rs1465535140

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_006073.4(TRDN):c.803C>T(p.Ala268Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000658 in 152,056 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A268T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

TRDN
NM_006073.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.17

Publications

0 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 links:

TRDN-AS1 (HGNC:40592): (TRDN antisense RNA 1)

TRDN-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRDN	NM_006073.4 link	c.803C>T	p.Ala268Val	missense_variant	Exon 9 of 41	ENST00000334268.9	NP_006064.2	Q13061-1
TRDN	NM_001251987.2 link	c.803C>T	p.Ala268Val	missense_variant	Exon 9 of 21		NP_001238916.1	A0A590UJV0Q8IVK2
TRDN	NM_001407315.1 link	c.793+6476C>T		intron_variant	Intron 8 of 19		NP_001394244.1
TRDN	NM_001256020.2 link	c.793+6476C>T		intron_variant	Intron 8 of 8		NP_001242949.1	Q13061-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRDN	ENST00000334268.9 link	c.803C>T	p.Ala268Val	missense_variant	Exon 9 of 41	1	NM_006073.4	ENSP00000333984.5		Q13061-1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152056

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1395036

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

690002

African (AFR)

AF:

0.00

AC:

AN:

30304

American (AMR)

AF:

0.00

AC:

AN:

33098

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24456

East Asian (EAS)

AF:

0.00

AC:

AN:

36054

South Asian (SAS)

AF:

0.00

AC:

AN:

76696

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50784

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5630

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1080362

Other (OTH)

AF:

0.00

AC:

AN:

57652

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152056

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74268

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41440

American (AMR)

AF:

0.00

AC:

AN:

15256

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67954

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Catecholaminergic polymorphic ventricular tachycardia 1

Uncertain:1

Sep 28, 2017

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine with valine at codon 268 of the TRDN protein (p.Ala268Val). The alanine residue is moderately conserved and there is a small physicochemical difference between alanine and valine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with TRDN-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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

0.53

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.040

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.89

M_CAP

Benign

0.041

MetaRNN

Uncertain

0.46

MetaSVM

Benign

-0.60

MutationAssessor

Uncertain

2.4

PhyloP100

6.2

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-0.88

REVEL

Benign

0.27

Sift

Uncertain

0.0030

Sift4G

Benign

0.28

Polyphen

1.0

Vest4

0.51

MutPred

0.32

Loss of disorder (P = 0.1172);

MVP

0.64

ClinPred

0.93

GERP RS

6.0

Varity_R

0.19

gMVP

0.036

Mutation Taster

=78/22

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.28

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.28

Position offset: 9

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over