Variant 5-128286748-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_Strong

The ENST00000262464.9(FBN2):c.6982G>A(p.Ala2328Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,230 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A2328S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

FBN2
ENST00000262464.9 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.249

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 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), FBN2. . Gene score misZ 1.5491 (greater than the threshold 3.09). Trascript score misZ 3.2752 (greater than threshold 3.09). GenCC has associacion of gene with familial thoracic aortic aneurysm and aortic dissection, carpal tunnel syndrome, macular degeneration, early-onset, congenital contractural arachnodactyly.

BP4

Computational evidence support a benign effect (MetaRNN=0.035316914).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FBN2	NM_001999.4 linkuse as main transcript	c.6982G>A	p.Ala2328Thr	missense_variant	55/65	ENST00000262464.9	NP_001990.2
FBN2	XM_017009228.3 linkuse as main transcript	c.6829G>A	p.Ala2277Thr	missense_variant	54/64		XP_016864717.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FBN2	ENST00000262464.9 linkuse as main transcript	c.6982G>A	p.Ala2328Thr	missense_variant	55/65	1	NM_001999.4	ENSP00000262464	P1	P35556-1
FBN2	ENST00000703783.1 linkuse as main transcript	n.3766G>A		non_coding_transcript_exon_variant	30/38

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74380

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.058

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.53

CADD

Benign

0.52

DANN

Benign

0.73

DEOGEN2

Benign

0.19

T;.;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.44

T;.;.

M_CAP

Benign

0.042

MetaRNN

Benign

0.035

T;T;T

MetaSVM

Benign

-0.85

MutationAssessor

Benign

-1.3

N;.;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.29

PROVEAN

Benign

0.10

N;.;N

REVEL

Benign

0.19

Sift

Benign

0.76

T;.;T

Polyphen

0.0

B;.;B

Vest4

0.055

MutPred

0.34

Gain of glycosylation at A2328 (P = 0.0049);.;Gain of glycosylation at A2328 (P = 0.0049);

MVP

0.29

MPC

0.23

ClinPred

0.038

GERP RS

0.098

Varity_R

0.038

gMVP

0.59

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over