chr3-13570425-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001004019.2(FBLN2):​c.70G>A​(p.Val24Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000087 in 1,574,332 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000079 ( 1 hom. )

Consequence

FBLN2
NM_001004019.2 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.75
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.018014044).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FBLN2NM_001004019.2 linkuse as main transcriptc.70G>A p.Val24Met missense_variant 2/18 ENST00000404922.8
FBLN2NM_001165035.2 linkuse as main transcriptc.70G>A p.Val24Met missense_variant 2/18
FBLN2NM_001998.3 linkuse as main transcriptc.70G>A p.Val24Met missense_variant 2/17

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FBLN2ENST00000404922.8 linkuse as main transcriptc.70G>A p.Val24Met missense_variant 2/185 NM_001004019.2 P1P98095-2
FBLN2ENST00000295760.11 linkuse as main transcriptc.70G>A p.Val24Met missense_variant 2/171 P98095-1
FBLN2ENST00000492059.5 linkuse as main transcriptc.70G>A p.Val24Met missense_variant 2/182 P1P98095-2
FBLN2ENST00000465610.1 linkuse as main transcriptc.70G>A p.Val24Met missense_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.000158
AC:
24
AN:
152168
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000139
AC:
25
AN:
179644
Hom.:
1
AF XY:
0.000153
AC XY:
15
AN XY:
98226
show subpopulations
Gnomad AFR exome
AF:
0.000634
Gnomad AMR exome
AF:
0.000107
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000739
Gnomad SAS exome
AF:
0.000366
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000796
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000795
AC:
113
AN:
1422046
Hom.:
1
Cov.:
33
AF XY:
0.0000796
AC XY:
56
AN XY:
703440
show subpopulations
Gnomad4 AFR exome
AF:
0.000641
Gnomad4 AMR exome
AF:
0.000101
Gnomad4 ASJ exome
AF:
0.0000393
Gnomad4 EAS exome
AF:
0.0000529
Gnomad4 SAS exome
AF:
0.000148
Gnomad4 FIN exome
AF:
0.0000209
Gnomad4 NFE exome
AF:
0.0000631
Gnomad4 OTH exome
AF:
0.0000510
GnomAD4 genome
AF:
0.000158
AC:
24
AN:
152286
Hom.:
0
Cov.:
34
AF XY:
0.000161
AC XY:
12
AN XY:
74444
show subpopulations
Gnomad4 AFR
AF:
0.000481
Gnomad4 AMR
AF:
0.0000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000113
Hom.:
0
Bravo
AF:
0.000196
ESP6500AA
AF:
0.000765
AC:
3
ESP6500EA
AF:
0.000122
AC:
1
ExAC
AF:
0.000162
AC:
19

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 submitterclinical testingAmbry GeneticsOct 20, 2021The c.70G>A (p.V24M) 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 70, causing the valine (V) at amino acid position 24 to be replaced by a methionine (M). 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
0.096
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
0.035
DANN
Benign
0.69
DEOGEN2
Benign
0.091
.;T;T;.
Eigen
Benign
-1.9
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.026
N
LIST_S2
Benign
0.45
.;T;T;T
M_CAP
Benign
0.053
D
MetaRNN
Benign
0.018
T;T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
-0.20
N;N;.;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
0.020
N;N;N;N
REVEL
Benign
0.017
Sift
Benign
0.23
T;T;T;T
Sift4G
Benign
0.28
T;T;T;T
Polyphen
0.0010
B;B;.;B
Vest4
0.076
MVP
0.41
MPC
0.12
ClinPred
0.0078
T
GERP RS
-8.4
Varity_R
0.023
gMVP
0.11

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.

Other links and lift over

dbSNP: rs375179920; hg19: chr3-13611925; COSMIC: COSV55484124; API