rs28763953

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The ENST00000262464.9(FBN2):​c.1231+37C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0426 in 1,611,942 control chromosomes in the GnomAD database, including 1,664 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.030 ( 94 hom., cov: 32)
Exomes 𝑓: 0.044 ( 1570 hom. )

Consequence

FBN2
ENST00000262464.9 intron

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -2.25
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 5-128395085-G-C is Benign according to our data. Variant chr5-128395085-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 258507.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0305 (4641/152284) while in subpopulation NFE AF= 0.0439 (2984/68010). AF 95% confidence interval is 0.0426. There are 94 homozygotes in gnomad4. There are 2152 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 4641 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FBN2NM_001999.4 linkuse as main transcriptc.1231+37C>G intron_variant ENST00000262464.9 NP_001990.2
FBN2XM_017009228.3 linkuse as main transcriptc.1079-1717C>G intron_variant XP_016864717.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FBN2ENST00000262464.9 linkuse as main transcriptc.1231+37C>G intron_variant 1 NM_001999.4 ENSP00000262464 P1P35556-1
FBN2ENST00000508989.5 linkuse as main transcriptc.1132+37C>G intron_variant 2 ENSP00000425596
FBN2ENST00000703787.1 linkuse as main transcriptn.938+37C>G intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.0305
AC:
4640
AN:
152166
Hom.:
93
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00878
Gnomad AMI
AF:
0.0241
Gnomad AMR
AF:
0.0390
Gnomad ASJ
AF:
0.0605
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.0211
Gnomad FIN
AF:
0.0275
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0439
Gnomad OTH
AF:
0.0311
GnomAD3 exomes
AF:
0.0350
AC:
8772
AN:
250556
Hom.:
205
AF XY:
0.0341
AC XY:
4612
AN XY:
135426
show subpopulations
Gnomad AFR exome
AF:
0.00757
Gnomad AMR exome
AF:
0.0472
Gnomad ASJ exome
AF:
0.0655
Gnomad EAS exome
AF:
0.000218
Gnomad SAS exome
AF:
0.0221
Gnomad FIN exome
AF:
0.0341
Gnomad NFE exome
AF:
0.0418
Gnomad OTH exome
AF:
0.0359
GnomAD4 exome
AF:
0.0439
AC:
64059
AN:
1459658
Hom.:
1570
Cov.:
31
AF XY:
0.0431
AC XY:
31300
AN XY:
726244
show subpopulations
Gnomad4 AFR exome
AF:
0.00694
Gnomad4 AMR exome
AF:
0.0454
Gnomad4 ASJ exome
AF:
0.0644
Gnomad4 EAS exome
AF:
0.000177
Gnomad4 SAS exome
AF:
0.0232
Gnomad4 FIN exome
AF:
0.0331
Gnomad4 NFE exome
AF:
0.0484
Gnomad4 OTH exome
AF:
0.0415
GnomAD4 genome
AF:
0.0305
AC:
4641
AN:
152284
Hom.:
94
Cov.:
32
AF XY:
0.0289
AC XY:
2152
AN XY:
74470
show subpopulations
Gnomad4 AFR
AF:
0.00876
Gnomad4 AMR
AF:
0.0391
Gnomad4 ASJ
AF:
0.0605
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.0211
Gnomad4 FIN
AF:
0.0275
Gnomad4 NFE
AF:
0.0439
Gnomad4 OTH
AF:
0.0308
Alfa
AF:
0.0407
Hom.:
21
Bravo
AF:
0.0306
Asia WGS
AF:
0.0120
AC:
41
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 14, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
0.078
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: rs28763953; hg19: chr5-127730778; API