Genetic Variant TRDN:c.1975+9G>C (chr6-123252403-C-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_006073.4(TRDN):c.1975+9G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000401 in 1,496,108 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000037 ( 0 hom. )

Consequence

TRDN
NM_006073.4 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.49

Publications

1 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 Gene-Disease associations (from GenCC):

catecholaminergic polymorphic ventricular tachycardia
Inheritance: AD, AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
catecholaminergic polymorphic ventricular tachycardia 5
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
familial long QT syndrome
Inheritance: AR Classification: STRONG Submitted by: G2P
long QT syndrome
Inheritance: AR Classification: STRONG Submitted by: ClinGen

TRDN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006073.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRDN	NM_006073.4	MANE Select	c.1975+9G>C		intron	N/A	NP_006064.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
TRDN	ENST00000334268.9	TSL:1 MANE Select	c.1975+9G>C	intron	N/A	ENSP00000333984.5
TRDN	ENST00000962661.1		c.1978+9G>C	intron	N/A	ENSP00000632720.1
TRDN	ENST00000962654.1		c.1975+9G>C	intron	N/A	ENSP00000632713.1

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151642

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

GnomAD2 exomes

AF:

0.00000984

AC:

AN:

203214

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000222

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000372

AC:

AN:

1344466

Hom.:

Cov.:

AF XY:

0.00000299

AC XY:

AN XY:

668772

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30452

American (AMR)

AF:

0.00

AC:

AN:

37748

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23882

East Asian (EAS)

AF:

0.00

AC:

AN:

37904

South Asian (SAS)

AF:

0.00

AC:

AN:

73310

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50206

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5446

European-Non Finnish (NFE)

AF:

0.00000388

AC:

AN:

1029726

Other (OTH)

AF:

0.0000179

AC:

AN:

55792

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.415

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.00000659

AC:

AN:

151642

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74028

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41282

American (AMR)

AF:

0.00

AC:

AN:

15184

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3462

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10508

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67902

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000359

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.053

(source)

DANN

Benign

0.56

PhyloP100

-1.5

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over