rs777226
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Variant summary
Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1
The NM_052883.3(TXNRD3):c.971+76G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.202 in 889,664 control chromosomes in the GnomAD database, including 19,646 homozygotes. 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: 𝑓 0.19 ( 2983 hom., cov: 32)
Exomes 𝑓: 0.21 ( 16663 hom. )
Consequence
TXNRD3
NM_052883.3 intron
NM_052883.3 intron
Scores
2
Clinical Significance
Not reported in ClinVar
Conservation
PhyloP100: -1.03
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 Benign. Variant got -12 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BA1
?
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.276 is higher than 0.05.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TXNRD3 | NM_052883.3 | c.971+76G>A | intron_variant | ENST00000524230.9 | |||
TXNRD3 | NM_001173513.3 | c.971+76G>A | intron_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TXNRD3 | ENST00000524230.9 | c.971+76G>A | intron_variant | 1 | NM_052883.3 | P1 | |||
TXNRD3 | ENST00000523403.3 | c.971+76G>A | intron_variant | 2 |
Frequencies
GnomAD3 genomes ? AF: 0.186 AC: 28233AN: 151964Hom.: 2982 Cov.: 32
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GnomAD4 exome AF: 0.206 AC: 151611AN: 737582Hom.: 16663 AF XY: 0.205 AC XY: 78736AN XY: 383622
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GnomAD4 genome ? AF: 0.186 AC: 28250AN: 152082Hom.: 2983 Cov.: 32 AF XY: 0.181 AC XY: 13480AN XY: 74352
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ClinVar
Not reported inComputational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at