5-128286744-C-A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP6

The NM_001999.4(FBN2):​c.6986G>T​(p.Arg2329Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,614,022 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

FBN2
NM_001999.4 missense

Scores

1
8
9

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 2.20
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 -1 ACMG points.

BP6
Variant 5-128286744-C-A is Benign according to our data. Variant chr5-128286744-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 569325.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FBN2NM_001999.4 linkc.6986G>T p.Arg2329Leu missense_variant 55/65 ENST00000262464.9 NP_001990.2 P35556-1
FBN2XM_017009228.3 linkc.6833G>T p.Arg2278Leu missense_variant 54/64 XP_016864717.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FBN2ENST00000262464.9 linkc.6986G>T p.Arg2329Leu missense_variant 55/651 NM_001999.4 ENSP00000262464.4 P35556-1
FBN2ENST00000703783.1 linkn.3770G>T non_coding_transcript_exon_variant 30/38

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251360
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135846
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461822
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152200
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000588
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenFeb 01, 2019- -
Congenital contractural arachnodactyly Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 03, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.010
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.63
D;.;D
Eigen
Benign
-0.046
Eigen_PC
Benign
0.086
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.78
T;.;.
M_CAP
Benign
0.066
D
MetaRNN
Uncertain
0.48
T;T;T
MetaSVM
Uncertain
-0.12
T
MutationAssessor
Benign
-0.64
N;.;N
PrimateAI
Benign
0.44
T
PROVEAN
Uncertain
-3.8
D;.;D
REVEL
Uncertain
0.49
Sift
Benign
0.28
T;.;T
Polyphen
0.85
P;.;P
Vest4
0.42
MutPred
0.63
Loss of disorder (P = 0.0544);.;Loss of disorder (P = 0.0544);
MVP
0.89
MPC
0.32
ClinPred
0.69
D
GERP RS
4.5
Varity_R
0.24
gMVP
0.89

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: rs370804151; hg19: chr5-127622436; COSMIC: COSV52543595; API