rs121434300

Variant names:

Variant summary

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

The NM_006329.4(FBLN5):c.212G>A(p.Arg71Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000192 in 1,613,846 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

FBLN5
NM_006329.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:3

Conservation

PhyloP100: 4.07

Variant links:

Genes affected

FBLN5 (HGNC:3602): (fibulin 5) The protein encoded by this gene is a secreted, extracellular matrix protein containing an Arg-Gly-Asp (RGD) motif and calcium-binding EGF-like domains. It promotes adhesion of endothelial cells through interaction of integrins and the RGD motif. It is prominently expressed in developing arteries but less so in adult vessels. However, its expression is reinduced in balloon-injured vessels and atherosclerotic lesions, notably in intimal vascular smooth muscle cells and endothelial cells. Therefore, the protein encoded by this gene may play a role in vascular development and remodeling. Defects in this gene are a cause of autosomal dominant cutis laxa, autosomal recessive cutis laxa type I (CL type I), and age-related macular degeneration type 3 (ARMD3). [provided by RefSeq, Jul 2008]

FBLN5 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 rank	MANE	Protein	UniProt
FBLN5	NM_006329.4 link	c.212G>A	p.Arg71Gln	missense_variant	Exon 4 of 11	ENST00000342058.9	NP_006320.2	Q9UBX5A0A024R6G3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FBLN5	ENST00000342058.9 link	c.212G>A	p.Arg71Gln	missense_variant	Exon 4 of 11	1	NM_006329.4	ENSP00000345008.4		Q9UBX5

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

151956

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000480

GnomAD3 exomes

AF:

0.0000201

AC:

AN:

248976

Hom.:

AF XY:

0.00000742

AC XY:

AN XY:

134776

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000449

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000216

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000197

AC:

AN:

151956

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74214

show subpopulations

Gnomad4 AFR

AF:

0.0000484

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000480

Alfa

AF:

0.0000445

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Macular degeneration, age-related, 3

Pathogenic:1Uncertain:1

Oct 06, 2021

Laboratory of Medical Genetics, National & Kapodistrian University of Athens

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PM2, PP3, PP5 -

Jul 22, 2004

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

not provided

Uncertain:1

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 71 of the FBLN5 protein (p.Arg71Gln). This variant is present in population databases (rs121434300, gnomAD 0.005%). This missense change has been observed in individual(s) with age-related macular degeneration (PMID: 15269314). ClinVar contains an entry for this variant (Variation ID: 5478). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. Experimental studies have shown that this missense change does not substantially affect FBLN5 function (PMID: 20007835). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Age-related macular degeneration

Uncertain:1

Jan 06, 2016

Inherited Neuropathy Consortium Ii, University Of Miami

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Pathogenic

0.28

BayesDel_noAF

Pathogenic

0.29

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.079

T;T;T;T

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.94

D;D;D;D

M_CAP

Uncertain

0.10

MetaRNN

Uncertain

0.51

D;D;D;D

MetaSVM

Uncertain

0.51

MutationAssessor

Uncertain

2.1

.;M;.;.

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-1.5

N;N;N;N

REVEL

Uncertain

0.61

Sift

Uncertain

0.019

D;D;D;D

Sift4G

Benign

0.10

T;D;D;D

Polyphen

1.0

D;D;D;.

Vest4

0.73

MutPred

0.43

Gain of catalytic residue at L108 (P = 9e-04);.;.;.;

MVP

0.93

MPC

1.2

ClinPred

0.52

GERP RS

5.6

Varity_R

0.35

gMVP

0.86

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

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