5-128350042-G-T

Variant summary

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

The NM_001999.4(FBN2):​c.2813-37C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0314 in 1,523,168 control chromosomes in the GnomAD database, including 862 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.022 ( 62 hom., cov: 33)
Exomes 𝑓: 0.032 ( 800 hom. )

Consequence

FBN2
NM_001999.4 intron

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.0510
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 5-128350042-G-T is Benign according to our data. Variant chr5-128350042-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 258513.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 = 0.0217 (3301/152212) while in subpopulation NFE AF= 0.0367 (2495/68012). AF 95% confidence interval is 0.0355. There are 62 homozygotes in gnomad4. There are 1488 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 3301 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FBN2NM_001999.4 linkuse as main transcriptc.2813-37C>A intron_variant ENST00000262464.9
FBN2XM_017009228.3 linkuse as main transcriptc.2660-37C>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FBN2ENST00000262464.9 linkuse as main transcriptc.2813-37C>A intron_variant 1 NM_001999.4 P1P35556-1
FBN2ENST00000508989.5 linkuse as main transcriptc.2714-37C>A intron_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0217
AC:
3305
AN:
152094
Hom.:
62
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00645
Gnomad AMI
AF:
0.0285
Gnomad AMR
AF:
0.0142
Gnomad ASJ
AF:
0.0182
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0174
Gnomad FIN
AF:
0.00906
Gnomad MID
AF:
0.0316
Gnomad NFE
AF:
0.0367
Gnomad OTH
AF:
0.0220
GnomAD3 exomes
AF:
0.0234
AC:
5868
AN:
250322
Hom.:
105
AF XY:
0.0247
AC XY:
3346
AN XY:
135344
show subpopulations
Gnomad AFR exome
AF:
0.00613
Gnomad AMR exome
AF:
0.0109
Gnomad ASJ exome
AF:
0.0185
Gnomad EAS exome
AF:
0.0000546
Gnomad SAS exome
AF:
0.0186
Gnomad FIN exome
AF:
0.0114
Gnomad NFE exome
AF:
0.0376
Gnomad OTH exome
AF:
0.0218
GnomAD4 exome
AF:
0.0324
AC:
44484
AN:
1370956
Hom.:
800
Cov.:
23
AF XY:
0.0320
AC XY:
21996
AN XY:
687358
show subpopulations
Gnomad4 AFR exome
AF:
0.00492
Gnomad4 AMR exome
AF:
0.0117
Gnomad4 ASJ exome
AF:
0.0171
Gnomad4 EAS exome
AF:
0.0000255
Gnomad4 SAS exome
AF:
0.0189
Gnomad4 FIN exome
AF:
0.0135
Gnomad4 NFE exome
AF:
0.0381
Gnomad4 OTH exome
AF:
0.0304
GnomAD4 genome
AF:
0.0217
AC:
3301
AN:
152212
Hom.:
62
Cov.:
33
AF XY:
0.0200
AC XY:
1488
AN XY:
74416
show subpopulations
Gnomad4 AFR
AF:
0.00640
Gnomad4 AMR
AF:
0.0142
Gnomad4 ASJ
AF:
0.0182
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0172
Gnomad4 FIN
AF:
0.00906
Gnomad4 NFE
AF:
0.0367
Gnomad4 OTH
AF:
0.0218
Alfa
AF:
0.0258
Hom.:
11
Bravo
AF:
0.0210
Asia WGS
AF:
0.00635
AC:
22
AN:
3478

ClinVar

Significance: Benign/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 submitterclinical testingGeneDxJun 26, 2018- -
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
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
1.8
DANN
Benign
0.40

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: rs28763947; hg19: chr5-127685734; API