chr22-45518791-C-T

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_006486.3(FBLN1):​c.185+4C>T variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000502 in 1,602,454 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0027 ( 3 hom., cov: 32)
Exomes 𝑓: 0.00027 ( 1 hom. )

Consequence

FBLN1
NM_006486.3 splice_donor_region, intron

Scores

2
Splicing: ADA: 0.00006927
2

Clinical Significance

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

Conservation

PhyloP100: -5.27
Variant links:
Genes affected
FBLN1 (HGNC:3600): (fibulin 1) Fibulin 1 is a secreted glycoprotein that becomes incorporated into a fibrillar extracellular matrix. Calcium-binding is apparently required to mediate its binding to laminin and nidogen. It mediates platelet adhesion via binding fibrinogen. Four splice variants which differ in the 3' end have been identified. Each variant encodes a different isoform, but no functional distinctions have been identified among the four variants. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.64).
BP6
Variant 22-45518791-C-T is Benign according to our data. Variant chr22-45518791-C-T is described in ClinVar as [Benign]. Clinvar id is 787509.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 418 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FBLN1NM_006486.3 linkuse as main transcriptc.185+4C>T splice_donor_region_variant, intron_variant ENST00000327858.11
FBLN1NM_001996.4 linkuse as main transcriptc.185+4C>T splice_donor_region_variant, intron_variant
FBLN1NM_006485.4 linkuse as main transcriptc.185+4C>T splice_donor_region_variant, intron_variant
FBLN1NM_006487.3 linkuse as main transcriptc.185+4C>T splice_donor_region_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FBLN1ENST00000327858.11 linkuse as main transcriptc.185+4C>T splice_donor_region_variant, intron_variant 1 NM_006486.3 P1P23142-1

Frequencies

GnomAD3 genomes
AF:
0.00272
AC:
414
AN:
152184
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00946
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00118
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000639
AC:
148
AN:
231528
Hom.:
0
AF XY:
0.000504
AC XY:
63
AN XY:
124888
show subpopulations
Gnomad AFR exome
AF:
0.00837
Gnomad AMR exome
AF:
0.000610
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:
0.0000578
Gnomad OTH exome
AF:
0.000175
GnomAD4 exome
AF:
0.000267
AC:
387
AN:
1450152
Hom.:
1
Cov.:
31
AF XY:
0.000236
AC XY:
170
AN XY:
720612
show subpopulations
Gnomad4 AFR exome
AF:
0.00862
Gnomad4 AMR exome
AF:
0.000666
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000119
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000235
Gnomad4 OTH exome
AF:
0.000734
GnomAD4 genome
AF:
0.00274
AC:
418
AN:
152302
Hom.:
3
Cov.:
32
AF XY:
0.00238
AC XY:
177
AN XY:
74468
show subpopulations
Gnomad4 AFR
AF:
0.00953
Gnomad4 AMR
AF:
0.00118
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.00148
Hom.:
0
Bravo
AF:
0.00306
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 26, 2023- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.64
CADD
Benign
0.19
DANN
Benign
0.92

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000069
dbscSNV1_RF
Benign
0.022
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: rs147045275; hg19: chr22-45914671; API