3-126608564-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_052883.3(TXNRD3):ā€‹c.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

Scores

1
5
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.86
Variant links:
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]

Genome browser will be placed here

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
TXNRD3NM_052883.3 linkuse as main transcriptc.1798A>G p.Met600Val missense_variant 15/16 ENST00000524230.9 NP_443115.1 Q86VQ6
TXNRD3NM_001173513.3 linkuse as main transcriptc.1690A>G p.Met564Val missense_variant 14/15 NP_001166984.1 Q86VQ6B4DRZ5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TXNRD3ENST00000524230.9 linkuse as main transcriptc.1798A>G p.Met600Val missense_variant 15/161 NM_052883.3 ENSP00000430031.4 Q86VQ6H0YBQ0
TXNRD3ENST00000523403.3 linkuse as main transcriptc.1690A>G p.Met564Val missense_variant 14/152 ENSP00000429584.3 H0YBI6
TXNRD3ENST00000518740.5 linkuse as main transcriptn.175A>G non_coding_transcript_exon_variant 2/32
TXNRD3ENST00000383572.3 linkuse as main transcriptn.-9A>G upstream_gene_variant 1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000361
AC:
5
AN:
1383754
Hom.:
0
Cov.:
30
AF XY:
0.00000439
AC XY:
3
AN XY:
682824
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000794
Gnomad4 EAS exome
AF:
0.0000280
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000345
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

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 submitterclinical testingAmbry GeneticsAug 05, 2024The 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

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.080
CADD
Benign
21
DANN
Benign
0.94
DEOGEN2
Benign
0.34
.;.;.;T
Eigen
Benign
-0.16
Eigen_PC
Benign
-0.0073
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.92
.;.;.;D
MetaRNN
Benign
0.42
T;T;T;T
MetaSVM
Uncertain
-0.23
T
MutationAssessor
Benign
1.6
.;.;.;L
PrimateAI
Benign
0.43
T
REVEL
Uncertain
0.50
Sift4G
Benign
0.24
T;T;.;.
Vest4
0.31
MVP
0.55
ClinPred
0.79
D
GERP RS
4.0
Varity_R
0.24

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1173319251; hg19: chr3-126327407; API