20-7914210-G-A
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong
The NM_017545.3(HAO1):c.499C>T(p.Arg167Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000304 in 1,613,880 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000031 ( 0 hom. )
Consequence
HAO1
NM_017545.3 missense
NM_017545.3 missense
Scores
12
6
1
Clinical Significance
Conservation
PhyloP100: 6.03
Genes affected
HAO1 (HGNC:4809): (hydroxyacid oxidase 1) 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]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
PM1
?
In a binding_site (size 0) in uniprot entity HAOX1_HUMAN
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.985
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
HAO1 | NM_017545.3 | c.499C>T | p.Arg167Cys | missense_variant | 3/8 | ENST00000378789.4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
HAO1 | ENST00000378789.4 | c.499C>T | p.Arg167Cys | missense_variant | 3/8 | 1 | NM_017545.3 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000263 AC: 4AN: 152112Hom.: 0 Cov.: 32
GnomAD3 genomes
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GnomAD3 exomes AF: 0.0000199 AC: 5AN: 250920Hom.: 0 AF XY: 0.0000148 AC XY: 2AN XY: 135590
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GnomAD4 exome AF: 0.0000308 AC: 45AN: 1461768Hom.: 0 Cov.: 32 AF XY: 0.0000275 AC XY: 20AN XY: 727190
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GnomAD4 genome ? AF: 0.0000263 AC: 4AN: 152112Hom.: 0 Cov.: 32 AF XY: 0.0000538 AC XY: 4AN XY: 74294
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Sep 16, 2021 | The c.499C>T (p.R167C) alteration is located in exon 3 (coding exon 3) of the HAO1 gene. This alteration results from a C to T substitution at nucleotide position 499, causing the arginine (R) at amino acid position 167 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
Cadd
Pathogenic
Dann
Pathogenic
DEOGEN2
Uncertain
D
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Pathogenic
D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
MutationAssessor
Pathogenic
H
MutationTaster
Benign
D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D
REVEL
Uncertain
Sift
Pathogenic
D
Sift4G
Pathogenic
D
Polyphen
D
Vest4
MutPred
Gain of catalytic residue at L168 (P = 0.0111);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at