Variant 3-13571173-T-C details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001004019.2(FBLN2):c.818T>C(p.Val273Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

FBLN2
NM_001004019.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.512

Variant links:

Genes affected

FBLN2 (HGNC:3601): (fibulin 2) This gene encodes an extracellular matrix protein, which belongs to the fibulin family. This protein binds various extracellular ligands and calcium. It may play a role during organ development, in particular, during the differentiation of heart, skeletal and neuronal structures. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

FBLN2 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=0.28566617).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
FBLN2	NM_001004019.2 linkuse as main transcript	c.818T>C	p.Val273Ala	missense_variant	2/18	ENST00000404922.8
FBLN2	NM_001165035.2 linkuse as main transcript	c.818T>C	p.Val273Ala	missense_variant	2/18
FBLN2	NM_001998.3 linkuse as main transcript	c.818T>C	p.Val273Ala	missense_variant	2/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FBLN2	ENST00000404922.8 linkuse as main transcript	c.818T>C	p.Val273Ala	missense_variant	2/18	5	NM_001004019.2	P1	P98095-2
FBLN2	ENST00000295760.11 linkuse as main transcript	c.818T>C	p.Val273Ala	missense_variant	2/17	1			P98095-1
FBLN2	ENST00000492059.5 linkuse as main transcript	c.818T>C	p.Val273Ala	missense_variant	2/18	2		P1	P98095-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1411074

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

696920

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.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 16, 2023

The c.818T>C (p.V273A) alteration is located in exon 2 (coding exon 1) of the FBLN2 gene. This alteration results from a T to C substitution at nucleotide position 818, causing the valine (V) at amino acid position 273 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.037

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.11

.;T;.

Eigen

Uncertain

0.22

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.59

.;T;T

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.29

T;T;T

MetaSVM

Benign

-0.54

MutationAssessor

Benign

1.6

L;L;L

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-0.96

N;N;N

REVEL

Benign

0.26

Sift

Benign

0.16

T;T;T

Sift4G

Benign

0.19

T;T;T

Polyphen

1.0

D;D;D

Vest4

0.20

MVP

0.71

MPC

0.30

ClinPred

0.53

GERP RS

5.4

Varity_R

0.065

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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