rs182644267

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS1

The NM_001387283.1(SMARCA4):​c.4968G>A​(p.Pro1656Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000142 in 1,551,214 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. P1656P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00015 ( 1 hom. )

Consequence

SMARCA4
NM_001387283.1 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -6.46

Publications

0 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 -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.69).
BP6
Variant 19-11060148-G-A is Benign according to our data. Variant chr19-11060148-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 238497.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-6.46 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.0000525 (8/152372) while in subpopulation EAS AF = 0.00135 (7/5184). AF 95% confidence interval is 0.000633. There are 0 homozygotes in GnomAd4. There are 6 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.4968G>A p.Pro1656Pro synonymous_variant Exon 35 of 36 ENST00000646693.2 NP_001374212.1
SMARCA4NM_003072.5 linkc.4872G>A p.Pro1624Pro synonymous_variant Exon 34 of 35 ENST00000344626.10 NP_003063.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMARCA4ENST00000646693.2 linkc.4968G>A p.Pro1656Pro synonymous_variant Exon 35 of 36 NM_001387283.1 ENSP00000495368.1
SMARCA4ENST00000344626.10 linkc.4872G>A p.Pro1624Pro synonymous_variant Exon 34 of 35 1 NM_003072.5 ENSP00000343896.4
SMARCA4ENST00000643549.1 linkc.4878G>A p.Pro1626Pro synonymous_variant Exon 34 of 35 ENSP00000493975.1
SMARCA4ENST00000541122.6 linkc.4782G>A p.Pro1594Pro synonymous_variant Exon 34 of 35 5 ENSP00000445036.2
SMARCA4ENST00000643296.1 linkc.4782G>A p.Pro1594Pro synonymous_variant Exon 33 of 34 ENSP00000496635.1
SMARCA4ENST00000644737.1 linkc.4782G>A p.Pro1594Pro synonymous_variant Exon 33 of 34 ENSP00000495548.1
SMARCA4ENST00000589677.5 linkc.4779G>A p.Pro1593Pro synonymous_variant Exon 34 of 35 5 ENSP00000464778.1
SMARCA4ENST00000643995.1 linkc.4293G>A p.Pro1431Pro synonymous_variant Exon 31 of 32 ENSP00000496004.1
SMARCA4ENST00000644963.1 linkc.3522G>A p.Pro1174Pro synonymous_variant Exon 27 of 28 ENSP00000495599.1
SMARCA4ENST00000644065.1 linkc.3504G>A p.Pro1168Pro synonymous_variant Exon 26 of 27 ENSP00000493615.1
SMARCA4ENST00000642350.1 linkc.3366G>A p.Pro1122Pro synonymous_variant Exon 26 of 27 ENSP00000495355.1
SMARCA4ENST00000643857.1 linkc.3132G>A p.Pro1044Pro synonymous_variant Exon 24 of 25 ENSP00000494159.1
SMARCA4ENST00000538456.4 linkc.936G>A p.Pro312Pro synonymous_variant Exon 7 of 8 3 ENSP00000495197.1

Frequencies

GnomAD3 genomes
AF:
0.0000525
AC:
8
AN:
152254
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00135
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
GnomAD2 exomes
AF:
0.000109
AC:
17
AN:
155424
AF XY:
0.000110
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000404
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00142
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000152
AC:
213
AN:
1398842
Hom.:
1
Cov.:
33
AF XY:
0.000145
AC XY:
100
AN XY:
689966
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31586
American (AMR)
AF:
0.0000280
AC:
1
AN:
35696
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25164
East Asian (EAS)
AF:
0.00557
AC:
199
AN:
35730
South Asian (SAS)
AF:
0.0000253
AC:
2
AN:
79208
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49164
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5656
European-Non Finnish (NFE)
AF:
0.00000834
AC:
9
AN:
1078672
Other (OTH)
AF:
0.0000345
AC:
2
AN:
57966
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
14
28
41
55
69
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:
0.0000525
AC:
8
AN:
152372
Hom.:
0
Cov.:
33
AF XY:
0.0000805
AC XY:
6
AN XY:
74508
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41590
American (AMR)
AF:
0.0000653
AC:
1
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00135
AC:
7
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.563
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.00
Hom.:
0
Bravo
AF:
0.0000718
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Jun 01, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 01, 2023
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:2
Feb 18, 2021
Sema4, Sema4
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Jan 13, 2016
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:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Rhabdoid tumor predisposition syndrome 2 Benign:1
Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Coffin-Siris syndrome Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

SMARCA4-related disorder Benign:1
Feb 21, 2023
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.69
CADD
Benign
0.60
DANN
Benign
0.77
PhyloP100
-6.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=98/2
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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: rs182644267; hg19: chr19-11170824; API