rs764897557

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006073.4(TRDN):c.17C>T(p.Ala6Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000124 in 1,611,388 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

TRDN
NM_006073.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 4.42

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 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14458907).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TRDN	NM_006073.4 linkuse as main transcript	c.17C>T	p.Ala6Val	missense_variant	1/41	ENST00000334268.9
LOC105377981	XR_942943.3 linkuse as main transcript	n.187-18900G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TRDN	ENST00000334268.9 linkuse as main transcript	c.17C>T	p.Ala6Val	missense_variant	1/41	1	NM_006073.4	A2	Q13061-1
	ENST00000650190.1 linkuse as main transcript	n.471+18229G>A		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151802

Hom.:

Cov.:

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000161

AC:

AN:

248062

Hom.:

AF XY:

0.0000149

AC XY:

AN XY:

134564

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000356

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000123

AC:

AN:

1459586

Hom.:

Cov.:

AF XY:

0.00000826

AC XY:

AN XY:

726102

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000153

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151802

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74108

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000283

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000331

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

May 26, 2017

Variant classified as Uncertain Significance - Favor Benign. The p.Ala6Val varia nt in TRDN has not been previously reported in individuals with cardiomyopathy, but has been identified in 4/125950 European chromosomes by the Genome Aggregati on Database (http://gnomad.broadinstitute.org; dbSNP rs764897557). This variant has been reported in ClinVar (Variation ID: 240284). Alanine (Ala) at position 6 is not well conserved in mammals or evolutionarily distant species, with Cape g olden mole and X. tropicalis carrying a valine (Val), raising the possibility th at a change at this position may be tolerated. Additional computational predicti on tools suggest that this variant may not impact the protein, though this infor mation is not predictive enough to rule out pathogenicity. In summary, while the clinical significance of the p.Ala6Val variant is uncertain, these data suggest that it is more likely to be benign. -

Catecholaminergic polymorphic ventricular tachycardia 1;C3809536:Catecholaminergic polymorphic ventricular tachycardia 5

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Aug 31, 2021

- -

Catecholaminergic polymorphic ventricular tachycardia 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Aug 28, 2021

This sequence change replaces alanine with valine at codon 6 of the TRDN protein (p.Ala6Val). The alanine residue is weakly conserved and there is a small physicochemical difference between alanine and valine. This variant is present in population databases (rs764897557, ExAC 0.006%). 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: 240284). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.42

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.41

Cadd

Uncertain

Dann

Uncertain

1.0

DEOGEN2

Benign

0.11

T;.;.;.

Eigen

Benign

0.10

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.84

T;T;T;T

M_CAP

Benign

0.0076

MetaRNN

Benign

0.14

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.46

N;N;.;N

MutationTaster

Benign

0.70

N;N;N;N

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-0.74

N;.;N;N

REVEL

Benign

0.090

Sift

Benign

0.14

T;.;T;T

Sift4G

Benign

0.10

T;T;T;T

Polyphen

0.66

P;.;.;.

Vest4

0.17

MutPred

0.63

Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);

MVP

0.34

ClinPred

0.25

GERP RS

5.7

Varity_R

0.11

gMVP

0.71

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over