14-77327994-G-A
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_145870.3(GSTZ1):c.299G>A(p.Arg100His) variant causes a missense change. The variant allele was found at a frequency of 0.000031 in 1,614,072 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000031 ( 0 hom. )
Consequence
GSTZ1
NM_145870.3 missense
NM_145870.3 missense
Scores
1
10
7
Clinical Significance
Conservation
PhyloP100: 5.52
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 Uncertain_significance. Variant got 2 ACMG points.
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.299G>A | p.Arg100His | missense_variant | 5/9 | ENST00000216465.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GSTZ1 | ENST00000216465.10 | c.299G>A | p.Arg100His | missense_variant | 5/9 | 1 | NM_145870.3 |
Frequencies
GnomAD3 genomes AF: 0.0000328 AC: 5AN: 152220Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000637 AC: 16AN: 251130Hom.: 0 AF XY: 0.0000663 AC XY: 9AN XY: 135768
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GnomAD4 exome AF: 0.0000308 AC: 45AN: 1461734Hom.: 0 Cov.: 33 AF XY: 0.0000371 AC XY: 27AN XY: 727176
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GnomAD4 genome AF: 0.0000328 AC: 5AN: 152338Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3AN XY: 74504
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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 | Dec 06, 2021 | The c.299G>A (p.R100H) alteration is located in exon 5 (coding exon 5) of the GSTZ1 gene. This alteration results from a G to A substitution at nucleotide position 299, causing the arginine (R) at amino acid position 100 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Benign
.;.;T;.;.;T;.;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;.;D;.;D;D;D;D
M_CAP
Benign
D
MetaRNN
Uncertain
T;T;T;T;T;T;T;T
MetaSVM
Benign
T
MutationTaster
Benign
D;D;D;D;D;D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D;D;D;D;D;D
REVEL
Benign
Sift
Uncertain
D;D;D;D;D;D;D;D
Sift4G
Uncertain
D;D;D;D;D;D;D;D
Vest4
MVP
MPC
ClinPred
D
GERP RS
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