Variant chr20-50841851-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_198799.4(BCAS4):c.350A>G(p.Gln117Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,459,304 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

BCAS4
NM_198799.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.524

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 Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03388107).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BCAS4	NM_198799.4 link	c.350A>G	p.Gln117Arg	missense_variant	4/5	ENST00000371608.8	NP_942094.3	Q8TDM0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BCAS4	ENST00000371608.8 link	c.350A>G	p.Gln117Arg	missense_variant	4/5	1	NM_198799.4	ENSP00000360669.3		A0A804CEY2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000161

AC:

AN:

248544

Hom.:

AF XY:

0.0000149

AC XY:

AN XY:

134546

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000876

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:

0.00000892

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000343

AC:

AN:

1459304

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

725700

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000900

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000824

AC:

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

Nov 14, 2024

The c.440A>G (p.Q147R) alteration is located in exon 4 (coding exon 4) of the BCAS4 gene. This alteration results from a A to G substitution at nucleotide position 440, causing the glutamine (Q) at amino acid position 147 to be replaced by an arginine (R). 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

0.069

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.71

CADD

Benign

5.0

DANN

Benign

0.56

DEOGEN2

Benign

0.0017

T;.;T

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.043

LIST_S2

Benign

0.48

T;T;T

M_CAP

Benign

0.0064

MetaRNN

Benign

0.034

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

L;L;.

PrimateAI

Benign

0.40

PROVEAN

Benign

-0.51

N;N;.

REVEL

Benign

0.014

Sift

Benign

0.47

T;T;.

Sift4G

Benign

0.62

T;T;T

Polyphen

0.0020

B;B;.

Vest4

0.080

MutPred

0.35

Gain of MoRF binding (P = 0.0147);Gain of MoRF binding (P = 0.0147);.;

MVP

0.095

MPC

0.27

ClinPred

0.022

GERP RS

-1.6

Varity_R

0.024

gMVP

0.13

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