rs55699652

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The ENST00000316623.10(FBN1):​c.1147+28A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0128 in 1,613,280 control chromosomes in the GnomAD database, including 1,890 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 213 hom., cov: 32)
Exomes 𝑓: 0.012 ( 1677 hom. )

Consequence

FBN1
ENST00000316623.10 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.574
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BP6
Variant 15-48520631-T-C is Benign according to our data. Variant chr15-48520631-T-C is described in ClinVar as [Benign]. Clinvar id is 255285.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr15-48520631-T-C is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.229 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FBN1NM_000138.5 linkuse as main transcriptc.1147+28A>G intron_variant ENST00000316623.10 NP_000129.3
FBN1NM_001406716.1 linkuse as main transcriptc.1147+28A>G intron_variant NP_001393645.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FBN1ENST00000316623.10 linkuse as main transcriptc.1147+28A>G intron_variant 1 NM_000138.5 ENSP00000325527 P1
FBN1ENST00000559133.6 linkuse as main transcriptc.1147+28A>G intron_variant, NMD_transcript_variant 1 ENSP00000453958
FBN1ENST00000537463.6 linkuse as main transcriptc.636+17080A>G intron_variant, NMD_transcript_variant 5 ENSP00000440294
FBN1ENST00000674301.2 linkuse as main transcriptc.1147+28A>G intron_variant, NMD_transcript_variant ENSP00000501333

Frequencies

GnomAD3 genomes
AF:
0.0169
AC:
2570
AN:
152132
Hom.:
211
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00864
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0446
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.240
Gnomad SAS
AF:
0.0292
Gnomad FIN
AF:
0.00339
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00100
Gnomad OTH
AF:
0.0220
GnomAD3 exomes
AF:
0.0327
AC:
8198
AN:
250740
Hom.:
666
AF XY:
0.0295
AC XY:
3999
AN XY:
135528
show subpopulations
Gnomad AFR exome
AF:
0.00776
Gnomad AMR exome
AF:
0.0718
Gnomad ASJ exome
AF:
0.000695
Gnomad EAS exome
AF:
0.238
Gnomad SAS exome
AF:
0.0283
Gnomad FIN exome
AF:
0.00385
Gnomad NFE exome
AF:
0.00130
Gnomad OTH exome
AF:
0.0208
GnomAD4 exome
AF:
0.0124
AC:
18065
AN:
1461030
Hom.:
1677
Cov.:
31
AF XY:
0.0124
AC XY:
9004
AN XY:
726718
show subpopulations
Gnomad4 AFR exome
AF:
0.00795
Gnomad4 AMR exome
AF:
0.0694
Gnomad4 ASJ exome
AF:
0.000842
Gnomad4 EAS exome
AF:
0.259
Gnomad4 SAS exome
AF:
0.0252
Gnomad4 FIN exome
AF:
0.00358
Gnomad4 NFE exome
AF:
0.000767
Gnomad4 OTH exome
AF:
0.0192
GnomAD4 genome
AF:
0.0169
AC:
2579
AN:
152250
Hom.:
213
Cov.:
32
AF XY:
0.0196
AC XY:
1461
AN XY:
74432
show subpopulations
Gnomad4 AFR
AF:
0.00864
Gnomad4 AMR
AF:
0.0449
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.240
Gnomad4 SAS
AF:
0.0292
Gnomad4 FIN
AF:
0.00339
Gnomad4 NFE
AF:
0.00100
Gnomad4 OTH
AF:
0.0227
Alfa
AF:
0.00630
Hom.:
6
Bravo
AF:
0.0213
Asia WGS
AF:
0.123
AC:
426
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
4.6
DANN
Benign
0.65

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: rs55699652; hg19: chr15-48812828; COSMIC: COSV57312747; API