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Protein / target

DNA polymerase catalytic subunit

P04293Human herpesvirus 1 (strain 17)Swiss-Prot
30
Clinical trials
3
Drugs targeting

Protein at a glance

Biological role

DNA-directed DNA polymerase

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

Replicates viral genomic DNA.

View complete UniProt function annotation

Replicates viral genomic DNA. The replication complex is composed of six viral proteins: the DNA polymerase, processivity factor, primase, primase-associated factor, helicase, and ssDNA-binding protein. Additionally, the polymerase contains an intrinsic ribonuclease H (RNase H) activity that specifically degrades RNA/DNA heteroduplexes or duplex DNA substrates in the 5' to 3' direction. Therefore, it can catalyze the excision of the RNA primers that initiate the synthesis of Okazaki fragments at a replication fork during viral DNA replication

Subcellular location

Host nucleus
Domains and Gene Ontology detail (10)

Gene Ontology

  • CDNA polymerase complex
  • Chost cell nucleus
  • F5'-3' exonuclease activity
  • FDNA binding
  • FDNA polymerase activity
  • FDNA-directed DNA polymerase activity
  • Fnucleotide binding
  • FRNA-DNA hybrid ribonuclease activity
  • Pbidirectional double-stranded viral DNA replication
  • PDNA-templated DNA replication

1235 aa · 136 kDa

Approved medicines with mapped indications

3 medicines · 5 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.

Eye Infections3 medicines
Virus Diseases3 medicines
Chickenpox1 medicine
Herpes Zoster1 medicine
HIV Infections1 medicine

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

Drugs targeting this protein

3

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.

Ganciclovir
Narrow target profileInhibitor

Human herpesvirus 1 DNA polymerase inhibitor

Indicated for Eye Infections, HIV Infections, Virus Diseases

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

Vidarabine
Narrow target profileInhibitor

Human herpesvirus 1 DNA polymerase inhibitor

Indicated for Eye Infections, Virus Diseases

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

acyclovir
Narrow target profileInhibitor

Human herpesvirus 1 DNA polymerase inhibitor

Indicated for Chickenpox, Eye Infections, Herpes Zoster, Virus Diseases

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)

NOT_YET_RECRUITING · via Ganciclovir · NCT06971913

COMPLETED · via acyclovir · NCT03831165

COMPLETED · via acyclovir · NCT02255734

COMPLETED · via Ganciclovir · NCT00000894

ClinicalTrials.gov via the drug-target graph.

What's happening now

12

Recent therapeutic activity around this target — regulatory actions, clinical trials and safety signals for 2 drugs that target 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. Label change2026-09-03

    Label change: ACYCLOVIR (ANDA202168)

    fda · regulatory · fda · via acyclovir

  2. Label change2026-08-11

    Label change: ACYCLOVIR (ANDA215724)

    fda · regulatory · fda · via acyclovir

  3. Label change2026-07-02

    Label change: ACYCLOVIR (ANDA212252)

    fda · regulatory · fda · via acyclovir

  4. Label change2026-07-01

    Label change: ACYCLOVIR (ANDA074738)

    fda · regulatory · fda · via acyclovir

  5. Label change2026-07-01

    Label change: ACYCLOVIR (ANDA212718)

    fda · regulatory · fda · via acyclovir

  6. Label change2026-07-01

    Label change: ACYCLOVIR (ANDA213951)

    fda · regulatory · fda · via acyclovir

  7. Label change2026-07-01

    Label change: ACYCLOVIR (ANDA215669)

    fda · regulatory · fda · via acyclovir

  8. Label change2026-07-01

    Label change: ACYCLOVIR (ANDA216331)

    fda · regulatory · fda · via acyclovir

  9. New publication2024-02-01
    CD19 CAR T-Cell Therapy in Autoimmune Disease - A Case Series with Follow-up.

    The New England journal of medicine · 2024 · 704 citations · Europe PMC · via Vidarabine

  10. New publication2020-04-01
    KTE-X19 CAR T-Cell Therapy in Relapsed or Refractory Mantle-Cell Lymphoma.

    The New England journal of medicine · 2020 · 1,377 citations · Europe PMC · via Vidarabine

  11. New publication2018-12-02
    Long-term safety and activity of axicabtagene ciloleucel in refractory large B-cell lymphoma (ZUMA-1): a single-arm, multicentre, phase 1-2 trial.

    The Lancet. Oncology · 2019 · 1,761 citations · Europe PMC · via Vidarabine

  12. New publication2008-09-22
    Adoptive cell therapy for patients with metastatic melanoma: evaluation of intensive myeloablative chemoradiation preparative regimens.

    Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2008 · 1,043 citations · Europe PMC · via Vidarabine

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.