1-109738119-A-G
Position:
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_000849.5(GSTM3):āc.344T>Cā(p.Leu115Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,762 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 (ā ).
Frequency
Genomes: not found (cov: 33)
Exomes š: 0.0000014 ( 0 hom. )
Consequence
GSTM3
NM_000849.5 missense
NM_000849.5 missense
Scores
5
8
6
Clinical Significance
Conservation
PhyloP100: 7.83
Genes affected
GSTM3 (HGNC:4635): (glutathione S-transferase mu 3) Cytosolic and membrane-bound forms of glutathione S-transferase are encoded by two distinct supergene families. At present, eight distinct classes of the soluble cytoplasmic mammalian glutathione S-transferases have been identified: alpha, kappa, mu, omega, pi, sigma, theta and zeta. This gene encodes a glutathione S-transferase that belongs to the mu class. The mu class of enzymes functions in the detoxification of electrophilic compounds, including carcinogens, therapeutic drugs, environmental toxins and products of oxidative stress, by conjugation with glutathione. The genes encoding the mu class of enzymes are organized in a gene cluster on chromosome 1p13.3 and are known to be highly polymorphic. These genetic variations can change an individual's susceptibility to carcinogens and toxins as well as affect the toxicity and efficacy of certain drugs. Mutations of this class mu gene have been linked with a slight increase in a number of cancers, likely due to exposure with environmental toxins. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.96
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
GSTM3 | NM_000849.5 | c.344T>C | p.Leu115Pro | missense_variant | 6/9 | ENST00000361066.7 | NP_000840.2 | |
GSTM3 | NR_024537.2 | n.578T>C | non_coding_transcript_exon_variant | 5/8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
GSTM3 | ENST00000361066.7 | c.344T>C | p.Leu115Pro | missense_variant | 6/9 | 1 | NM_000849.5 | ENSP00000354357.2 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
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33
GnomAD3 exomes AF: 0.00000795 AC: 2AN: 251464Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135912
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GnomAD4 exome AF: 0.00000137 AC: 2AN: 1460762Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2AN XY: 726802
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GnomAD4 genome Cov.: 33
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33
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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 21, 2022 | The c.344T>C (p.L115P) alteration is located in exon 6 (coding exon 5) of the GSTM3 gene. This alteration results from a T to C substitution at nucleotide position 344, causing the leucine (L) at amino acid position 115 to be replaced by a proline (P). 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
Uncertain
T
BayesDel_noAF
Uncertain
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T;T;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Benign
T;.;T
M_CAP
Benign
T
MetaRNN
Pathogenic
D;D;D
MetaSVM
Benign
T
MutationAssessor
Pathogenic
M;M;.
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D
REVEL
Benign
Sift
Uncertain
D;D;D
Sift4G
Uncertain
D;D;D
Polyphen
D;D;.
Vest4
MutPred
Loss of helix (P = 0.079);Loss of helix (P = 0.079);Loss of helix (P = 0.079);
MVP
MPC
0.91
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