Variant chr3-13570830-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001004019.2(FBLN2):c.475G>A(p.Ala159Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000025 in 1,602,484 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

FBLN2
NM_001004019.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.78

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
FBLN2	NM_001004019.2 linkuse as main transcript	c.475G>A	p.Ala159Thr	missense_variant	2/18	ENST00000404922.8
FBLN2	NM_001165035.2 linkuse as main transcript	c.475G>A	p.Ala159Thr	missense_variant	2/18
FBLN2	NM_001998.3 linkuse as main transcript	c.475G>A	p.Ala159Thr	missense_variant	2/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FBLN2	ENST00000404922.8 linkuse as main transcript	c.475G>A	p.Ala159Thr	missense_variant	2/18	5	NM_001004019.2	P1	P98095-2
FBLN2	ENST00000295760.11 linkuse as main transcript	c.475G>A	p.Ala159Thr	missense_variant	2/17	1			P98095-1
FBLN2	ENST00000492059.5 linkuse as main transcript	c.475G>A	p.Ala159Thr	missense_variant	2/18	2		P1	P98095-2
FBLN2	ENST00000465610.1 linkuse as main transcript	c.475G>A	p.Ter159=	incomplete_terminal_codon_variant, coding_sequence_variant	2/2	2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152226

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:

0.000386

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000440

AC:

AN:

227320

Hom.:

AF XY:

0.00

AC XY:

AN XY:

124600

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000606

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000138

AC:

AN:

1450258

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

720696

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000513

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

AF:

0.0000131

AC:

AN:

152226

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74364

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000386

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

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

Oct 10, 2023

The c.475G>A (p.A159T) alteration is located in exon 2 (coding exon 1) of the FBLN2 gene. This alteration results from a G to A substitution at nucleotide position 475, causing the alanine (A) at amino acid position 159 to be replaced by a threonine (T). 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

0.14

BayesDel_addAF

Benign

-0.062

BayesDel_noAF

Benign

-0.33

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.19

.;T;.

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.91

.;D;D

M_CAP

Uncertain

0.15

MetaRNN

Uncertain

0.44

T;T;T

MetaSVM

Benign

-0.67

MutationAssessor

Benign

1.9

M;M;M

MutationTaster

Benign

0.93

N;N;N;N

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.98

N;N;N

REVEL

Benign

0.10

Sift

Uncertain

0.018

D;D;D

Sift4G

Uncertain

0.033

D;D;D

Polyphen

0.99

D;D;D

Vest4

0.35

MVP

0.38

MPC

0.56

ClinPred

0.80

GERP RS

5.1

Varity_R

0.12

gMVP

0.48

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

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