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Reference

Evidence

CompoundsSubstances with curated findings
OutcomesMeasured endpoints
ProteinsTransporters and enzymes
InteractionsPairs that share biology
PapersEvery paper a finding cites
ArticlesReadings of the evidence

Chemistry

ReactionsRhea and Human-GEM, by subsystem
ReachWhat a compound can become

Reference layer

PathwaysReactions grouped under one name
ProcessesWhat proteins are annotated as doing
AnatomyTissues, by what is expressed there
Cell typesCells, by what is expressed there
OrganismsSpecies a compound is prepared from
MaterialsSubstances that are not one molecule
AssessmentsRegulatory determinations, transcribed
DiseasesFeatures, genes, and where each sits

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Reference

Evidence

Compounds
Outcomes
Proteins
Interactions
Papers
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.

© 2026 CatalystPrivacy TermsReference data under the licences listed on the attribution page.

Index

Pathways

Names from Reactome and WikiPathways

pathways in the graph: 3,812

Filter pathways by name

#a b c d e f g h i j k l m n o p q r s t u v w x y z

98 of 3,812 begin with H

H139Hfs13* PPM1K causes a mild variant of MSUDReactomeR-HSA-9912529
H19 Rb E2F1 and CDK beta catenin in colorectal cancerWikiPathways3969
Hair follicle development cytodifferentiation stage 3 of 3WikiPathways2840
Hair follicle development organogenesis stage 2 of 3WikiPathways2839
Hallmark of cancer metastasis and epithelial to mesenchymal transitionWikiPathways5469

More of the reference layer

Biological processes
Anatomy
Cell types
Organisms
Materials
Regulatory assessments
Diseases

Evidence: Compounds · Outcomes · Papers · Search

Hallmark of cancer non mutational epigenetic reprogramming

WikiPathways5483

Hallmark of cancer sustaining proliferative signalingWikiPathways5475

HATs acetylate histonesReactomeR-HSA-3214847

HCMV Early EventsReactomeR-HSA-9609690

HCMV InfectionReactomeR-HSA-9609646

HCMV Late EventsReactomeR-HSA-9610379

HCN channelsReactomeR-HSA-1296061

HDAC6 interactions in the central nervous systemWikiPathways5426

HDACs deacetylate histonesReactomeR-HSA-3214815

HDL assemblyReactomeR-HSA-8963896

HDL clearanceReactomeR-HSA-8964011

HDL remodelingReactomeR-HSA-8964058

HDMs demethylate histonesReactomeR-HSA-3214842

HDR through Homologous Recombination (HRR)ReactomeR-HSA-5685942

HDR through Homologous Recombination (HRR) or Single Strand Annealing (SSA)ReactomeR-HSA-5693567

HDR through MMEJ (alt-NHEJ)ReactomeR-HSA-5685939

HDR through Single Strand Annealing (SSA)ReactomeR-HSA-5685938

Head and neck squamous cell carcinomaWikiPathways4674

Heart developmentWikiPathways1591

Hedgehog 'off' stateReactomeR-HSA-5610787

Hedgehog 'on' stateReactomeR-HSA-5632684

Hedgehog ligand biogenesisReactomeR-HSA-5358346

Hedgehog signalingWikiPathways4249

Hedgehog signalingWikiPathways47

Hematopoietic stem cell differentiationWikiPathways2849

Hematopoietic stem cell gene regulation by GABP alpha beta complexWikiPathways3657

