2. Signaling Pathways
  3. Metabolic Enzyme/Protease
  4. Dihydroorotate Dehydrogenase

Dihydroorotate Dehydrogenase

DHODH

Dihydroorotate Dehydrogenase

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Dihydroorotate dehydrogenase (DHODH) is the fourth enzyme in the de novo pyrimidine biosynthesis pathway, serving as the catalyst to oxidize the dihydroorotate to orotic acid in the biosynthesis of uridine monophosphate (UMP). DHODH is a known target for autoimmune diseases as well as an important target for malaria.

Based on localization and electron acceptor, DHODHs have classified into two families: Family 1 members are soluble proteins localized to the cytosol, while family 2 members are membrane proteins localized to the inner mitochondrial membrane. Family 1 is further subdivided into family 1A and family 1B, which use fumarate and NAD+ (respectively) as electron acceptors. Family 2 DHODH enzymes use respiratory quinones as electron acceptors.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-120462
    Genz-669178
    		Inhibitor
    Genz-669178 is an inhibitor for dihydroorotate dehydrogenase (DHODH) with IC50 of 0.015-0.05 μM in Plasmodium spp.. Genz-669178 inhibits P. berghei, P. falciparum strains 3D7 and Dd2 with IC50 of 0.068, 0.008 and 0.01 μM, respectively. Genz-669178 exhibits anti-malarial efficacy in P. berghei-infected mice with ED50 of 13-21 mg/kg/day. Genz-669178 exhibits good pharmacokinetic characteristics in mice.
    Genz-669178
  • HY-108325S
    Brequinar-d3
    		Inhibitor
    Brequinar-d3 (DUP785-d3) is deuterium labeled Brequinar. Brequinar (DUP785) is a potent inhibitor of dihydroorotate dehydrogenase (DHODH) with an IC50 of 5.2 nM for human DHODH. Brequinar has potent activities against a broad spectrum of viruses. Brequinar also has an anti-SARS2 activity.
    Brequinar-d<sub>3</sub>
  • HY-101813R
    Laflunimus (Standard)
    		Inhibitor
    Laflunimus (Standard) is the analytical standard of Laflunimus. This product is intended for research and analytical applications. Laflunimus (HR325) is an immunosuppressive agent and an analogue of the Leflunomide-active metabolite A77 1726. Laflunimus is an orally active inhibitor of dihydroorotate dehydrogenase (DHODH). Laflunimus suppresses immunoglobulin (Ig) secretion, with IC50 values of 2.5 and 2 μM for IgM and IgG, respectively. Laflunimus also is a prostaglandin endoperoxide H synthase (PGHS) -1 and -2 inhibitor.
    Laflunimus (Standard)
  • HY-169220S
    RORγ/DHODH-IN-1
    		Inhibitor
    RORγ/DHODH-IN-1 (compound 1404), a deuterium labeled compound, is a dual RORγ and DHODH inhibitor with IC50 values of 9.7 nM and 100 nM, repaectively. RORγ/DHODH-IN-1 blocks the replication of SARS-CoV-2, HCMV, and non-enveloped DNA virus (HAdV5).
    RORγ/DHODH-IN-1
  • HY-176280
    SARS-CoV-2-IN-115
    		Inhibitor
    SARS-CoV-2-IN-115 (Compound 3e) is a SARS-CoV-2 inhibitor. SARS-CoV-2-IN-115 has potent antiviral activity against SARS-CoV-2 in infected Calu-3 cells (EC50: 1.7  μM). SARS-CoV-2-IN-115 effectively inhibits the activity of human dihydroorotate dehydrogenase (HsDHODH) (IC50: 1.5  μM). SARS-CoV-2-IN-115 preserves immune response without antiproliferative effects on CD4 T cells .
    SARS-CoV-2-IN-115
  • HY-114215
    DSM-421
    		Inhibitor
    DSM-421 is an orally active Dihydroorotate dehydrogenase inhibitor. DSM-421 has antiplasmodium activity.
    DSM-421
  • HY-170780
    DSM1465
    		Inhibitor
    DSM1465 (Compound 82) is a potent, selective inhibitor of P. falciparum dihydroorotate dehydrogenase (PfDHODH) with an IC50 value of 15 nM, inhibits P. falciparum 3D7 (Pf3D7) parasites with an EC50 value of 1.4 nM. DSM1465 shows potent in vivo activity in the humanized P. falciparum mouse model.
    DSM1465
  • HY-169222S
    RORγ/DHODH-IN-2
    		Inhibitor
    RORγ/DHODH-IN-2 (Compound 1311) is an orally active dual inhibitor of RORγ/DHODH with IC50 values of 11.9 nM and 90 nM, respectively. RORγ/DHODH-IN-2 exhibits antiviral activity by inhibiting the activity of SARS-CoV-2, HCMV, HAdV5, and MPXV, with IC50 values of 27 nM, 20 nM, 9.1 nM, and 1.8 nM, respectively.
    RORγ/DHODH-IN-2
  • HY-N6961R
    Lapachol (Standard)
    		Inhibitor
    Lapachol (Standard) is the analytical standard of Lapachol. This product is intended for research and analytical applications. Lapachol, a natural naphthoquinone, is an orally active, potent DHODH inhibitor. Lapachol has immunosuppressive activity on lymphocytes through its direct ability to block DHODH activity and inhibit pyrimidine synthesis. Lapachol is a vitamin K antagonist with antitumor activity and can inhibit DNA and RNA synthesis in neoplastic cells. Lapachol has anti-Leishmania activity.
    Lapachol (Standard)
  • HY-116736
    BRD7539
    		Inhibitor
    BRD7539 is a PfDHODH inhibitor (IC50 = 0.033 μM). BRD7539 has potent activity against both multidrug-resistant asexual blood-stage (P. falciparum, Dd2 strain, EC50 = 0.010 μM) and liver-stage (P. berghei, EC50 = 0.015 μM) parasites.
    BRD7539
Cat. No. Product Name / Synonyms Application Reactivity