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Protein / target

Enoyl-[acyl-carrier-protein] reductase [NADH]

inhAP9WGR1Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Swiss-Prot
30
Clinical trials
2
Drugs targeting

Protein at a glance

Biological role

Enoyl-[acyl-carrier-protein] reductase (NADH)

Derived from structured UniProt, Open Targets and literature data on this page.

Protein profile

UniProt 2026_02

Canonical identity and biological annotation from UniProt.

Function overview

Enoyl-ACP reductase of the type II fatty acid syntase (FAS-II) system, which is involved in the biosynthesis of mycolic acids, a major component of mycobacterial cell walls.

View complete UniProt function annotation

Enoyl-ACP reductase of the type II fatty acid syntase (FAS-II) system, which is involved in the biosynthesis of mycolic acids, a major component of mycobacterial cell walls (PubMed:25227413). Catalyzes the NADH-dependent reduction of the double bond of 2-trans-enoyl-[acyl-carrier protein], an essential step in the fatty acid elongation cycle of the FAS-II pathway (PubMed:7599116). Shows preference for long-chain fatty acyl thioester substrates (>C16), and can also use 2-trans-enoyl-CoAs as alternative substrates (PubMed:7599116). The mycobacterial FAS-II system utilizes the products of the FAS-I system as primers to extend fatty acyl chain lengths up to C56, forming the meromycolate chain that serves as the precursor for final mycolic acids (PubMed:25227413)

Domains and Gene Ontology detail (9)

Gene Ontology

  • Cpeptidoglycan-based cell wall
  • Cplasma membrane
  • Fenoyl-[acyl-carrier-protein] reductase (NADH) activity
  • Ffatty acid binding
  • FNAD+ binding
  • Ftrans-2-enoyl-CoA reductase (NADH) activity
  • Pfatty acid elongation
  • Pmycolic acid biosynthetic process
  • Presponse to antibiotic

269 aa · 29 kDa

Biological roles

What this protein does, drawn together from its UniProt function, Gene Ontology terms and Reactome pathways.

Lipid & lipoprotein metabolismUniProt · GO
View supporting evidence

Lipid & lipoprotein metabolism

  • ·Enoyl-ACP reductase of the type II fatty acid syntase (FAS-II) system, which is involved…
  • ·fatty acid binding
  • ·fatty acid elongation

Concepts derived from UniProt GO Reactome — each badge above shows which sources supported that role.

Approved medicines with mapped indications

2 medicines · 3 areas

Approved therapies targeting this protein, grouped by what they are approved to treat — the disease-first view of the medicines below. Relationships come from the canonical approved-indication graph (ChEMBL phase-4), the same source as the drug cards.

Tuberculosis2 medicines
HIV Infections1 medicine
Tuberculosis, Pulmonary1 medicine

Approved indications from ChEMBL (phase-4), via the canonical drug→disease graph.

Drugs targeting this protein

2

How approved and investigational drugs engage this protein — mechanism and action type, direct vs complex targeting, and how broadly each acts across other targets. A drug-first view (the section above groups the approved ones disease-first); direct binders with few recorded targets are listed first.

Isoniazid
Narrow target profileInhibitor

Enoyl-[acyl-carrier-protein] reductase inhibitor

Indicated for HIV Infections, Tuberculosis, Tuberculosis, Pulmonary

Direct interaction with this protein · Only this protein recorded as a target

Ethionamide
Narrow target profileInhibitor

Enoyl-[acyl-carrier-protein] reductase inhibitor

Indicated for Tuberculosis

Direct interaction with this protein · Only this protein recorded as a target

ChEMBL mechanism, action type, target identity and approved indications. Open Targets clinical status.

Clinical trials

30

Trials of drugs that target this protein — reached indirectly through those drugs, so a trial listed here studies the drug, not the protein. Ranked by active status, then clinical phase and recency, and spread across the targeting drugs.

View all trials (26)

RECRUITING · via Isoniazid · NCT06253715

NOT_YET_RECRUITING · via Isoniazid · NCT07595042

COMPLETED · via Isoniazid · NCT04830462

ClinicalTrials.gov via the drug-target graph.

What's happening now

7

Recent therapeutic activity around this target — regulatory actions, clinical trials and safety signals for a drug that targets this protein, plus publications where such a drug is a genuine subject. Every item is reached indirectly through the drug, not the protein itself; incidental mentions (a paper that merely measures a drug) and press items are excluded.

  1. Trial status changed2026-08-25

    Co-SAM: An Adaptive Multi-arm Trial to Improve Clinical Outcomes Among Children Recovering From Complicated Severe Acute Malnutrition

    Status changed to Completed · ClinicalTrials.gov · via Isoniazid

  2. Trial results posted2026-08-12

    A Multicenter, Phase 2b/c, Open-label, Randomized, Dose-finding Trial to Evaluate the Safety and Efficacy of a 4 Month Regimen of OPC-167832 in Combination With Delamanid and Bedaquiline in Subjects With Drug-susceptible Pulmonary Tuberculosis in Comparison With Standard Treatment

    Results posted · ClinicalTrials.gov · via Isoniazid

  3. New publication2024-03-28
    Estimation of country-specific tuberculosis resistance antibiograms using pathogen genomics and machine learning.

    BMJ global health · 2024 · 4 citations · Europe PMC · via Isoniazid

  4. New publication2022-12-01
    Cumulative Mycobacterium tuberculosis Infection Incidence (Measured Primarily by Tuberculin Skin Test) Among Infants With Human Immunodeficiency Virus Exposure: Observational Follow-up of an Isoniazid Prophylaxis Trial.

    Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022 · 3 citations · Europe PMC · via Isoniazid

  5. New publication2013-03-07
    Pregnancy outcomes in HIV-infected women receiving long-term isoniazid prophylaxis for tuberculosis and antiretroviral therapy.

    Infectious diseases in obstetrics and gynecology · 2013 · 36 citations · Europe PMC · via Isoniazid

  6. New publication2011-04-25
    Risk factors for non-adherence and loss to follow-up in a three-year clinical trial in Botswana.

    PloS one · 2011 · 40 citations · Europe PMC · via Isoniazid

  7. New publication2011-04-12
    6-month versus 36-month isoniazid preventive treatment for tuberculosis in adults with HIV infection in Botswana: a randomised, double-blind, placebo-controlled trial.

    Lancet (London, England) · 2011 · 252 citations · Europe PMC · via Isoniazid

Objective event titles are shown unmodified; the event kind and significance line are derived from structured fields. Forefront AttentionEvent stream aggregating Europe PMC Regulatory filings ClinicalTrials.gov.