rs201391000

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_006440.5(TXNRD2):​c.1523G>A​(p.Arg508His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000173 in 1,609,992 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R508C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00091 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000097 ( 0 hom. )

Consequence

TXNRD2
NM_006440.5 missense

Scores

1
16

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.455

Publications

0 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 -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.00671497).
BP6
Variant 22-19877157-C-T is Benign according to our data. Variant chr22-19877157-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 263535.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006440.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TXNRD2
NM_006440.5
MANE Select
c.1523G>Ap.Arg508His
missense
Exon 17 of 18NP_006431.2
TXNRD2
NM_001352300.2
c.1520G>Ap.Arg507His
missense
Exon 17 of 17NP_001339229.1
TXNRD2
NM_001352301.2
c.1433G>Ap.Arg478His
missense
Exon 17 of 18NP_001339230.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TXNRD2
ENST00000400521.7
TSL:1 MANE Select
c.1523G>Ap.Arg508His
missense
Exon 17 of 18ENSP00000383365.1Q9NNW7-1
TXNRD2
ENST00000400519.6
TSL:1
c.1520G>Ap.Arg507His
missense
Exon 17 of 17ENSP00000383363.1A0A182DWF3
TXNRD2
ENST00000400518.5
TSL:1
c.1433G>Ap.Arg478His
missense
Exon 17 of 18ENSP00000383362.1A0A182DWF2

Frequencies

GnomAD3 genomes
AF:
0.000907
AC:
138
AN:
152074
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00304
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000957
GnomAD2 exomes
AF:
0.000234
AC:
58
AN:
247650
AF XY:
0.000156
show subpopulations
Gnomad AFR exome
AF:
0.00352
Gnomad AMR exome
AF:
0.0000291
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000893
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000967
AC:
141
AN:
1457800
Hom.:
0
Cov.:
31
AF XY:
0.0000814
AC XY:
59
AN XY:
724642
show subpopulations
African (AFR)
AF:
0.00332
AC:
111
AN:
33424
American (AMR)
AF:
0.0000896
AC:
4
AN:
44634
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26076
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39586
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86188
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52530
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5744
European-Non Finnish (NFE)
AF:
0.00000721
AC:
8
AN:
1109432
Other (OTH)
AF:
0.000249
AC:
15
AN:
60186
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
8
16
24
32
40
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000907
AC:
138
AN:
152192
Hom.:
0
Cov.:
33
AF XY:
0.000820
AC XY:
61
AN XY:
74424
show subpopulations
African (AFR)
AF:
0.00304
AC:
126
AN:
41510
American (AMR)
AF:
0.000654
AC:
10
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5164
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67978
Other (OTH)
AF:
0.000947
AC:
2
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
8
15
23
30
38
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000949
Hom.:
0
Bravo
AF:
0.00139
ESP6500AA
AF:
0.00429
AC:
18
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000314
AC:
38

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Cardiovascular phenotype (1)
-
-
1
not provided (1)
-
-
1
Primary dilated cardiomyopathy (1)
-
-
1
TXNRD2-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
15
DANN
Benign
0.95
DEOGEN2
Benign
0.32
T
Eigen
Benign
-0.43
Eigen_PC
Benign
-0.33
FATHMM_MKL
Benign
0.26
N
LIST_S2
Uncertain
0.89
D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.0067
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.76
N
PhyloP100
0.46
PrimateAI
Benign
0.27
T
PROVEAN
Benign
0.88
N
REVEL
Benign
0.042
Sift
Benign
0.38
T
Sift4G
Benign
0.32
T
Polyphen
0.0040
B
Vest4
0.10
MVP
0.59
MPC
0.25
ClinPred
0.017
T
GERP RS
1.7
Varity_R
0.028
Mutation Taster
=96/4
polymorphism

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

Other links and lift over

dbSNP: rs201391000; hg19: chr22-19864680; API