3-126608564-T-C
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Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_052883.3(TXNRD3):āc.1798A>Gā(p.Met600Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000391 in 1,535,916 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.
Frequency
Genomes: š 0.0000066 ( 0 hom., cov: 32)
Exomes š: 0.0000036 ( 0 hom. )
Consequence
TXNRD3
NM_052883.3 missense
NM_052883.3 missense
Scores
1
5
9
Clinical Significance
Conservation
PhyloP100: 4.86
Genes affected
TXNRD3 (HGNC:20667): (thioredoxin reductase 3) The protein encoded by this gene belongs to the pyridine nucleotide-disulfide oxidoreductase family, and is a member of the thioredoxin (Trx) system. Three thioredoxin reductase (TrxR) isozymes are found in mammals. TrxRs are selenocysteine-containing flavoenzymes, which reduce thioredoxins, as well as other substrates, and play a key role in redox homoeostasis. This gene encodes the third TrxR, which unlike the other two isozymes, contains an additional N-terminal glutaredoxin (Grx) domain, and shows highest expression in testis. The Grx domain allows this isozyme to participate in both Trx and glutathione systems. It functions as a homodimer containing FAD, and selenocysteine (Sec) at the active site. Sec is encoded by UGA codon that normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, the Sec insertion sequence (SECIS) element, which is necessary for the recognition of UGA as a Sec codon rather than as a stop signal. Alternatively spliced transcript variants have been found for this gene. Experimental evidence suggests the use of a non-AUG (CUG) codon as a translation initiation codon (PMID:20018845). [provided by RefSeq, Aug 2017]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 1 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.41626796).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
TXNRD3 | NM_052883.3 | c.1798A>G | p.Met600Val | missense_variant | 15/16 | ENST00000524230.9 | NP_443115.1 | |
TXNRD3 | NM_001173513.3 | c.1690A>G | p.Met564Val | missense_variant | 14/15 | NP_001166984.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
TXNRD3 | ENST00000524230.9 | c.1798A>G | p.Met600Val | missense_variant | 15/16 | 1 | NM_052883.3 | ENSP00000430031.4 | ||
TXNRD3 | ENST00000523403.3 | c.1690A>G | p.Met564Val | missense_variant | 14/15 | 2 | ENSP00000429584.3 | |||
TXNRD3 | ENST00000518740.5 | n.175A>G | non_coding_transcript_exon_variant | 2/3 | 2 | |||||
TXNRD3 | ENST00000383572.3 | n.-9A>G | upstream_gene_variant | 1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152162Hom.: 0 Cov.: 32
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GnomAD4 exome AF: 0.00000361 AC: 5AN: 1383754Hom.: 0 Cov.: 30 AF XY: 0.00000439 AC XY: 3AN XY: 682824
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152162Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74346
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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 | Aug 05, 2024 | The c.1798A>G (p.M600V) alteration is located in exon 15 (coding exon 15) of the TXNRD3 gene. This alteration results from a A to G substitution at nucleotide position 1798, causing the methionine (M) at amino acid position 600 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
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Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Benign
DANN
Benign
DEOGEN2
Benign
.;.;.;T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
.;.;.;D
MetaRNN
Benign
T;T;T;T
MetaSVM
Uncertain
T
MutationAssessor
Benign
.;.;.;L
PrimateAI
Benign
T
REVEL
Uncertain
Sift4G
Benign
T;T;.;.
Vest4
MVP
ClinPred
D
GERP RS
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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