6-123393627-G-T

Variant names:

• chr6-123393627-G-T
• NM_006073.4:c.1102C>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_006073.4(TRDN):​c.1102C>A​(p.Gln368Lys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: TRDN NM_006073.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.26

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)

ACMG classification

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=0.25515205).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRDN	NM_006073.4	c.1102C>A	p.Gln368Lys	missense_variant	Exon 13 of 41	ENST00000334268.9	NP_006064.2
TRDN	NM_001251987.2	c.1105C>A	p.Gln369Lys	missense_variant	Exon 13 of 21		NP_001238916.1
TRDN	NM_001407315.1	c.1045C>A	p.Gln349Lys	missense_variant	Exon 12 of 20		NP_001394244.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRDN	ENST00000334268.9	c.1102C>A	p.Gln368Lys	missense_variant	Exon 13 of 41	1	NM_006073.4	ENSP00000333984.5
TRDN	ENST00000662930.1	c.1105C>A	p.Gln369Lys	missense_variant	Exon 13 of 21			ENSP00000499585.1
TRDN-AS1	ENST00000587106.6	n.55+4152G>T		intron_variant	Intron 1 of 8	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1451450 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 721088

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Cardiovascular phenotype Uncertain:1

Dec 21, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Q368K variant (also known as c.1102C>A), located in coding exon 13 of the TRDN gene, results from a C to A substitution at nucleotide position 1102. The glutamine at codon 368 is replaced by lysine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.079
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	20
DANN	Benign	0.91
DEOGEN2	Benign	0.13	T
Eigen	Benign	0.15
Eigen_PC	Benign	0.22
FATHMM_MKL	Benign	0.72	D
LIST_S2	Benign	0.53	T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.26	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.81	L
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-0.22	N
REVEL	Benign	0.074
Sift	Pathogenic	0.0	D
Sift4G	Benign	0.82	T
Polyphen		0.98	D
Vest4		0.15
MutPred		0.27		Gain of methylation at Q368 (P = 0.0183);
MVP		0.15
ClinPred		0.40	T
GERP RS		5.2
Varity_R		0.31
gMVP		0.0073

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-123714772;