14-74503325-C-T

Position:

chr14-74503325-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_000428.3(LTBP2):c.4782G>A(p.Val1594Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00381 in 1,613,964 control chromosomes in the GnomAD database, including 228 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.020 ( 104 hom., cov: 33)

Exomes 𝑓: 0.0021 ( 124 hom. )

Consequence

LTBP2
NM_000428.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.679

Variant links:

Genes affected

LTBP2 (HGNC:6715): (latent transforming growth factor beta binding protein 2) The protein encoded by this gene belongs to the family of latent transforming growth factor (TGF)-beta binding proteins (LTBP), which are extracellular matrix proteins with multi-domain structure. This protein is the largest member of the LTBP family possessing unique regions and with most similarity to the fibrillins. It has thus been suggested that it may have multiple functions: as a member of the TGF-beta latent complex, as a structural component of microfibrils, and a role in cell adhesion. [provided by RefSeq, Jul 2008]

LTBP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.44).

BP6

Variant 14-74503325-C-T is Benign according to our data. Variant chr14-74503325-C-T is described in ClinVar as [Benign]. Clinvar id is 256099.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-74503325-C-T is described in Lovd as [Benign].

BP7

Synonymous conserved (PhyloP=0.679 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0682 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LTBP2	NM_000428.3 linkuse as main transcript	c.4782G>A	p.Val1594Val	synonymous_variant	33/36	ENST00000261978.9	NP_000419.1	Q14767

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
LTBP2	ENST00000261978.9 linkuse as main transcript	c.4782G>A	p.Val1594Val	synonymous_variant	33/36	1	NM_000428.3	ENSP00000261978.4	Q14767
LTBP2	ENST00000556690.5 linkuse as main transcript	c.4650G>A	p.Val1550Val	synonymous_variant	32/35	5		ENSP00000451477.1	G3V3X5
LTBP2	ENST00000553939.5 linkuse as main transcript	n.4782G>A		non_coding_transcript_exon_variant	33/36	5		ENSP00000452110.1	G3V511

Frequencies

GnomAD3 genomes

AF:

0.0199

AC:

3028

AN:

152244

Hom.:

103

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0702

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00517

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.0153

GnomAD3 exomes

AF:

0.00512

AC:

1283

AN:

250594

Hom.:

AF XY:

0.00367

AC XY:

498

AN XY:

135546

show subpopulations

Gnomad AFR exome

AF:

0.0732

Gnomad AMR exome

AF:

0.00208

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000882

Gnomad OTH exome

AF:

0.00196

GnomAD4 exome

AF:

0.00212

AC:

3105

AN:

1461602

Hom.:

124

Cov.:

AF XY:

0.00181

AC XY:

1316

AN XY:

727132

show subpopulations

Gnomad4 AFR exome

AF:

0.0781

Gnomad4 AMR exome

AF:

0.00291

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000162

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000423

Gnomad4 OTH exome

AF:

0.00484

GnomAD4 genome

AF:

0.0200

AC:

3041

AN:

152362

Hom.:

104

Cov.:

AF XY:

0.0194

AC XY:

1446

AN XY:

74510

show subpopulations

Gnomad4 AFR

AF:

0.0703

Gnomad4 AMR

AF:

0.00509

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.0151

Alfa

AF:

0.0121

Hom.:

Bravo

AF:

0.0225

Asia WGS

AF:

0.00606

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000178

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:3

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 08, 2018	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

- -

Weill-Marchesani syndrome

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Glaucoma 3, primary congenital, D

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.44

CADD

Benign

3.5

DANN

Benign

0.76

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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