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CompoundsSubstances with curated findings
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ReactionsRhea and Human-GEM, by subsystem
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Reference

Evidence

Compounds
Outcomes
Proteins
Interactions
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Articles

Chemistry

Reactions
Reach

Reference layer

Pathways
Processes
Anatomy
Cell types
Organisms
Materials
Assessments
Diseases

Atlas Graph Twin Access

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Computational infrastructure for human biology, built on a provenance-aware knowledge graph. Findings retain their sources; research and simulation are the next layers.

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A reference for what the literature reports. Not medical advice.

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allantoin

362,296 routes · scope human · up to 3 steps · built 5 October 2026 · Reactions · API

Inferred

Every route here is a hypothesis drawn from reference reactions (Rhea and Human-GEM), not a finding. Currency species such as water, ATP and NAD(H) never form a step. Evidence key

5 compounds within 3 steps: 1 in 1, 2 in 2, 2 in 3

Does it reach a compound?

One step

allantoic acidReach from here →
1. (S)-allantoin amidohydrolase
No catalyst recordedcytosol

Two steps

(-)-ureidoglycolic acidReach from here →
1. (S)-allantoin amidohydrolase
2. Allantoate amidinohydrolase
Catalysed by ALLCcytosol
ureaReach from here →
1. (S)-allantoin amidohydrolase
2. Allantoate amidinohydrolase
Catalysed by ALLCcytosol

Three steps

cyanamideReach from here →
Catalysed by ALLC, CA1, CA2cytosol
urateReach from here →
Catalysed by ALLC, MPOcytosol, nucleusOne of 3 routes