chr5-128291568-G-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BS2

The ENST00000262464.9(FBN2):​c.6253C>A​(p.Pro2085Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,728 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P2085A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

FBN2
ENST00000262464.9 missense

Scores

2
5
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.25
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.

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.
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FBN2NM_001999.4 linkuse as main transcriptc.6253C>A p.Pro2085Thr missense_variant 49/65 ENST00000262464.9 NP_001990.2
FBN2XM_017009228.3 linkuse as main transcriptc.6100C>A p.Pro2034Thr missense_variant 48/64 XP_016864717.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FBN2ENST00000262464.9 linkuse as main transcriptc.6253C>A p.Pro2085Thr missense_variant 49/651 NM_001999.4 ENSP00000262464 P1P35556-1
FBN2ENST00000703783.1 linkuse as main transcriptn.3037C>A non_coding_transcript_exon_variant 24/38
FBN2ENST00000703785.1 linkuse as main transcriptn.2956C>A non_coding_transcript_exon_variant 23/27

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251186
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135750
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:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461728
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727170
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAiLife Diagnostics, AiLife DiagnosticsOct 04, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.016
T
BayesDel_noAF
Benign
-0.26
CADD
Benign
20
DANN
Benign
0.95
DEOGEN2
Uncertain
0.69
D;.;D
Eigen
Benign
-0.042
Eigen_PC
Benign
0.12
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Benign
0.79
T;.;.
M_CAP
Pathogenic
0.63
D
MetaRNN
Uncertain
0.62
D;D;D
MetaSVM
Uncertain
0.20
D
MutationAssessor
Benign
0.80
N;.;N
MutationTaster
Benign
0.52
N;N
PrimateAI
Benign
0.48
T
PROVEAN
Uncertain
-3.1
D;.;D
REVEL
Pathogenic
0.74
Sift
Benign
0.26
T;.;T
Polyphen
0.0010
B;.;B
Vest4
0.43
MutPred
0.55
Loss of catalytic residue at P2084 (P = 0.0415);.;Loss of catalytic residue at P2084 (P = 0.0415);
MVP
0.41
MPC
0.44
ClinPred
0.33
T
GERP RS
4.4
Varity_R
0.20
gMVP
0.33

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: rs34845843; hg19: chr5-127627260; API