rs185816798

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_003571.4(BFSP2):c.379C>G(p.Gln127Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000239 in 1,614,048 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00023 ( 3 hom. )

Consequence

BFSP2
NM_003571.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 2.10

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.008911014).

BP6

Variant 3-133400462-C-G is Benign according to our data. Variant chr3-133400462-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 343405.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-133400462-C-G is described in Lovd as [Benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BFSP2	NM_003571.4 linkuse as main transcript	c.379C>G	p.Gln127Glu	missense_variant	1/7	ENST00000302334.3
BFSP2	XM_017007315.2 linkuse as main transcript	c.379C>G	p.Gln127Glu	missense_variant	1/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
BFSP2	ENST00000302334.3 linkuse as main transcript	c.379C>G	p.Gln127Glu	missense_variant	1/7	1	NM_003571.4	P1
BFSP2	ENST00000511140.1 linkuse as main transcript	n.1C>G		non_coding_transcript_exon_variant	1/2	3
BFSP2	ENST00000513441.1 linkuse as main transcript	n.389C>G		non_coding_transcript_exon_variant	1/2	5

Frequencies

GnomAD3 genomes

AF:

0.000375

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0104

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000950

AC:

237

AN:

249496

Hom.:

AF XY:

0.000807

AC XY:

109

AN XY:

135048

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0127

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000226

AC:

330

AN:

1461734

Hom.:

Cov.:

AF XY:

0.000190

AC XY:

138

AN XY:

727158

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00703

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.000729

GnomAD4 genome

AF:

0.000368

AC:

AN:

152314

Hom.:

Cov.:

AF XY:

0.000376

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0102

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000439

Hom.:

Bravo

AF:

0.000536

ExAC

AF:

0.000815

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Cataract 12 multiple types

Benign:2

Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 28, 2018	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

May 21, 2018

This 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.30

Cadd

Benign

Dann

Benign

0.85

DEOGEN2

Benign

0.37

Eigen

Benign

-0.60

Eigen_PC

Benign

-0.43

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.81

MetaRNN

Benign

0.0089

MetaSVM

Benign

-0.55

MutationAssessor

Benign

0.87

MutationTaster

Benign

0.99

PrimateAI

Benign

0.29

PROVEAN

Benign

-1.1

REVEL

Benign

0.23

Sift

Benign

0.23

Sift4G

Benign

0.49

Polyphen

0.0080

Vest4

0.20

MVP

0.70

MPC

0.19

ClinPred

0.015

GERP RS

3.8

Varity_R

0.16

gMVP

0.29

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over