rs140821039

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001999.4(FBN2):c.6655A>G(p.Ile2219Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000263 in 1,613,904 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. I2219I) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

FBN2
NM_001999.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: 2.06

Publications

5 publications found

Variant links:

Genes affected

FBN2 (HGNC:3604): (fibrillin 2) The protein encoded by this gene is a component of connective tissue microfibrils and may be involved in elastic fiber assembly. Mutations in this gene cause congenital contractural arachnodactyly. [provided by RefSeq, Jul 2008]

FBN2 Gene-Disease associations (from GenCC):

congenital contractural arachnodactyly
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, Orphanet
carpal tunnel syndrome
Inheritance: AD Classification: LIMITED Submitted by: Franklin by Genoox
macular degeneration, early-onset
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
familial thoracic aortic aneurysm and aortic dissection
Inheritance: Unknown Classification: LIMITED Submitted by: ClinGen

FBN2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.012028903).

BP6

Variant 5-128288540-T-C is Benign according to our data. Variant chr5-128288540-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 213246.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00106 (161/152334) while in subpopulation AFR AF = 0.00332 (138/41564). AF 95% confidence interval is 0.00287. There are 0 homozygotes in GnomAd4. There are 71 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 161 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001999.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FBN2	NM_001999.4	MANE Select	c.6655A>G	p.Ile2219Val	missense	Exon 53 of 65	NP_001990.2	P35556-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
FBN2	ENST00000262464.9	TSL:1 MANE Select	c.6655A>G	p.Ile2219Val	missense	Exon 53 of 65	ENSP00000262464.4	P35556-1
FBN2	ENST00000939405.1		c.6556A>G	p.Ile2186Val	missense	Exon 52 of 64	ENSP00000609464.1
FBN2	ENST00000939404.1		c.6502A>G	p.Ile2168Val	missense	Exon 52 of 64	ENSP00000609463.1

Frequencies

GnomAD3 genomes

AF:

0.00104

AC:

159

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00328

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00111

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:

0.0000588

Gnomad OTH

AF:

0.000956

GnomAD2 exomes

AF:

0.000291

AC:

AN:

251110

AF XY:

0.000295

show subpopulations

Gnomad AFR exome

AF:

0.00240

Gnomad AMR exome

AF:

0.000376

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000545

Gnomad FIN exome

AF:

0.0000466

Gnomad NFE exome

AF:

0.000141

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000181

AC:

264

AN:

1461570

Hom.:

Cov.:

AF XY:

0.000158

AC XY:

115

AN XY:

727128

show subpopulations

African (AFR)

AF:

0.00335

AC:

112

AN:

33478

American (AMR)

AF:

0.000358

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39686

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.0000376

AC:

AN:

53214

Middle Eastern (MID)

AF:

0.00139

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000809

AC:

AN:

1111918

Other (OTH)

AF:

0.000530

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00106

AC:

161

AN:

152334

Hom.:

Cov.:

AF XY:

0.000953

AC XY:

AN XY:

74488

show subpopulations

African (AFR)

AF:

0.00332

AC:

138

AN:

41564

American (AMR)

AF:

0.00111

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68038

Other (OTH)

AF:

0.000946

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000426

Hom.:

Bravo

AF:

0.00108

ESP6500AA

AF:

0.00182

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000313

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (5)

Congenital contractural arachnodactyly (2)

Ehlers-Danlos syndrome (1)

Familial thoracic aortic aneurysm and aortic dissection (1)

FBN2-related disorder (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.066

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.11

CADD

Benign

(source)

DANN

Benign

0.40

DEOGEN2

Benign

0.19

Eigen

Benign

-0.0074

Eigen_PC

Benign

0.047

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.30

M_CAP

Benign

0.067

MetaRNN

Benign

0.012

MetaSVM

Uncertain

0.0026

MutationAssessor

Benign

0.28

PhyloP100

2.1

PrimateAI

Benign

0.47

PROVEAN

Benign

0.070

REVEL

Uncertain

0.43

Sift

Benign

0.98

Polyphen

0.90

Vest4

0.14

MVP

0.79

MPC

0.20

ClinPred

0.059

GERP RS

4.7

Varity_R

0.049

gMVP

0.56

Mutation Taster

=60/40

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over