X-linked Alport syndrome
disease diseaseOn this page
Also known as Alport syndrome 1, X-linked, X-linked dominantAlport syndrome, X-linkedATScongenital hereditary hematuriahemorrhagic familial nephritishemorrhagic hereditary nephritisnephropathy and deafness, X-linked
Summary
X-linked Alport syndrome (MONDO:0010520) is a disease caused by COL4A5 (GenCC Definitive), with 6 cohort genes and 3 clinical trials. The dominant Reactome pathway is Fibronectin matrix formation (3 cohort genes). Top therapeutic interventions include benazepril, hydroxychloroquine, and elx-02.
At a glance
- Prevalence: 1-9 / 100 000 (Sweden) [Orphanet-validated]
- Causal gene: COL4A5 (GenCC Definitive)
- Cohort genes: 6
- ClinVar variants: 1,310
- Clinical trials: 3
Clinical features
Epidemiology
Prevalence records
2 prevalence record(s), Orphanet:
| Type | Class | Value | Geography | Validation |
|---|---|---|---|---|
| Prevalence at birth | 1-9 / 100 000 | 1.25 | Sweden | Validated |
| Point prevalence | 1-9 / 100 000 | Europe | Not yet validated |
Identifiers
Disease identifiers
| Field | Value |
|---|---|
| Canonical name | X-linked Alport syndrome |
| Mondo ID | MONDO:0010520 |
| OMIM | 301050 |
| Orphanet | 88917 |
| DOID | DOID:0110034 |
| SNOMED CT | 717768004 |
| UMLS | C4746986 |
| MedGen | 1648433 |
| GARD | 0016774 |
| MedDRA | 10001843 |
| Is cancer (heuristic) | no |
Also known as: Alport syndrome 1, X-linked, X-linked dominant · Alport syndrome, X-linked · ATS · congenital hereditary hematuria · hemorrhagic familial nephritis · hemorrhagic hereditary nephritis · nephropathy and deafness, X-linked · X-linked Alport syndrome
Data availability: 1,310 ClinVar variants · 4 GenCC gene-disease records.
Disease family
Classification path: disease › human disease › disease by etiologic mechanism › disease of genetic or genomic mechanism › hereditary disease › X-linked disease › X-linked Alport syndrome
Related subtypes (49): X-linked Opitz G/BBB syndrome, X-linked immunoneurologic disorder, X-linked adrenal hypoplasia congenita, X-linked lissencephaly with abnormal genitalia, X-linked severe congenital neutropenia, X-linked distal spinal muscular atrophy type 3, epilepsy, X-linked 1, with variable learning disabilities and behavior disorders, Aland island eye disease, X-linked erythropoietic protoporphyria, X-linked central congenital hypothyroidism with late-onset testicular enlargement, X-linked colobomatous microphthalmia-microcephaly-intellectual disability-short stature syndrome, X-linked acrogigantism due to Xq26 microduplication, Wiskott-Aldrich syndrome, X-linked mandibulofacial dysostosis, X-linked chondrodysplasia punctata, choroideremia, cone dystrophy, X-linked, with tapetal-like sheen, diabetes insipidus, nephrogenic, X-linked, Dyggve-Melchior-Clausen syndrome, X-linked, dyskeratosis congenita, X-linked, X-linked hypohidrotic ectodermal dysplasia, X-linked Ehlers-Danlos syndrome, epidermodysplasia verruciformis, X-linked, exudative vitreoretinopathy 2, X-linked, Aarskog-Scott syndrome, X-linked, hemophilia A, X-linked hydrocephalus with stenosis of the aqueduct of Sylvius, hyper-IgM syndrome type 1, X-linked lymphoproliferative syndrome, macular dystrophy, X-linked, X-linked Emery-Dreifuss muscular dystrophy, X-linked myotubular myopathy, X-linked lethal multiple pterygium syndrome, X-linked retinoschisis, spondyloepiphyseal dysplasia tarda, X-linked, X-linked cerebellar ataxia, adrenoleukodystrophy, Charcot-Marie-Tooth disease type X, X-linked dominant disease, X-linked recessive disease, X-linked hypophosphatemic rickets, X-linked sideroblastic anemia 1, X-linked deafness, X-linked cone-rod dystrophy, X-linked congenital stationary night blindness, X-linked congenital hemolytic anemia, X-linked complex neurodevelopmental disorder, X-linked intellectual disability, leukemia, acute, X-linked
Genetics & variants
GWAS landscape
No GWAS associations recorded — common-variant (GWAS) studies don’t cover this disease (typical for Mendelian / rare diseases). See the curated gene cohort and Mendelian overlap below.
