Date published: 2026-5-9

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ORC3 Inhibitors

ORC3 inhibitors belong to a specific chemical class of compounds that target the ORC3 protein, a key component of the Origin Recognition Complex (ORC). The ORC is a crucial factor in the initiation of DNA replication in eukaryotic cells. The process of DNA replication is vital for the accurate duplication of the genetic material during cell division. ORC3 inhibitors are designed to modulate the activity of the ORC3 protein, ultimately interfering with the initiation of DNA replication. By disrupting this essential cellular process, these inhibitors have the potential to impact cell growth and division. The ORC3 protein is involved in the formation of a multi-subunit complex known as the ORC, which binds to specific DNA sequences called origins of replication. This binding event marks the starting point for DNA replication during the cell cycle. ORC3 inhibitors are believed to exert their effects by binding to the ORC3 protein and interfering with its function, thus preventing the proper assembly and activation of the ORC complex at DNA replication origins. As a consequence, the replication process is disrupted, leading to a potential halt in cell proliferation. The development and study of ORC3 inhibitors are of great interest to researchers and scientists in the fields of molecular biology, biochemistry, and medicinal chemistry. By understanding the interactions between these inhibitors and the ORC3 protein, scientists hope to gain insights into the fundamental mechanisms governing DNA replication and cell division. Furthermore, the investigation of ORC3 inhibitors may shed light on novel approaches for modulating cellular processes and provide potential avenues for future research in various biological contexts. It is important to note that the chemical class of ORC3 inhibitors is still an active area of research, and their full potential and implications are yet to be fully elucidated. Nevertheless, the study of ORC3 inhibitors offers exciting prospects for advancing our understanding of DNA replication regulation and its relevance to cellular biology.
Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

XL413

1169562-71-3sc-474909
5 mg
$275.00
(0)

This small molecule inhibitor targets the protein kinase activity of CDC7, which is required for proper function of ORC3 during DNA replication.

SNS-032

345627-80-7sc-364621
sc-364621A
5 mg
10 mg
$169.00
$262.00
(1)

Originally developed as a CDK9 inhibitor, SNS-032 has been found to inhibit CDC7, affecting the function of ORC3 and DNA replication.

Polo-like Kinase Inhibitor III

660868-91-7sc-203202
500 µg
$109.00
1
(0)

This compound is a potent CDC7 inhibitor that can indirectly inhibit ORC3 function.

KW 2449

1000669-72-6sc-364518
sc-364518A
10 mg
50 mg
$180.00
$744.00
(0)

Originally developed as a dual inhibitor of FLT3 and ABL kinases, KW-2449 has been found to inhibit CDC7 and disrupt DNA replication initiation.