14-77327954-C-T
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Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2
The NM_145870.3(GSTZ1):c.259C>T(p.Arg87Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000316 in 1,613,744 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 other (★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000033 ( 0 hom. )
Consequence
GSTZ1
NM_145870.3 stop_gained
NM_145870.3 stop_gained
Scores
2
2
3
Clinical Significance
Conservation
PhyloP100: 0.737
Genes affected
GSTZ1 (HGNC:4643): (glutathione S-transferase zeta 1) This gene is a member of the glutathione S-transferase (GSTs) super-family which encodes multifunctional enzymes important in the detoxification of electrophilic molecules, including carcinogens, mutagens, and several therapeutic drugs, by conjugation with glutathione. This enzyme catalyzes the conversion of maleylacetoacetate to fumarylacetoacatate, which is one of the steps in the phenylalanine/tyrosine degradation pathway. Deficiency of a similar gene in mouse causes oxidative stress. Several transcript variants of this gene encode multiple protein isoforms. [provided by RefSeq, Jul 2015]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 10 ACMG points.
PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GSTZ1 | NM_145870.3 | c.259C>T | p.Arg87Ter | stop_gained | 5/9 | ENST00000216465.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GSTZ1 | ENST00000216465.10 | c.259C>T | p.Arg87Ter | stop_gained | 5/9 | 1 | NM_145870.3 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152138Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000239 AC: 6AN: 251290Hom.: 0 AF XY: 0.0000368 AC XY: 5AN XY: 135850
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GnomAD4 exome AF: 0.0000328 AC: 48AN: 1461606Hom.: 0 Cov.: 33 AF XY: 0.0000399 AC XY: 29AN XY: 727134
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GnomAD4 genome AF: 0.0000197 AC: 3AN: 152138Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74322
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ClinVar
Significance: other
Submissions summary: Other:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Maleylacetoacetate isomerase deficiency Other:1
Affects, no assertion criteria provided | literature only | OMIM | Jul 26, 2017 | - - |
not provided Other:1
other, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Apr 10, 2018 | - Variant classified as "other reportable" ??? variant is clinically benign (not associated with disease) but is reported when observed (e.g. pseudodeficiency alleles). |
Computational scores
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Name
Calibrated prediction
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BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
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Eigen_PC
Benign
FATHMM_MKL
Benign
N
MutationTaster
Benign
A;A;A;A;A;A;A;N;N
Vest4
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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