Variant details and genetic-evidence tiers
ClinVar germline variants
600 retrieved; paginated sample, class counts are floors:
178 likely pathogenic, 138 pathogenic, 86 pathogenic/likely pathogenic, 75 uncertain significance, 55 conflicting classifications of pathogenicity, 28 likely benign, 21 benign, 19 benign/likely benign
| ClinVar | Variant (HGVS) | Gene | Classification | Review |
|---|---|---|---|---|
| 10460 | Multiple alleles | Pathogenic | no assertion criteria provided | |
| 10464 | NM_033380.2(COL4A5):c.[866G>T;4282C>T] | Pathogenic | no assertion criteria provided | |
| 10453 | NG_011977.2:g.(239831_242576)_(252772_257824)del | COL4A5 | Pathogenic | no assertion criteria provided |
| 10455 | COL4A5, 10-15-KB INS, 40-KB DEL | COL4A5 | Pathogenic | no assertion criteria provided |
| 10456 | NG_011977.2:g.(246966_251107)_?del | COL4A5 | Pathogenic | no assertion criteria provided |
| 10457 | NG_011977.2:g.?_(146097_162513)del | COL4A5 | Pathogenic | no assertion criteria provided |
| 10458 | NM_033380.3(COL4A5):c.3428G>A (p.Gly1143Asp) | COL4A5 | Pathogenic | criteria provided, single submitter |
| 10462 | NM_033380.3(COL4A5):c.1561G>T (p.Gly521Cys) | COL4A5 | Pathogenic | no assertion criteria provided |
| 10463 | NM_033380.3(COL4A5):c.974G>A (p.Gly325Glu) | COL4A5 | Pathogenic | no assertion criteria provided |
| 10465 | NM_033380.3(COL4A5):c.161G>A (p.Gly54Asp) | COL4A5 | Pathogenic | no assertion criteria provided |
| 10466 | NM_033380.3(COL4A5):c.4964T>G (p.Leu1655Arg) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 10467 | NM_033380.3(COL4A5):c.5048G>A (p.Arg1683Gln) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1066338 | NM_033380.3(COL4A5):c.2998G>A (p.Gly1000Arg) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1066653 | NM_033380.3(COL4A5):c.2042-2A>G | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1066732 | NM_033380.3(COL4A5):c.3347G>A (p.Gly1116Glu) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1066759 | NM_033380.3(COL4A5):c.3107G>A (p.Gly1036Glu) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1067067 | NM_033380.3(COL4A5):c.1370G>A (p.Gly457Asp) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1068943 | NM_033380.3(COL4A5):c.4528+2T>C | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1072946 | NM_033380.3(COL4A5):c.1862G>A (p.Gly621Asp) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1073265 | NM_033380.3(COL4A5):c.4706+2T>C | COL4A5 | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 1073893 | NM_033380.3(COL4A5):c.4706+1G>T | COL4A5 | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 1075985 | NM_033380.3(COL4A5):c.3584dup (p.Gly1196fs) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1076557 | NM_033380.3(COL4A5):c.874G>A (p.Gly292Arg) | COL4A5 | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 1076952 | NM_033380.3(COL4A5):c.1808G>A (p.Gly603Asp) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1077037 | NM_033380.3(COL4A5):c.439-1G>A | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1077042 | NM_033380.3(COL4A5):c.4978_4979insAAAA (p.Val1660fs) | COL4A5 | Pathogenic | criteria provided, single submitter |
| 1077043 | NM_033380.3(COL4A5):c.1871G>T (p.Gly624Val) | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1077046 | NM_033380.3(COL4A5):c.2146G>A (p.Gly716Ser) | COL4A5 | Pathogenic | criteria provided, single submitter |
| 1077047 | NM_033380.3(COL4A5):c.1033-2A>G | COL4A5 | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1077050 | NM_033380.3(COL4A5):c.1480G>T (p.Gly494Cys) | COL4A5 | Pathogenic | criteria provided, single submitter |
Genes & proteins
Mendelian disease overlap and somatic drivers
GenCC: 6 · Orphanet: 9 · OMIM-shared: 0 · Dual-evidence (GWAS+Mendelian): 0
GenCC gene–disease validity (cohort genes)
the Disease column is the GenCC-asserted condition — a cohort gene’s strongest validity may be for a related predisposition syndrome.
