rs6080718

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_StrongBP6_ModerateBP7BS1

The NM_001195.5(BFSP1):​c.1749A>T​(p.Pro583Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000227 in 1,614,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Synonymous variant affecting the same amino acid position (i.e. P583P) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

BFSP1
NM_001195.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: -5.31
Variant links:
Genes affected
BFSP1 (HGNC:1040): (beaded filament structural protein 1) This gene encodes a lens-specific intermediate filament-like protein named filensin. The encoded protein is expressed in lens fiber cells after differentiation has begun. This protein functions as a component of the beaded filament which is a cytoskeletal structure found in lens fiber cells. Mutations in this gene are the cause of autosomal recessive cortical juvenile-onset cataract. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 20-17494323-T-A is Benign according to our data. Variant chr20-17494323-T-A is described in ClinVar as [Benign]. Clinvar id is 1166147.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr20-17494323-T-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-5.31 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00134 (204/152196) while in subpopulation AFR AF= 0.00477 (198/41520). AF 95% confidence interval is 0.00422. There are 0 homozygotes in gnomad4. There are 85 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BFSP1NM_001195.5 linkc.1749A>T p.Pro583Pro synonymous_variant Exon 8 of 8 ENST00000377873.8 NP_001186.1 Q12934-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BFSP1ENST00000377873.8 linkc.1749A>T p.Pro583Pro synonymous_variant Exon 8 of 8 1 NM_001195.5 ENSP00000367104.3 Q12934-1
BFSP1ENST00000377868.6 linkc.1374A>T p.Pro458Pro synonymous_variant Exon 8 of 8 1 ENSP00000367099.2 Q12934-2
BFSP1ENST00000536626.7 linkc.1332A>T p.Pro444Pro synonymous_variant Exon 9 of 9 2 ENSP00000442522.1 Q12934-3

Frequencies

GnomAD3 genomes
AF:
0.00134
AC:
204
AN:
152078
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00478
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000441
Gnomad OTH
AF:
0.000957
GnomAD3 exomes
AF:
0.000410
AC:
103
AN:
251436
Hom.:
0
AF XY:
0.000265
AC XY:
36
AN XY:
135898
show subpopulations
Gnomad AFR exome
AF:
0.00566
Gnomad AMR exome
AF:
0.000202
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:
0.0000264
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000111
AC:
162
AN:
1461884
Hom.:
0
Cov.:
87
AF XY:
0.0000825
AC XY:
60
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00352
Gnomad4 AMR exome
AF:
0.000313
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.000182
GnomAD4 genome
AF:
0.00134
AC:
204
AN:
152196
Hom.:
0
Cov.:
33
AF XY:
0.00114
AC XY:
85
AN XY:
74414
show subpopulations
Gnomad4 AFR
AF:
0.00477
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000947
Alfa
AF:
0.00000456
Hom.:
56744

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Cataract 33 Benign:1
Jan 22, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

BFSP1-related disorder Benign:1
May 10, 2021
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
0.031
DANN
Benign
0.43

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: rs6080718; hg19: chr20-17474968; API