chr20-50830276-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS2

The NM_198799.4(BCAS4):​c.163-3C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000917 in 1,612,300 control chromosomes in the GnomAD database, including 16 homozygotes. In-silico tool predicts 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 Benign (★).

Frequency

Genomes: 𝑓 0.0013 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00088 ( 14 hom. )

Consequence

BCAS4
NM_198799.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.3591
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.47
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.2).
BP6
Variant 20-50830276-C-T is Benign according to our data. Variant chr20-50830276-C-T is described in ClinVar as [Benign]. Clinvar id is 779192.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BCAS4NM_198799.4 linkuse as main transcriptc.163-3C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000371608.8 NP_942094.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BCAS4ENST00000371608.8 linkuse as main transcriptc.163-3C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_198799.4 ENSP00000360669 P2

Frequencies

GnomAD3 genomes
AF:
0.00127
AC:
194
AN:
152224
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000651
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00268
Gnomad ASJ
AF:
0.0265
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000470
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.00193
AC:
484
AN:
251046
Hom.:
4
AF XY:
0.00174
AC XY:
236
AN XY:
135674
show subpopulations
Gnomad AFR exome
AF:
0.000739
Gnomad AMR exome
AF:
0.00296
Gnomad ASJ exome
AF:
0.0286
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000537
Gnomad OTH exome
AF:
0.00343
GnomAD4 exome
AF:
0.000879
AC:
1284
AN:
1459958
Hom.:
14
Cov.:
30
AF XY:
0.000896
AC XY:
651
AN XY:
726454
show subpopulations
Gnomad4 AFR exome
AF:
0.000658
Gnomad4 AMR exome
AF:
0.00298
Gnomad4 ASJ exome
AF:
0.0264
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000261
Gnomad4 OTH exome
AF:
0.00242
GnomAD4 genome
AF:
0.00127
AC:
194
AN:
152342
Hom.:
2
Cov.:
32
AF XY:
0.00125
AC XY:
93
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.000649
Gnomad4 AMR
AF:
0.00268
Gnomad4 ASJ
AF:
0.0265
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000470
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00309
Hom.:
1
Bravo
AF:
0.00166
EpiCase
AF:
0.000382
EpiControl
AF:
0.000593

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.20
CADD
Benign
16
DANN
Benign
0.95

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.36
dbscSNV1_RF
Benign
0.25
SpliceAI score (max)
0.010
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: rs188902261; hg19: chr20-49446813; COSMIC: COSV52812872; API