| Gene | Classification | Inheritance | Disease | Records |
|---|---|---|---|---|
| COL4A5 | Definitive | X-linked | Alport syndrome | 6 |
Orphanet rare-disease linkage (cohort genes)
| Gene | Orphanet ID | Rare disease |
|---|---|---|
| COL4A5 | Orphanet:1018 | X-linked Alport syndrome-diffuse leiomyomatosis |
| COL4A5 | Orphanet:653722 | Digenic Alport syndrome |
| COL4A5 | Orphanet:88917 | X-linked Alport syndrome |
| COL4A4 | Orphanet:653722 | Digenic Alport syndrome |
| COL4A4 | Orphanet:88918 | Autosomal dominant Alport syndrome |
| COL4A4 | Orphanet:88919 | Autosomal recessive Alport syndrome |
| FN1 | Orphanet:84090 | Fibronectin glomerulopathy |
| FN1 | Orphanet:93315 | Spondylometaphyseal dysplasia, ‘corner fracture’ type |
| MSR1 | Orphanet:1331 | Familial prostate cancer |
Cohort genes → proteins
6 cohort genes, 6 distinct canonical proteins.
Evidence partition
| Subset | Genes |
|---|---|
| multi_evidence | 6 |
Cohort genes (full)
| Symbol | HGNC | Ensembl | UniProt | Name | Evidence |
|---|---|---|---|---|---|
| COL4A5 | HGNC:2207 | ENSG00000188153 | P29400 | Collagen alpha-5(IV) chain | gencc,clinvar |
| ATG4A | HGNC:16489 | ENSG00000101844 | Q8WYN0 | Cysteine protease ATG4A | clinvar |
| COL4A4 | HGNC:2206 | ENSG00000081052 | P53420 | Collagen alpha-4(IV) chain | clinvar |
| ZC3H12C | HGNC:29362 | ENSG00000149289 | Q9C0D7 | Probable ribonuclease ZC3H12C | clinvar |
| FN1 | HGNC:3778 | ENSG00000115414 | P02751 | Fibronectin | clinvar |
| MSR1 | HGNC:7376 | ENSG00000038945 | P21757 | Macrophage scavenger receptor types I and II | clinvar |
Cohort function summary
Lead sentence per gene, UniProt-curated.
