15-48444574-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PP2PP5_Moderate

The NM_000138.5(FBN1):​c.6004C>T​(p.Pro2002Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,354 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

FBN1
NM_000138.5 missense

Scores

4
9
4

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 5.14
Variant links:
Genes affected
FBN1 (HGNC:3603): (fibrillin 1) This gene encodes a member of the fibrillin family of proteins. The encoded preproprotein is proteolytically processed to generate two proteins including the extracellular matrix component fibrillin-1 and the protein hormone asprosin. Fibrillin-1 is an extracellular matrix glycoprotein that serves as a structural component of calcium-binding microfibrils. These microfibrils provide force-bearing structural support in elastic and nonelastic connective tissue throughout the body. Asprosin, secreted by white adipose tissue, has been shown to regulate glucose homeostasis. Mutations in this gene are associated with Marfan syndrome and the related MASS phenotype, as well as ectopia lentis syndrome, Weill-Marchesani syndrome, Shprintzen-Goldberg syndrome and neonatal progeroid syndrome. [provided by RefSeq, Apr 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM1
In a domain EGF-like 34; calcium-binding (size 39) in uniprot entity FBN1_HUMAN there are 14 pathogenic changes around while only 0 benign (100%) in NM_000138.5
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), FBN1. . Gene score misZ 5.0644 (greater than the threshold 3.09). Trascript score misZ 8.1787 (greater than threshold 3.09). GenCC has associacion of gene with MASS syndrome, Weill-Marchesani syndrome, geleophysic dysplasia, Shprintzen-Goldberg syndrome, Acromicric dysplasia, familial thoracic aortic aneurysm and aortic dissection, progeroid and marfanoid aspect-lipodystrophy syndrome, ectopia lentis 1, isolated, autosomal dominant, Marfan syndrome, Weill-Marchesani syndrome 2, dominant, isolated ectopia lentis, neonatal Marfan syndrome, stiff skin syndrome.
PP5
Variant 15-48444574-G-A is Pathogenic according to our data. Variant chr15-48444574-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 375299.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FBN1NM_000138.5 linkuse as main transcriptc.6004C>T p.Pro2002Ser missense_variant 49/66 ENST00000316623.10 NP_000129.3
FBN1NM_001406716.1 linkuse as main transcriptc.6004C>T p.Pro2002Ser missense_variant 48/65 NP_001393645.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FBN1ENST00000316623.10 linkuse as main transcriptc.6004C>T p.Pro2002Ser missense_variant 49/661 NM_000138.5 ENSP00000325527 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461354
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
726984
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Marfan syndrome;C0220668:Congenital contractural arachnodactyly Pathogenic:1
Likely pathogenic, criteria provided, single submitterresearchDiagnostics Division, CENTRE FOR DNA FINGERPRINTING AND DIAGNOSTICSJan 01, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.060
CADD
Pathogenic
27
DANN
Uncertain
1.0
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
D
M_CAP
Uncertain
0.12
D
MetaRNN
Uncertain
0.65
D
MetaSVM
Uncertain
0.72
D
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.63
T
PROVEAN
Pathogenic
-5.1
D
REVEL
Uncertain
0.55
Sift
Benign
0.040
D
Sift4G
Benign
0.11
T
Vest4
0.52
MutPred
0.60
Gain of catalytic residue at P2002 (P = 0.0059);
MVP
0.78
MPC
1.1
ClinPred
0.99
D
GERP RS
6.1

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1057519320; hg19: chr15-48736771; API