Variant chr17-39665378-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_003673.4(TCAP):c.19A>G(p.Ser7Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,504 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TCAP
NM_003673.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.64

Variant links:

Genes affected

TCAP (HGNC:11610): (titin-cap) Sarcomere assembly is regulated by the muscle protein titin. Titin is a giant elastic protein with kinase activity that extends half the length of a sarcomere. It serves as a scaffold to which myofibrils and other muscle related proteins are attached. This gene encodes a protein found in striated and cardiac muscle that binds to the titin Z1-Z2 domains and is a substrate of titin kinase, interactions thought to be critical to sarcomere assembly. Mutations in this gene are associated with limb-girdle muscular dystrophy type 2G. [provided by RefSeq, Jul 2008]

TCAP links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2865554).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TCAP	NM_003673.4 linkuse as main transcript	c.19A>G	p.Ser7Gly	missense_variant	1/2	ENST00000309889.3	NP_003664.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TCAP	ENST00000309889.3 linkuse as main transcript	c.19A>G	p.Ser7Gly	missense_variant	1/2	1	NM_003673.4	ENSP00000312624	P1
TCAP	ENST00000578283.1 linkuse as main transcript	c.19A>G	p.Ser7Gly	missense_variant	1/3	5		ENSP00000462787

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461504

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727064

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 21, 2023

The p.S7G variant (also known as c.19A>G), located in coding exon 1 of the TCAP gene, results from an A to G substitution at nucleotide position 19. The serine at codon 7 is replaced by glycine, 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. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.032

BayesDel_noAF

Benign

-0.28

CADD

Benign

DANN

Benign

0.84

DEOGEN2

Uncertain

0.43

T;.

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.095

FATHMM_MKL

Benign

0.57

LIST_S2

Benign

0.63

T;T

M_CAP

Benign

0.060

MetaRNN

Benign

0.29

T;T

MetaSVM

Benign

-0.57

MutationAssessor

Benign

1.3

L;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.44

PROVEAN

Benign

-1.9

N;.

REVEL

Benign

0.23

Sift

Uncertain

0.0080

D;.

Sift4G

Uncertain

0.026

D;D

Polyphen

0.0010

B;.

Vest4

0.054

MutPred

0.39

Loss of phosphorylation at S7 (P = 0.0189);Loss of phosphorylation at S7 (P = 0.0189);

MVP

0.87

MPC

0.30

ClinPred

0.71

GERP RS

4.2

Varity_R

0.47

gMVP

0.19

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over