| Symbol | Protein name | Function (lead sentence) |
|---|---|---|
| COL4A5 | Collagen alpha-5(IV) chain | Type IV collagen is the major structural component of glomerular basement membranes (GBM), forming a ‘chicken-wire’ meshwork together with laminins, proteoglycans and entactin/nidogen. |
| ATG4A | Cysteine protease ATG4A | Cysteine protease that plays a key role in autophagy by mediating both proteolytic activation and delipidation of ATG8 family proteins. |
| COL4A4 | Collagen alpha-4(IV) chain | Type IV collagen is the major structural component of glomerular basement membranes (GBM), forming a ‘chicken-wire’ meshwork together with laminins, proteoglycans and entactin/nidogen. |
| ZC3H12C | Probable ribonuclease ZC3H12C | May function as RNase and regulate the levels of target RNA species. |
| FN1 | Fibronectin | Fibronectins bind cell surfaces and various compounds including collagen, fibrin, heparin, DNA, and actin. |
| MSR1 | Macrophage scavenger receptor types I and II | Membrane glycoproteins implicated in the pathologic deposition of cholesterol in arterial walls during atherogenesis. |
Protein-family classification
Druggable: 2 · Difficult: 1 · Unknown: 3 · Druggable fraction: 0.33
Family distribution
Cohort families vs a genome-wide background (hypergeometric, BH-FDR; fold = observed/expected). Counts kept; sorted by enrichment, so the catch-all Other/Unknown bucket no longer leads.
| Family | Genes | Fold | FDR |
|---|---|---|---|
| Protease | 1 | 6.1× | 0.377 |
| Antibody/Immunoglobulin | 1 | 4.9× | 0.377 |
| Transcription factor | 1 | 1.4× | 0.719 |
| Other/Unknown | 3 | 0.9× | 0.758 |
Per-gene assignment
| Symbol | Family | Druggable? | EC | InterPro (top 3) |
|---|---|---|---|---|
| COL4A5 | Other/Unknown | no | Collagen_IV_NC, Collagen, CTDL_fold | |
| ATG4A | Protease | yes | Peptidase_C54, Papain-like_cys_pep_sf, Peptidase_C54_cat | |
| COL4A4 | Other/Unknown | no | Collagen_IV_NC, Collagen, CTDL_fold | |
| ZC3H12C | Transcription factor | no | Znf_CCCH, RNase_Zc3h12_NYN, Rege-1_UBA-like | |
| FN1 | Antibody/Immunoglobulin | yes | Fibronectin_type1, FN_type2_dom, FN3_dom | |
| MSR1 | Other/Unknown | no | SRCR, SR-AI/II, Collagen |
Expression context
Cohort genes with no expression data: 0.
5 cohort genes are a single-cell marker in ≥1 SCXA experiment.
Breadth distribution (Bgee present_calls)
| Bucket | Genes |
|---|---|
| narrow (1-5 tissues) | 0 |
| moderate (6-20) | 0 |
| broad (>20) | 6 |
| unknown | 0 |
Top tissues across cohort
| Tissue | Cohort genes |
|---|---|
| lower esophagus muscularis layer | 1 |
| mucosa of stomach | 1 |
| ventricular zone | 1 |
| body of pancreas | 1 |
| gastrocnemius | 1 |
| hindlimb stylopod muscle | 1 |
| metanephros cortex | 1 |
| pigmented layer of retina | 1 |
| renal medulla | 1 |
| biceps brachii | 1 |
| epithelial cell of pancreas | 1 |
| tibialis anterior | 1 |
| decidua | 1 |
| right coronary artery | 1 |
| synovial joint | 1 |
| right lung | 1 |
| upper lobe of left lung | 1 |
| upper lobe of lung | 1 |
Per-gene tissue summary (top 30)
| Symbol | Bgee breadth | FANTOM5 breadth | SCXA | Top tissues |
|---|---|---|---|---|
| COL4A5 | 267 | ubiquitous | marker | mucosa of stomach, ventricular zone, lower esophagus muscularis layer |
| ATG4A | 272 | ubiquitous | marker | body of pancreas, gastrocnemius, hindlimb stylopod muscle |
| COL4A4 | 187 | broad | marker | renal medulla, metanephros cortex, pigmented layer of retina |
| ZC3H12C | 247 | ubiquitous | yes | tibialis anterior, epithelial cell of pancreas, biceps brachii |
| FN1 | 292 | ubiquitous | marker | synovial joint, right coronary artery, decidua |
| MSR1 | 206 | broad | marker | right lung, upper lobe of left lung, upper lobe of lung |
Protein interactions among cohort
Intra-cohort edges: 1.
