rs114882905

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001387283.1(SMARCA4):​c.4368G>A​(p.Pro1456Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000826 in 1,612,222 control chromosomes in the GnomAD database, including 11 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. P1456P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0042 ( 5 hom., cov: 32)
Exomes 𝑓: 0.00047 ( 6 hom. )

Consequence

SMARCA4
NM_001387283.1 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 0.0100

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 -19 ACMG points.

BP4
Computational evidence support a benign effect (REVEL=0.033).
BP6
Variant 19-11041408-G-A is Benign according to our data. Variant chr19-11041408-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 221084.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.01 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0042 (640/152240) while in subpopulation AFR AF = 0.0147 (610/41546). AF 95% confidence interval is 0.0137. There are 5 homozygotes in GnomAd4. There are 300 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 5 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMARCA4NM_001387283.1 linkc.4368G>A p.Pro1456Pro synonymous_variant Exon 31 of 36 ENST00000646693.2 NP_001374212.1
SMARCA4NM_003072.5 linkc.4272G>A p.Pro1424Pro synonymous_variant Exon 30 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.4368G>A p.Pro1456Pro synonymous_variant Exon 31 of 36 NM_001387283.1 ENSP00000495368.1 Q9HBD4
SMARCA4ENST00000344626.10 linkc.4272G>A p.Pro1424Pro synonymous_variant Exon 30 of 35 1 NM_003072.5 ENSP00000343896.4 P51532-1
SMARCA4ENST00000643549.1 linkc.4278G>A p.Pro1426Pro synonymous_variant Exon 30 of 35 ENSP00000493975.1 A0A2R8Y4P4
SMARCA4ENST00000541122.6 linkc.4182G>A p.Pro1394Pro synonymous_variant Exon 30 of 35 5 ENSP00000445036.2 P51532-4
SMARCA4ENST00000643296.1 linkc.4182G>A p.Pro1394Pro synonymous_variant Exon 29 of 34 ENSP00000496635.1 P51532-4
SMARCA4ENST00000644737.1 linkc.4182G>A p.Pro1394Pro synonymous_variant Exon 29 of 34 ENSP00000495548.1 P51532-4
SMARCA4ENST00000589677.5 linkc.4182G>A p.Pro1394Pro synonymous_variant Exon 30 of 35 5 ENSP00000464778.1 P51532-3
SMARCA4ENST00000643995.1 linkc.3693G>A p.Pro1231Pro synonymous_variant Exon 27 of 32 ENSP00000496004.1 A0A2R8YGG3
SMARCA4ENST00000644963.1 linkc.2925G>A p.Pro975Pro synonymous_variant Exon 23 of 28 ENSP00000495599.1 A0A2R8YG32
SMARCA4ENST00000644065.1 linkc.2907G>A p.Pro969Pro synonymous_variant Exon 22 of 27 ENSP00000493615.1 A0A2R8Y440
SMARCA4ENST00000642350.1 linkc.2766G>A p.Pro922Pro synonymous_variant Exon 22 of 27 ENSP00000495355.1 A0A2R8Y6N0
SMARCA4ENST00000643857.1 linkc.2634G>A p.Pro878Pro synonymous_variant Exon 21 of 25 ENSP00000494159.1 A0A2R8Y526
SMARCA4ENST00000538456.4 linkc.438G>A p.Pro146Pro synonymous_variant Exon 4 of 8 3 ENSP00000495197.1 A0A2R8YFK5

Frequencies

GnomAD3 genomes
AF:
0.00418
AC:
636
AN:
152122
Hom.:
5
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0146
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00144
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00239
GnomAD2 exomes
AF:
0.00110
AC:
271
AN:
246462
AF XY:
0.000760
show subpopulations
Gnomad AFR exome
AF:
0.0157
Gnomad AMR exome
AF:
0.000436
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000448
Gnomad OTH exome
AF:
0.000498
GnomAD4 exome
AF:
0.000473
AC:
691
AN:
1459982
Hom.:
6
Cov.:
32
AF XY:
0.000406
AC XY:
295
AN XY:
726376
show subpopulations
African (AFR)
AF:
0.0172
AC:
575
AN:
33480
American (AMR)
AF:
0.000649
AC:
29
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86250
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51710
Middle Eastern (MID)
AF:
0.00139
AC:
8
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000153
AC:
17
AN:
1111888
Other (OTH)
AF:
0.000978
AC:
59
AN:
60348
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
39
78
117
156
195
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
22
44
66
88
110
<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:
0.00420
AC:
640
AN:
152240
Hom.:
5
Cov.:
32
AF XY:
0.00403
AC XY:
300
AN XY:
74446
show subpopulations
African (AFR)
AF:
0.0147
AC:
610
AN:
41546
American (AMR)
AF:
0.00144
AC:
22
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68004
Other (OTH)
AF:
0.00237
AC:
5
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
28
56
84
112
140
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00108
Hom.:
0
Bravo
AF:
0.00478
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

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
Jul 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

SMARCA4: BP4, BP7, BS1, BS2 -

Feb 24, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
May 24, 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;C3553249:Intellectual disability, autosomal dominant 16 Benign:1
May 11, 2022
Fulgent Genetics, Fulgent Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

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

- -

Hereditary cancer-predisposing syndrome Benign:1
May 20, 2015
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as 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. -

Coffin-Siris syndrome Benign:1
Jan 13, 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
-0.31
CADD
Benign
12
DANN
Benign
0.91
PhyloP100
0.010
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs114882905; hg19: chr19-11152084; API