reductase subtype Rnr1. By hindering this essential enzymatic process, these inhibitors have made significant contributions to scientific understanding. Their relevance in various research fields continues to shape our knowledge of fundamental cellular processes and DNA metabolism.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Hydroxyurea

127-07-1sc-29061
sc-29061A
5 g
25 g
$78.00
$260.00
18
(1)

Hydroxyurea disrupts the enzyme's activity and decreases the production of deoxyribonucleotides.

2′-Deoxy-2′,2′-difluorocytidine

95058-81-4sc-275523
sc-275523A
1 g
5 g
$56.00
$128.00
(1)

Gemcitabine functions as a nucleoside analogue, incorporating into DNA and interfering with RNR1 activity, leading to reduced DNA synthesis in cancer cells.

1-β-D-Arabinofuranosylcytosine

147-94-4sc-201628
sc-201628A
sc-201628B
sc-201628C
sc-201628D
1 g
5 g
25 g
100 g
250 g
$150.00
$263.00
$518.00
$731.00
$1461.00
1
(1)

1-β-D-Arabinofuranosylcytosine interferes with DNA synthesis by inhibiting RNR1.

Fludarabine

21679-14-1sc-204755
sc-204755A
5 mg
25 mg
$58.00
$204.00
15
(1)

Fludarabine is a purine nucleoside analogue. It inhibits RNR1, leading to decreased DNA synthesis and cell proliferation.

Triapine

200933-27-3sc-475303
10 mg
$300.00
(0)

Triapine works by binding to the enzyme's active site and blocking its function.

Ancitabine

31698-14-3sc-278703
sc-278703A
2 g
5 g
$316.00
$527.00
(0)

Ancitabine is a nucleoside analog that inhibits RNR1 and has been explored for its anticancer properties.

Teniposide

29767-20-2sc-204910
sc-204910A
25 mg
100 mg
$73.00
$235.00
6
(1)

Teniposide inhibits topoisomerase II, an enzyme involved in DNA replication. Its effects on DNA can indirectly impact RNR1 activity and deoxyribonucleotide production.

Methotrexate

59-05-2sc-3507
sc-3507A
100 mg
500 mg
$94.00
$213.00
33
(5)

Methotrexate is an antimetabolite that interferes with DNA synthesis by inhibiting dihydrofolate reductase, which is essential for the synthesis of tetrahydrofolate, a coenzyme involved in nucleotide synthesis.