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rs779567163

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP6_ModerateBS2

The NM_001999.4(FBN2):c.5639C>T(p.Ala1880Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,614,026 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1880T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

FBN2
NM_001999.4 missense

Scores

5
13

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.16
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2
Missense variant where missense usually causes diseases, FBN2
BP6
Variant 5-128305546-G-A is Benign according to our data. Variant chr5-128305546-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 458773.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FBN2NM_001999.4 linkuse as main transcriptc.5639C>T p.Ala1880Val missense_variant 44/65 ENST00000262464.9
FBN2XM_017009228.3 linkuse as main transcriptc.5486C>T p.Ala1829Val missense_variant 43/64

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FBN2ENST00000262464.9 linkuse as main transcriptc.5639C>T p.Ala1880Val missense_variant 44/651 NM_001999.4 P1P35556-1
FBN2ENST00000703783.1 linkuse as main transcriptn.2423C>T non_coding_transcript_exon_variant 19/38
FBN2ENST00000703785.1 linkuse as main transcriptn.2342C>T non_coding_transcript_exon_variant 18/27

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152152
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251336
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135816
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000109
AC:
16
AN:
1461756
Hom.:
0
Cov.:
32
AF XY:
0.00000688
AC XY:
5
AN XY:
727180
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000895
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000989
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152270
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74454
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Congenital contractural arachnodactyly Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeSep 29, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.098
T
BayesDel_noAF
Benign
-0.15
Cadd
Benign
16
Dann
Benign
0.93
DEOGEN2
Uncertain
0.44
T;.;T
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.33
FATHMM_MKL
Benign
0.53
D
LIST_S2
Benign
0.18
T;.;.
M_CAP
Uncertain
0.13
D
MetaRNN
Uncertain
0.49
T;T;T
MetaSVM
Uncertain
-0.12
T
MutationAssessor
Benign
0.65
N;.;N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-1.7
N;.;N
REVEL
Uncertain
0.40
Sift
Benign
0.26
T;.;T
Polyphen
0.34
B;.;B
Vest4
0.25
MutPred
0.62
Loss of disorder (P = 0.0864);.;Loss of disorder (P = 0.0864);
MVP
0.57
MPC
0.24
ClinPred
0.24
T
GERP RS
5.3
Varity_R
0.048
gMVP
0.27

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs779567163; hg19: chr5-127641238; API