HAO1

protein-coding

hydroxyacid oxidase 1

Gene summary

This gene is one of three related genes that have 2-hydroxyacid oxidase activity yet differ in encoded protein amino acid sequence, tissue expression and substrate preference. Subcellular location of the encoded protein is the peroxisome. Specifically, this gene is expressed primarily in liver and pancreas and the encoded protein is most active on glycolate, a two-carbon substrate. The protein is also active on 2-hydroxy fatty acids. The transcript detected at high levels in pancreas may represent an alternatively spliced form or the use of a multiple near-consensus upstream polyadenylation site. [provided by RefSeq, Jul 2008]

Previous symbols:
  • GOX1

MANE transcript

NM_017545.3

Inheritance

—

ClinVar variants

P:2U:59B:1

Top phenotype

GLYCOLIC ACIDURIA, ISOLATED

gnomAD constraint

pLI —, LoF o/e 0.72

Max pathogenic AF

—

Genomic locus

chr20:7,882,985-7,940,458

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~57.5 kb
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GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to HAO1 variants in ClinVar

3 Conditions Cataloged
not specifiedTotal: 59
GLYCOLIC ACIDURIA, ISOLATEDTotal: 1
glycolate oxidase deficiencyTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_017545.3. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
0
missense
1
clinvar
58
clinvar
1
clinvar
60
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
1
clinvar
1
clinvar
2
Total20591062

Highest pathogenic variant AF is 0.000021066877

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 17 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_017545.3RefSeqNP_060015.18MANE Select
ENST00000378789.4EnsemblENSP00000368066.38MANE Select
ENST00000891783.1EnsemblENSP00000561842.17Standard
ENST00000983374.1EnsemblENSP00000653191.16Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Peroxisome - Homo sapiens (human)
  • Glyoxylate and dicarboxylate metabolism - Homo sapiens (human)
  • Metabolism of proteins
  • Metabolism of amino acids and derivatives
  • Metabolism

Biological Process

  • fatty acid alpha-oxidation
  • protein targeting to peroxisome
  • response to oxidative stress
  • cellular nitrogen compound metabolic process
  • glycolate catabolic process

Molecular Function

  • (S)-2-hydroxy-acid oxidase activity
  • signaling receptor binding
  • glycolate oxidase activity
  • FMN binding
  • glyoxylate oxidase activity

Cellular Component

  • peroxisome
  • peroxisomal matrix
  • cytosol

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000378789
Coding exons
8
Length
57494
Individuals with no LoFs
125694
Homozygous LoFs
0
Heterozygous LoFs
46
Defined
125740
p
0.000183
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense-0.4972392181.090.00001232387
Missense (PolyPhen)11195.4311.1631990
Synonymous0.1828183.10.9750.00000477749
Loss of Function1.101318.00.7209.14e-7213

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000120.00012rare
Latino/Admixed American0.000350.00035rare
Ashkenazi Jewish0.000300.00030rare
East Asian0.000330.00033rare
Finnish0.0000460.000046rare
European (Non-Finnish)0.000150.00015rare
South Asian0.000130.00013rare
Other0.000160.00016rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Has 2-hydroxyacid oxidase activity. Most active on the 2-carbon substrate glycolate, but is also active on 2-hydroxy fatty acids, with high activity towards 2-hydroxy palmitate and 2- hydroxy octanoate. {ECO:0000269|PubMed:18215067}.;

Recessive Scores

pRec
0.302

Intolerance Scores

LoFtool
0.818
RVIS EVS
0.31
RVIS percentile EVS
72.38

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.950

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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