Variant chr20-50818212-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_198799.4(BCAS4):c.92C>T(p.Ala31Val) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,342 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

BCAS4
NM_198799.4 missense, splice_region

Scores

Splicing: ADA: 0.00006417

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.18

Variant links:

Genes affected

BCAS4 (HGNC:14367): (breast carcinoma amplified sequence 4) Predicted to be part of BLOC-1 complex. [provided by Alliance of Genome Resources, Apr 2022]

BCAS4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07786065).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BCAS4	NM_198799.4 linkuse as main transcript	c.92C>T	p.Ala31Val	missense_variant, splice_region_variant	2/5	ENST00000371608.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BCAS4	ENST00000371608.8 linkuse as main transcript	c.92C>T	p.Ala31Val	missense_variant, splice_region_variant	2/5	1	NM_198799.4	P2

Frequencies

GnomAD3 genomes

AF:

0.0000264

AC:

AN:

151676

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251062

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135696

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461666

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727112

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000264

AC:

AN:

151676

Hom.:

Cov.:

AF XY:

0.0000405

AC XY:

AN XY:

74028

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000197

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000227

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 23, 2024

The c.182C>T (p.A61V) alteration is located in exon 2 (coding exon 2) of the BCAS4 gene. This alteration results from a C to T substitution at nucleotide position 182, causing the alanine (A) at amino acid position 61 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.46

CADD

Benign

DANN

Benign

0.84

DEOGEN2

Benign

0.00075

T;.;T;.

Eigen

Benign

0.032

Eigen_PC

Benign

0.0027

FATHMM_MKL

Benign

0.20

LIST_S2

Benign

0.71

T;T;T;T

M_CAP

Benign

0.0080

MetaRNN

Benign

0.078

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.70

N;N;.;.

MutationTaster

Benign

0.97

D;D;D

PrimateAI

Uncertain

0.69

PROVEAN

Benign

0.65

N;N;.;.

REVEL

Benign

0.032

Sift

Benign

0.96

T;T;.;.

Sift4G

Benign

1.0

T;T;T;T

Polyphen

0.30

B;P;.;.

Vest4

0.24

MutPred

0.31

Gain of methylation at K62 (P = 0.0377);Gain of methylation at K62 (P = 0.0377);.;.;

MVP

0.43

MPC

0.43

ClinPred

0.14

GERP RS

-0.42

Varity_R

0.037

gMVP

0.067

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000064

dbscSNV1_RF

Benign

0.0040

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