rs150412658

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_006073.4(TRDN):​c.826A>G​(p.Ile276Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000962 in 1,559,626 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000078 ( 0 hom. )

Consequence

TRDN
NM_006073.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.62

Publications

2 publications found
Variant links:
Genes affected
TRDN (HGNC:12261): (triadin) This gene encodes an integral membrane protein found in skeletal and cardiac muscle. The encoded protein plays a role in skeletal muscle excitation-contraction coupling as part of the calcium release complex and is required for normal skeletal muscle strength. This protein indirectly links triads and microtubules in skeletal muscle. Mutations in this gene are associated with cardiac arrythmia syndrome and some variants in this gene may be associated with sudden cardiac death. [provided by RefSeq, May 2022]
TRDN-AS1 (HGNC:40592): (TRDN antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.09707701).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TRDNNM_006073.4 linkc.826A>G p.Ile276Val missense_variant Exon 9 of 41 ENST00000334268.9 NP_006064.2 Q13061-1
TRDNNM_001251987.2 linkc.826A>G p.Ile276Val missense_variant Exon 9 of 21 NP_001238916.1 A0A590UJV0Q8IVK2
TRDNNM_001407315.1 linkc.793+6499A>G intron_variant Intron 8 of 19 NP_001394244.1
TRDNNM_001256020.2 linkc.793+6499A>G intron_variant Intron 8 of 8 NP_001242949.1 Q13061-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TRDNENST00000334268.9 linkc.826A>G p.Ile276Val missense_variant Exon 9 of 41 1 NM_006073.4 ENSP00000333984.5 Q13061-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152102
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000562
AC:
1
AN:
178018
AF XY:
0.0000105
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000406
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000782
AC:
11
AN:
1407406
Hom.:
0
Cov.:
29
AF XY:
0.00000574
AC XY:
4
AN XY:
696430
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31088
American (AMR)
AF:
0.0000564
AC:
2
AN:
35478
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24864
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36890
South Asian (SAS)
AF:
0.00
AC:
0
AN:
78344
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51130
Middle Eastern (MID)
AF:
0.000177
AC:
1
AN:
5646
European-Non Finnish (NFE)
AF:
0.00000553
AC:
6
AN:
1085794
Other (OTH)
AF:
0.0000344
AC:
2
AN:
58172
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.452
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000263
AC:
4
AN:
152220
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74430
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41574
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
67962
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000264

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Jun 17, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Catecholaminergic polymorphic ventricular tachycardia 1 Uncertain:1
Dec 11, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 276 of the TRDN protein (p.Ile276Val). This variant is present in population databases (rs150412658, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with TRDN-related conditions. ClinVar contains an entry for this variant (Variation ID: 572676). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt TRDN protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Cardiovascular phenotype Uncertain:1
Sep 03, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.826A>G (p.I276V) alteration is located in exon 9 (coding exon 9) of the TRDN gene. This alteration results from a A to G substitution at nucleotide position 826, causing the isoleucine (I) at amino acid position 276 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
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.39
CADD
Uncertain
24
DANN
Benign
0.64
DEOGEN2
Benign
0.15
T
Eigen
Benign
-0.10
Eigen_PC
Benign
0.14
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.76
T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.097
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N
PhyloP100
3.6
PrimateAI
Benign
0.41
T
PROVEAN
Benign
0.010
N
REVEL
Benign
0.073
Sift
Uncertain
0.015
D
Sift4G
Benign
0.41
T
Polyphen
0.0040
B
Vest4
0.24
MVP
0.45
ClinPred
0.082
T
GERP RS
6.0
Varity_R
0.086
gMVP
0.011
Mutation Taster
=84/16
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.19
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: rs150412658; hg19: chr6-123818365; API