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MS
unreviewed

Uroporphyrinogen III synthase (UROS)

1 reactions · 1 pathways

What it does, reaction by reaction

1 reactions

Heme Biosynthesis (Porphyrin Pathway) Amino Acid & Nitrogen Metabolism · Mitochondrion + cytosol

step 4 Irreversible/directional

Hydroxymethylbilane → uroporphyrinogen III

Converts Hydroxymethylbilane into Uroporphyrinogen III

› Notes

Uroporphyrinogen III synthase (UROS) cyclizes and inverts ring D to form the asymmetric type III isomer. Without UROS, hydroxymethylbilane can spontaneously cyclize to uroporphyrinogen I, which cannot proceed efficiently to heme.

Showing all 1 reactions.

What accelerates and inhibits it

Regulation is pathway-specific, so each context is listed separately

0 entries

No regulation recorded for this enzyme in the source documents.

Recent literature

Europe PMC · fetched just now · sorted by publication date

  1. 1
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    The extremophile Chlamydomonas acidophila PM01 survives high manganese contamination by restricting non-vacuolar intracellular content.

    Santrač I, Dimitrijević M, Žižić M, Stanić M, Ćurić V, Bonanni V, Gianoncelli A, Aquilanti G, Stani C, Birard… · 2026-07-27

    unreviewed
  3. 3
    Discovery of ALA-hydroxypyridinone hybrids: novel strategies for photodynamic therapy against superficial tumours.

    Jiang X, Feng M, Niu X, Wang S, Sun Y, Chen W, Bai R. · 2026-07-08

    open access unreviewed
  4. 4
    Proteomic Mendelian randomization and machine learning reveal causal plasma biomarkers in cardiorenal comorbidity.

    Huang H, Liu W, Yan Y, Cao J, Wang J, Fang C. · 2026-06-16

    open access unreviewed
  5. 5
    Weaving braids of defect lines.

    Tkalec U, Čopar S. · 2026-10-01

    unreviewed
  6. 6
    Sequential TKI Treatment in Patients With Chronic Phase Chronic Myeloid Leukemia Resistant to Frontline Nilotinib or Dasatinib Therapy. A Real-Life Survey From the Italian Campus CML Network.

    Gugliotta G, Annunziata M, Capodanno I, Rapezzi D, Attolico I, Caramella M, Vincelli ID, Rossi AR, Tiribelli … · 2026-07-24

    unreviewed
  7. 7
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  9. 9
    Declining ribosome function limits oocyte longevity

    · 2026-09-30

    open access unreviewed
  10. 10

External claims. These come from an index outside this database and are not checked against it. Treat them as leads.