Hub genes (top 10 by interactor count)
| Symbol | Interactor count |
|---|---|
| FN1 | 8,860 |
| MSR1 | 2,259 |
| COL4A5 | 1,738 |
| COL4A4 | 1,243 |
| ATG4A | 1,161 |
| ZC3H12C | 570 |
Intra-cohort edges
| A | B | Sources |
|---|---|---|
| COL4A4 | COL4A5 | string_interaction |
Structural data
PDB: 5 · AlphaFold-only: 1 · No structure: 0
Cohort genes with PDB structures (top 30)
| Symbol | UniProt | PDB entries |
|---|---|---|
| FN1 | P02751 | 65 |
| COL4A5 | P29400 | 2 |
| COL4A4 | P53420 | 2 |
| ATG4A | Q8WYN0 | 1 |
| MSR1 | P21757 | 1 |
AlphaFold-only cohort genes (top 30 by pLDDT)
| Symbol | UniProt | pLDDT |
|---|---|---|
| ZC3H12C | Q9C0D7 | 58.15 |
Function
Pathway analysis
Distinct Reactome pathways touched by cohort: 44. Enrichment computed across 6 evidence-associated genes (5 with Reactome annotation).
Pathways by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 5 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| Pathway | Cohort genes | Fold | FDR | Sample cohort genes |
|---|---|---|---|---|
| Fibronectin matrix formation | 3 | 342.6× | 2e-06 | COL4A5, COL4A4, FN1 |
| Attachment of bacteria to epithelial cells | 3 | 297.9× | 2e-06 | COL4A5, COL4A4, FN1 |
| Non-integrin membrane-ECM interactions | 3 | 92.6× | 3e-05 | COL4A5, COL4A4, FN1 |
| ECM proteoglycans | 3 | 90.2× | 3e-05 | COL4A5, COL4A4, FN1 |
| Integrin cell surface interactions | 3 | 80.6× | 3e-05 | COL4A5, COL4A4, FN1 |
| Anchoring fibril formation | 2 | 304.5× | 1e-04 | COL4A5, COL4A4 |
| Crosslinking of collagen fibrils | 2 | 228.4× | 2e-04 | COL4A5, COL4A4 |
| Laminin interactions | 2 | 152.3× | 4e-04 | COL4A5, COL4A4 |
| Collagen chain trimerization | 2 | 103.8× | 6e-04 | COL4A5, COL4A4 |
| Signaling by PDGF | 2 | 101.5× | 6e-04 | COL4A5, COL4A4 |
| NCAM1 interactions | 2 | 99.3× | 6e-04 | COL4A5, COL4A4 |
| Assembly of collagen fibrils and other multimeric structures | 2 | 80.1× | 9e-04 | COL4A5, COL4A4 |
| Collagen degradation | 2 | 70.3× | 0.001 | COL4A5, COL4A4 |
| Collagen biosynthesis and modifying enzymes | 2 | 68.2× | 0.001 | COL4A5, COL4A4 |
| ALK mutants bind TKIs | 1 | 190.3× | 0.015 | FN1 |
| p130Cas linkage to MAPK signaling for integrins | 1 | 152.3× | 0.018 | FN1 |
| GRB2:SOS provides linkage to MAPK signaling for Integrins | 1 | 142.8× | 0.018 | FN1 |
| Scavenging by Class A Receptors | 1 | 120.2× | 0.020 | MSR1 |
| Binding and Uptake of Ligands by Scavenger Receptors | 1 | 108.8× | 0.021 | MSR1 |
| Syndecan interactions | 1 | 84.6× | 0.025 | FN1 |
| Integrin signaling | 1 | 84.6× | 0.025 | FN1 |
| MET activates PTK2 signaling | 1 | 76.1× | 0.026 | FN1 |
| Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells | 1 | 71.4× | 0.027 | FN1 |
| Signaling by high-kinase activity BRAF mutants | 1 | 63.4× | 0.028 | FN1 |
| Molecules associated with elastic fibres | 1 | 61.7× | 0.028 | FN1 |
| MAP2K and MAPK activation | 1 | 57.1× | 0.028 | FN1 |
