rs61736929

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_006440.5(TXNRD2):​c.526G>C​(p.Glu176Gln) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00408 in 1,614,186 control chromosomes in the GnomAD database, including 252 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.022 ( 124 hom., cov: 32)
Exomes 𝑓: 0.0022 ( 128 hom. )

Consequence

TXNRD2
NM_006440.5 missense, splice_region

Scores

6
12
Splicing: ADA: 0.8753
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 2.59

Publications

6 publications found
Variant links:
Genes affected
TXNRD2 (HGNC:18155): (thioredoxin reductase 2) 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 a mitochondrial form important for scavenging reactive oxygen species in mitochondria. 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 encoding different isoforms, including a few localized in the cytosol and some lacking the C-terminal Sec residue, have been found for this gene. [provided by RefSeq, Jun 2017]
TXNRD2 Gene-Disease associations (from GenCC):
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial glucocorticoid deficiency
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • dilated cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
  • glucocorticoid deficiency 5
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0019516945).
BP6
Variant 22-19915767-C-G is Benign according to our data. Variant chr22-19915767-C-G is described in ClinVar as Benign. ClinVar VariationId is 386317.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0748 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TXNRD2NM_006440.5 linkc.526G>C p.Glu176Gln missense_variant, splice_region_variant Exon 6 of 18 ENST00000400521.7 NP_006431.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TXNRD2ENST00000400521.7 linkc.526G>C p.Glu176Gln missense_variant, splice_region_variant Exon 6 of 18 1 NM_006440.5 ENSP00000383365.1

Frequencies

GnomAD3 genomes
AF:
0.0218
AC:
3323
AN:
152198
Hom.:
120
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0767
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00641
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.000220
Gnomad OTH
AF:
0.0143
GnomAD2 exomes
AF:
0.00547
AC:
1364
AN:
249576
AF XY:
0.00416
show subpopulations
Gnomad AFR exome
AF:
0.0787
Gnomad AMR exome
AF:
0.00321
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.00264
GnomAD4 exome
AF:
0.00221
AC:
3230
AN:
1461870
Hom.:
128
Cov.:
31
AF XY:
0.00194
AC XY:
1410
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.0809
AC:
2707
AN:
33476
American (AMR)
AF:
0.00391
AC:
175
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000812
AC:
7
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00399
AC:
23
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000647
AC:
72
AN:
1111994
Other (OTH)
AF:
0.00407
AC:
246
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
155
311
466
622
777
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
88
176
264
352
440
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0220
AC:
3348
AN:
152316
Hom.:
124
Cov.:
32
AF XY:
0.0208
AC XY:
1553
AN XY:
74486
show subpopulations
African (AFR)
AF:
0.0771
AC:
3201
AN:
41540
American (AMR)
AF:
0.00640
AC:
98
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.0102
AC:
3
AN:
294
European-Non Finnish (NFE)
AF:
0.000220
AC:
15
AN:
68032
Other (OTH)
AF:
0.0142
AC:
30
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
155
311
466
622
777
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
32
64
96
128
160
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00168
Hom.:
3
Bravo
AF:
0.0245
ESP6500AA
AF:
0.0666
AC:
269
ESP6500EA
AF:
0.000240
AC:
2
ExAC
AF:
0.00655
AC:
792
Asia WGS
AF:
0.00318
AC:
11
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Oct 19, 2016
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Primary dilated cardiomyopathy Benign:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiovascular phenotype Benign:1
Jun 25, 2015
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.36
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.091
.;.;.;.;T;T;.
Eigen
Uncertain
0.26
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.91
.;D;.;.;D;D;D
MetaRNN
Benign
0.0020
T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.2
.;.;.;.;M;.;.
PhyloP100
2.6
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-1.9
N;.;N;N;N;.;N
REVEL
Benign
0.10
Sift
Benign
0.080
T;.;T;T;T;.;T
Sift4G
Benign
0.14
T;T;T;T;T;T;T
Polyphen
0.84, 0.91
.;.;.;.;P;.;P
Vest4
0.32
MVP
0.68
MPC
0.27
ClinPred
0.012
T
GERP RS
4.9
PromoterAI
0.0060
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.13
Mutation Taster
=62/38
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.88
dbscSNV1_RF
Benign
0.64
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs61736929; hg19: chr22-19903290; API