rs2276737

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_003571.4(BFSP2):​c.603G>A​(p.Ala201=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.581 in 1,613,420 control chromosomes in the GnomAD database, including 282,437 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.47 ( 19696 hom., cov: 32)
Exomes 𝑓: 0.59 ( 262741 hom. )

Consequence

BFSP2
NM_003571.4 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 0.161
Variant links:
Genes affected
BFSP2 (HGNC:1041): (beaded filament structural protein 2) More than 99% of the vertebrate ocular lens is comprised of terminally differentiated lens fiber cells. Two lens-specific intermediate filament-like proteins, the protein product of this gene (phakinin), and filensin, are expressed only after fiber cell differentiation has begun. Both proteins are found in a structurally unique cytoskeletal element that is referred to as the beaded filament (BF). Mutations in this gene have been associated with juvenile-onset, progressive cataracts and Dowling-Meara epidermolysis bullosa simplex. [provided by RefSeq, Jun 2009]
BFSP2-AS1 (HGNC:28425): (BFSP2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
Variant 3-133448519-G-A is Benign according to our data. Variant chr3-133448519-G-A is described in ClinVar as [Benign]. Clinvar id is 1164247.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-133448519-G-A is described in Lovd as [Benign]. Variant chr3-133448519-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=0.161 with no splicing effect.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.612 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BFSP2NM_003571.4 linkuse as main transcriptc.603G>A p.Ala201= synonymous_variant 3/7 ENST00000302334.3
BFSP2-AS1NR_135277.1 linkuse as main transcriptn.381-2944C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BFSP2ENST00000302334.3 linkuse as main transcriptc.603G>A p.Ala201= synonymous_variant 3/71 NM_003571.4 P1
BFSP2-AS1ENST00000515542.1 linkuse as main transcriptn.282+262C>T intron_variant, non_coding_transcript_variant 1

Frequencies

GnomAD3 genomes
AF:
0.469
AC:
71279
AN:
151912
Hom.:
19695
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.169
Gnomad AMI
AF:
0.791
Gnomad AMR
AF:
0.439
Gnomad ASJ
AF:
0.582
Gnomad EAS
AF:
0.583
Gnomad SAS
AF:
0.616
Gnomad FIN
AF:
0.539
Gnomad MID
AF:
0.598
Gnomad NFE
AF:
0.617
Gnomad OTH
AF:
0.500
GnomAD3 exomes
AF:
0.539
AC:
135182
AN:
251004
Hom.:
38870
AF XY:
0.557
AC XY:
75611
AN XY:
135658
show subpopulations
Gnomad AFR exome
AF:
0.155
Gnomad AMR exome
AF:
0.349
Gnomad ASJ exome
AF:
0.554
Gnomad EAS exome
AF:
0.596
Gnomad SAS exome
AF:
0.618
Gnomad FIN exome
AF:
0.539
Gnomad NFE exome
AF:
0.618
Gnomad OTH exome
AF:
0.561
GnomAD4 exome
AF:
0.593
AC:
866158
AN:
1461388
Hom.:
262741
Cov.:
54
AF XY:
0.596
AC XY:
433386
AN XY:
727040
show subpopulations
Gnomad4 AFR exome
AF:
0.149
Gnomad4 AMR exome
AF:
0.359
Gnomad4 ASJ exome
AF:
0.560
Gnomad4 EAS exome
AF:
0.559
Gnomad4 SAS exome
AF:
0.618
Gnomad4 FIN exome
AF:
0.547
Gnomad4 NFE exome
AF:
0.619
Gnomad4 OTH exome
AF:
0.567
GnomAD4 genome
AF:
0.469
AC:
71287
AN:
152032
Hom.:
19696
Cov.:
32
AF XY:
0.468
AC XY:
34779
AN XY:
74316
show subpopulations
Gnomad4 AFR
AF:
0.168
Gnomad4 AMR
AF:
0.438
Gnomad4 ASJ
AF:
0.582
Gnomad4 EAS
AF:
0.583
Gnomad4 SAS
AF:
0.618
Gnomad4 FIN
AF:
0.539
Gnomad4 NFE
AF:
0.617
Gnomad4 OTH
AF:
0.500
Alfa
AF:
0.574
Hom.:
41590
Bravo
AF:
0.443
Asia WGS
AF:
0.553
AC:
1924
AN:
3478
EpiCase
AF:
0.615
EpiControl
AF:
0.618

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Cataract 12 multiple types Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 27, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.45
CADD
Benign
9.7
DANN
Benign
0.83

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: rs2276737; hg19: chr3-133167363; COSMIC: COSV56588646; COSMIC: COSV56588646; API