| Signaling by RAF1 mutants | 1 | 55.7× | 0.028 | FN1 |
| Signaling by moderate kinase activity BRAF mutants | 1 | 50.8× | 0.028 | FN1 |
| Paradoxical activation of RAF signaling by kinase inactive BRAF | 1 | 50.8× | 0.028 | FN1 |
| Signaling downstream of RAS mutants | 1 | 50.8× | 0.028 | FN1 |
GO biological processes by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 5 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| GO term | Cohort genes | Fold | FDR | Sample cohort genes |
|---|---|---|---|---|
| negative regulation of monocyte activation | 1 | 1123.5× | 0.010 | FN1 |
| calcium-independent cell-matrix adhesion | 1 | 842.6× | 0.010 | FN1 |
| plasma lipoprotein particle clearance | 1 | 842.6× | 0.010 | MSR1 |
| positive regulation of substrate-dependent cell migration, cell attachment to substrate | 1 | 842.6× | 0.010 | FN1 |
| protein delipidation | 1 | 674.1× | 0.010 | ATG4A |
| negative regulation of transforming growth factor beta production | 1 | 674.1× | 0.010 | FN1 |
| cell-substrate junction assembly | 1 | 561.7× | 0.010 | FN1 |
| biological process involved in interaction with symbiont | 1 | 561.7× | 0.010 | FN1 |
| collagen fibril organization | 2 | 89.9× | 0.010 | COL4A5, COL4A4 |
| autophagy | 2 | 44.1× | 0.010 | ATG4A, FN1 |
| positive regulation of cholesterol storage | 1 | 481.5× | 0.011 | MSR1 |
| neural crest cell migration involved in autonomic nervous system development | 1 | 374.5× | 0.012 | FN1 |
| aggrephagy | 1 | 337.0× | 0.012 | ATG4A |
| blood coagulation, fibrin clot formation | 1 | 337.0× | 0.012 | FN1 |
| glomerular basement membrane development | 1 | 306.4× | 0.012 | COL4A4 |
| integrin activation | 1 | 280.9× | 0.012 | FN1 |
| collagen-activated tyrosine kinase receptor signaling pathway | 1 | 259.3× | 0.013 | COL4A5 |
| regulation of protein phosphorylation | 1 | 224.7× | 0.014 | FN1 |
| lipoprotein transport | 1 | 198.3× | 0.014 | MSR1 |
| enteric nervous system development | 1 | 198.3× | 0.014 | FN1 |
| piecemeal microautophagy of the nucleus | 1 | 187.2× | 0.014 | ATG4A |
| amyloid-beta clearance | 1 | 187.2× | 0.014 | MSR1 |
| positive regulation of macrophage derived foam cell differentiation | 1 | 168.5× | 0.014 | MSR1 |
| cholesterol transport | 1 | 146.5× | 0.016 | MSR1 |
| phagocytosis, engulfment | 1 | 134.8× | 0.017 | MSR1 |
| response to muscle activity | 1 | 116.2× | 0.018 | FN1 |
| regulation of ERK1 and ERK2 cascade | 1 | 116.2× | 0.018 | FN1 |
| neuromuscular junction development | 1 | 105.3× | 0.019 | COL4A5 |
| positive regulation of axon extension | 1 | 102.1× | 0.019 | FN1 |
| endodermal cell differentiation | 1 | 99.1× | 0.019 | FN1 |
Therapeutics
Drug target analysis
Approved (phase 4): 1 · Phase ≥3: 1 · Phased (≥1): 1 · Undrugged: 5
Druggability breadth: 5 of 6 evidence-associated genes (83%) have a ChEMBL target (buckets above are over the deeply-mined display cohort).
