rs117611401

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 1P and 9B. PP3BP6BS1BS2

The NM_003072.5(SMARCA4):​c.2275-3C>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00336 in 1,614,076 control chromosomes in the GnomAD database, including 19 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0024 ( 3 hom., cov: 32)
Exomes 𝑓: 0.0035 ( 16 hom. )

Consequence

SMARCA4
NM_003072.5 splice_region, intron

Scores

2
Splicing: ADA: 0.9875
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:17

Conservation

PhyloP100: 1.96
Variant links:
Genes affected
SMARCA4 (HGNC:11100): (SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily a, member 4) The protein encoded by this gene is a member of the SWI/SNF family of proteins and is similar to the brahma protein of Drosophila. Members of this family have helicase and ATPase activities and are thought to regulate transcription of certain genes by altering the chromatin structure around those genes. The encoded protein is part of the large ATP-dependent chromatin remodeling complex SNF/SWI, which is required for transcriptional activation of genes normally repressed by chromatin. In addition, this protein can bind BRCA1, as well as regulate the expression of the tumorigenic protein CD44. Mutations in this gene cause rhabdoid tumor predisposition syndrome type 2. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. Scorers claiming Uncertain: max_spliceai. No scorers claiming Benign.
BP6
Variant 19-11012946-C-A is Benign according to our data. Variant chr19-11012946-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 212240.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=7, Benign=6, Uncertain_significance=1}. Variant chr19-11012946-C-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00242 (369/152256) while in subpopulation NFE AF= 0.00388 (264/68028). AF 95% confidence interval is 0.0035. There are 3 homozygotes in gnomad4. There are 170 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 369 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMARCA4NM_001387283.1 linkc.2275-3C>A splice_region_variant, intron_variant Intron 15 of 35 ENST00000646693.2 NP_001374212.1
SMARCA4NM_003072.5 linkc.2275-3C>A splice_region_variant, intron_variant Intron 15 of 34 ENST00000344626.10 NP_003063.2 P51532-1A7E2E1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMARCA4ENST00000646693.2 linkc.2275-3C>A splice_region_variant, intron_variant Intron 15 of 35 NM_001387283.1 ENSP00000495368.1 Q9HBD4
SMARCA4ENST00000344626.10 linkc.2275-3C>A splice_region_variant, intron_variant Intron 15 of 34 1 NM_003072.5 ENSP00000343896.4 P51532-1
SMARCA4ENST00000643549.1 linkc.2275-3C>A splice_region_variant, intron_variant Intron 15 of 34 ENSP00000493975.1 A0A2R8Y4P4
SMARCA4ENST00000541122.6 linkc.2275-3C>A splice_region_variant, intron_variant Intron 16 of 34 5 ENSP00000445036.2 P51532-4
SMARCA4ENST00000643296.1 linkc.2275-3C>A splice_region_variant, intron_variant Intron 15 of 33 ENSP00000496635.1 P51532-4
SMARCA4ENST00000644737.1 linkc.2275-3C>A splice_region_variant, intron_variant Intron 15 of 33 ENSP00000495548.1 P51532-4
SMARCA4ENST00000589677.5 linkc.2275-3C>A splice_region_variant, intron_variant Intron 16 of 34 5 ENSP00000464778.1 P51532-3
SMARCA4ENST00000643995.1 linkc.1687-3C>A splice_region_variant, intron_variant Intron 12 of 31 ENSP00000496004.1 A0A2R8YGG3
SMARCA4ENST00000644963.1 linkc.919-3C>A splice_region_variant, intron_variant Intron 8 of 27 ENSP00000495599.1 A0A2R8YG32
SMARCA4ENST00000644065.1 linkc.1000-3C>A splice_region_variant, intron_variant Intron 8 of 26 ENSP00000493615.1 A0A2R8Y440
SMARCA4ENST00000642350.1 linkc.760-3C>A splice_region_variant, intron_variant Intron 7 of 26 ENSP00000495355.1 A0A2R8Y6N0
SMARCA4ENST00000643857.1 linkc.628-3C>A splice_region_variant, intron_variant Intron 6 of 24 ENSP00000494159.1 A0A2R8Y526

Frequencies

GnomAD3 genomes
AF:
0.00243
AC:
369
AN:
152138
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000338
Gnomad AMI
AF:
0.0559
Gnomad AMR
AF:
0.000655
Gnomad ASJ
AF:
0.00231
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00145
Gnomad FIN
AF:
0.000660
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00388
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00259
AC:
650
AN:
251442
Hom.:
2
AF XY:
0.00272
AC XY:
369
AN XY:
135906
show subpopulations
Gnomad AFR exome
AF:
0.000431
Gnomad AMR exome
AF:
0.000694
Gnomad ASJ exome
AF:
0.00377
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00127
Gnomad FIN exome
AF:
0.00116
Gnomad NFE exome
AF:
0.00441
Gnomad OTH exome
AF:
0.00244
GnomAD4 exome
AF:
0.00346
AC:
5057
AN:
1461820
Hom.:
16
Cov.:
31
AF XY:
0.00342
AC XY:
2486
AN XY:
727220
show subpopulations
Gnomad4 AFR exome
AF:
0.000538
Gnomad4 AMR exome
AF:
0.000716
Gnomad4 ASJ exome
AF:
0.00333
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00159
Gnomad4 FIN exome
AF:
0.00135
Gnomad4 NFE exome
AF:
0.00401
Gnomad4 OTH exome
AF:
0.00328
GnomAD4 genome
AF:
0.00242
AC:
369
AN:
152256
Hom.:
3
Cov.:
32
AF XY:
0.00228
AC XY:
170
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.000337
Gnomad4 AMR
AF:
0.000654
Gnomad4 ASJ
AF:
0.00231
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00145
Gnomad4 FIN
AF:
0.000660
Gnomad4 NFE
AF:
0.00388
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00269
Hom.:
2
Bravo
AF:
0.00272
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.00562
EpiControl
AF:
0.00622

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:17
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:8
-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Nov 03, 2021
Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 22, 2016
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Dec 09, 2019
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Mar 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

SMARCA4: BS2 -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 22, 2020
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 28873162) -

-
Clinical Genetics Laboratory, Department of Pathology, Netherlands Cancer Institute
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not specified Benign:3
Mar 31, 2016
Genetic Services Laboratory, University of Chicago
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 20, 2015
Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 22, 2021
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Rhabdoid tumor predisposition syndrome 2 Benign:2
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 28, 2019
Mendelics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:2
Nov 23, 2018
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Jul 21, 2021
Sema4, Sema4
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Intellectual disability, autosomal dominant 16 Benign:1
Jul 15, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Coffin-Siris syndrome Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
21
DANN
Benign
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Pathogenic
0.84
SpliceAI score (max)
0.42
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.34
Position offset: -26
DS_AL_spliceai
0.42
Position offset: 3

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: rs117611401; hg19: chr19-11123622; COSMIC: COSV104418555; COSMIC: COSV104418555; API