rs143600641

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS1

The NM_001387283.1(SMARCA4):​c.1287G>A​(p.Ala429Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000452 in 1,613,896 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A429A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

SMARCA4
NM_001387283.1 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:8

Conservation

PhyloP100: -1.68

Publications

1 publications found
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]
SMARCA4 Gene-Disease associations (from GenCC):
  • Coffin-Siris syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet, Illumina
  • intellectual disability, autosomal dominant 16
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • rhabdoid tumor predisposition syndrome 2
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P
  • uterine corpus sarcoma
    Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
  • familial rhabdoid tumor
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hereditary nonpolyposis colon cancer
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.58).
BP6
Variant 19-10991191-G-A is Benign according to our data. Variant chr19-10991191-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 212235.
BP7
Synonymous conserved (PhyloP=-1.68 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.0000722 (11/152376) while in subpopulation AMR AF = 0.000327 (5/15308). AF 95% confidence interval is 0.000129. There are 0 homozygotes in GnomAd4. There are 3 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMARCA4NM_001387283.1 linkc.1287G>A p.Ala429Ala synonymous_variant Exon 8 of 36 ENST00000646693.2 NP_001374212.1
SMARCA4NM_003072.5 linkc.1287G>A p.Ala429Ala synonymous_variant Exon 8 of 35 ENST00000344626.10 NP_003063.2 P51532-1A7E2E1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMARCA4ENST00000646693.2 linkc.1287G>A p.Ala429Ala synonymous_variant Exon 8 of 36 NM_001387283.1 ENSP00000495368.1 Q9HBD4
SMARCA4ENST00000344626.10 linkc.1287G>A p.Ala429Ala synonymous_variant Exon 8 of 35 1 NM_003072.5 ENSP00000343896.4 P51532-1
SMARCA4ENST00000643549.1 linkc.1287G>A p.Ala429Ala synonymous_variant Exon 8 of 35 ENSP00000493975.1 A0A2R8Y4P4
SMARCA4ENST00000541122.6 linkc.1287G>A p.Ala429Ala synonymous_variant Exon 9 of 35 5 ENSP00000445036.2 P51532-4
SMARCA4ENST00000643296.1 linkc.1287G>A p.Ala429Ala synonymous_variant Exon 8 of 34 ENSP00000496635.1 P51532-4
SMARCA4ENST00000644737.1 linkc.1287G>A p.Ala429Ala synonymous_variant Exon 8 of 34 ENSP00000495548.1 P51532-4
SMARCA4ENST00000589677.5 linkc.1287G>A p.Ala429Ala synonymous_variant Exon 9 of 35 5 ENSP00000464778.1 P51532-3
SMARCA4ENST00000643995.1 linkc.699G>A p.Ala233Ala synonymous_variant Exon 5 of 32 ENSP00000496004.1 A0A2R8YGG3
SMARCA4ENST00000644065.1 linkc.15G>A p.Ala5Ala synonymous_variant Exon 1 of 27 ENSP00000493615.1 A0A2R8Y440
SMARCA4ENST00000644963.1 linkc.-70G>A upstream_gene_variant ENSP00000495599.1 A0A2R8YG32

Frequencies

GnomAD3 genomes
AF:
0.0000722
AC:
11
AN:
152258
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000841
AC:
21
AN:
249810
AF XY:
0.0000961
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000376
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000356
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000424
AC:
62
AN:
1461520
Hom.:
0
Cov.:
33
AF XY:
0.0000481
AC XY:
35
AN XY:
727070
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.000224
AC:
10
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.0000580
AC:
5
AN:
86234
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53136
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5756
European-Non Finnish (NFE)
AF:
0.0000378
AC:
42
AN:
1111990
Other (OTH)
AF:
0.0000662
AC:
4
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
4
8
13
17
21
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000722
AC:
11
AN:
152376
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74522
show subpopulations
African (AFR)
AF:
0.0000240
AC:
1
AN:
41602
American (AMR)
AF:
0.000327
AC:
5
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000793
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:8
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:3
Feb 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

SMARCA4: BP4, BP7 -

Nov 03, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 09, 2022
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Uncertain:1Benign:1
Aug 11, 2021
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 22, 2015
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:2
May 21, 2021
Sema4, Sema4
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Sep 25, 2015
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. -

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

- -

Rhabdoid tumor predisposition syndrome 2 Benign:1
Jan 27, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.58
CADD
Benign
9.1
DANN
Benign
0.56
PhyloP100
-1.7
PromoterAI
-0.011
Neutral
RBP_binding_hub_radar
1.0
RBP_regulation_power_radar
2.8
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs143600641; hg19: chr19-11101867; COSMIC: COSV100759431; API