Heme assimilationReactomeR-HSA-9927020

Heme biosynthesisReactomeR-HSA-189451

Heme biosynthesisWikiPathways561

Heme degradationReactomeR-HSA-189483

Heme signalingReactomeR-HSA-9707616

Hemesynthesis defects and porphyriasWikiPathways5169

Hemoglobin switching embryonic fetal and adultWikiPathways5605

HemostasisReactomeR-HSA-109582

Heparan sulfate/heparin (HS-GAG) metabolismReactomeR-HSA-1638091

Hepatitis B infectionWikiPathways4666

Hepatitis C and hepatocellular carcinomaWikiPathways3646

Hepatocyte growth factor receptor signalingWikiPathways313

Hereditary fructose intoleranceReactomeR-HSA-5657560

Hereditary leiomyomatosis and renal cell carcinoma pathwayWikiPathways4206

Heroin metabolismWikiPathways2645

Hfe effect on hepcidin productionWikiPathways3924

Hh mutants abrogate ligand secretionReactomeR-HSA-5387390

Hh mutants are degraded by ERADReactomeR-HSA-5362768

HHAT G278V doesn't palmitoylate Hh-NpReactomeR-HSA-5658034

HIF1A and PPARG in hypertrophic cardiomyopathyWikiPathways2456

High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cellsReactomeR-HSA-9856530

Highly calcium permeable nicotinic acetylcholine receptorsReactomeR-HSA-629597

Highly calcium permeable postsynaptic nicotinic acetylcholine receptorsReactomeR-HSA-629594

Highly sodium permeable postsynaptic acetylcholine nicotinic receptorsReactomeR-HSA-629587

Hijack of ubiquitination by SARS CoV 2WikiPathways4860

HINT1 pathwayWikiPathways5523

HIPK2 in kidney fibrosisWikiPathways4751

Hippo Merlin signaling dysregulationWikiPathways4541

Hippo signaling regulationWikiPathways4540

Hippo YAP signalingWikiPathways4537

Hippocampal synaptogenesis and neurogenesisWikiPathways5231

Histamine receptorsReactomeR-HSA-390650

Histidine catabolismReactomeR-HSA-70921

Histone modificationsWikiPathways2369

HIV elongation arrest and recoveryReactomeR-HSA-167287

HIV InfectionReactomeR-HSA-162906

HIV Life CycleReactomeR-HSA-162587

HIV Transcription ElongationReactomeR-HSA-167169

HIV Transcription InitiationReactomeR-HSA-167161

HLA C allotypes interactions with KIR on dNK cellsWikiPathways5580

Homologous DNA Pairing and Strand ExchangeReactomeR-HSA-5693579

Homologous recombinationWikiPathways186

Homology Directed RepairReactomeR-HSA-5693538

Hormonal control of pubertal growth spurtWikiPathways4194

Hormone ligand-binding receptorsReactomeR-HSA-375281

Host Interactions of HIV factorsReactomeR-HSA-162909

Host pathogen interaction of human coronaviruses apoptosisWikiPathways4864

Host pathogen interaction of human coronaviruses autophagyWikiPathways4863

Host pathogen interaction of human coronaviruses interferon inductionWikiPathways4880

Host pathogen interaction of human coronaviruses MAPK signalingWikiPathways4877

HS-GAG biosynthesisReactomeR-HSA-2022928

HS-GAG degradationReactomeR-HSA-2024096

HSF1 activationReactomeR-HSA-3371511

HSF1-dependent transactivationReactomeR-HSA-3371571

HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligandReactomeR-HSA-3371497

HSPB3 in Charcot Marie Tooth diseaseWikiPathways5524

Hunger and satietyWikiPathways5445

HuR (ELAVL1) binds and stabilizes mRNAReactomeR-HSA-450520

Hyaluronan degradationReactomeR-HSA-2160916

Hyaluronan metabolismReactomeR-HSA-2142845

Hydrolysis of LPCReactomeR-HSA-1483115

Hydrolysis of LPEReactomeR-HSA-1483152

Hydroxycarboxylic acid-binding receptorsReactomeR-HSA-3296197

Hypothesized pathways in pathogenesis of cardiovascular diseaseWikiPathways3668

Hypothetical craniofacial development pathwayWikiPathways3655

Hypoxia mediated EMT and stemnessWikiPathways2943

Hypusine synthesis from eIF5A-lysineReactomeR-HSA-204626