Genes with an approved drug
The molecule shown is one approved compound that hits the gene — not necessarily a drug of choice or one indicated for this disease.
| Symbol | Example approved molecule |
|---|---|
| ATG4A | TIOCONAZOLE |
Top cohort targets by molecule count
| Symbol | Molecules | Max phase |
|---|---|---|
| ATG4A | 1 | 4 |
| COL4A5 | 0 | 0 |
| COL4A4 | 0 | 0 |
| ZC3H12C | 0 | 0 |
| FN1 | 0 | 0 |
| MSR1 | 0 | 0 |
Drugs targeting cohort genes (top 30)
| Molecule | Max phase | Targets in cohort |
|---|---|---|
| TIOCONAZOLE | 4 | ATG4A |
Bioactivity and enzyme data
Enzyme cohort genes (≥1 EC): 0.
Cohort genes with ChEMBL bioactivity (full, sorted by assay count)
| Symbol | Assays | Type breakdown |
|---|---|---|
| ATG4A | 1 | Binding:1 |
| FN1 | 1 | Binding:1 |
| MSR1 | 1 | Binding:1 |
Pharmacogenomics
Cohort genes with a PharmGKB record: 6; with CPIC/DPWG dosing guidelines: 0.
No cohort gene has a CPIC/DPWG genotype-guided dosing guideline (PharmGKB).
Chemical tractability of cohort targets
1 approved/phased compounds have measured bioactivity against a cohort gene (and aren’t yet in disease-level trials). This is a research / tractability signal, NOT a therapeutic recommendation — a bioactivity row often reflects off-target or screening binding (e.g. promiscuous kinase inhibitors against a cohort kinase), implying no disease mechanism.
| Compound | Max phase | Cohort target (bioactivity) |
|---|---|---|
| TIOCONAZOLE | 4 | ATG4A |
Druggability pyramid
Cohort genes binned by druggability tier (high → low):
| Tier | Definition | Genes | Symbols |
|---|---|---|---|
| A | Approved (phase 4 drug) | 1 | ATG4A |
| B | Phased (≥1) drug, not yet approved | 0 | |
| C | Druggable family + PDB, no drug | 1 | FN1 |
| D | Druggable family + AlphaFold only, no drug | 0 | |
| E | Difficult family or no structure, no drug | 4 | COL4A5, COL4A4, ZC3H12C, MSR1 |
Undrugged target profiles
5 cohort genes are undrugged. Ranked by ‘starting-point quality’ (assay depth + drugged-partner adjacency).
| Symbol | ChEMBL assays | Drugged partners (top 3) |
|---|---|---|
| COL4A5 | 0 | — |
| COL4A4 | 0 | — |
| ZC3H12C | 0 | — |
| FN1 | 1 | — |
| MSR1 | 1 | — |
Clinical trials & evidence
Clinical trials
Clinical trials: 3.
Phase distribution (across all retrieved trials)
| Phase | Trials |
|---|---|
| PHASE2 | 2 |
| Not specified | 1 |
Top trials by phase / activity
| NCT | Phase | Status | Title |
|---|---|---|---|
| NCT07523581 | PHASE2 | NOT_YET_RECRUITING | EXACT Study: A Blinded Study in Patients With Alport Syndrome to Evaluate Exaluren Efficacy and Safety |
| NCT04937907 | PHASE2 | COMPLETED | Study of Hydroxychloroquine in Patients With X-linked Alport Syndrome in China (CHXLAS) |
| NCT03655223 | Not specified | ENROLLING_BY_INVITATION | Early Check: Expanded Screening in Newborns |
Drugs tested across these trials (top 30)
| Molecule | Max phase | Trials referencing |
|---|---|---|
| BENAZEPRIL | 4 | 1 |
| HYDROXYCHLOROQUINE | 4 | 1 |
| ELX-02 | 2 | 1 |
Related Atlas pages
- Cohort genes: COL4A5, ATG4A, COL4A4, ZC3H12C, FN1, MSR1
- Drugs: Benazepril, Hydroxychloroquine