rs377573682

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP6

The NM_001387283.1(SMARCA4):​c.4388G>A​(p.Arg1463His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,612,344 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1463C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

SMARCA4
NM_001387283.1 missense

Scores

4
10
5

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 8.97

Publications

4 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: Likely_benign. The variant received -1 ACMG points.

BP6
Variant 19-11041428-G-A is Benign according to our data. Variant chr19-11041428-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 537830.We mark this variant Likely_benign, oryginal submission is: [Conflicting_classifications_of_pathogenicity].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMARCA4NM_001387283.1 linkc.4388G>A p.Arg1463His missense_variant Exon 31 of 36 ENST00000646693.2 NP_001374212.1
SMARCA4NM_003072.5 linkc.4292G>A p.Arg1431His missense_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.4388G>A p.Arg1463His missense_variant Exon 31 of 36 NM_001387283.1 ENSP00000495368.1 Q9HBD4
SMARCA4ENST00000344626.10 linkc.4292G>A p.Arg1431His missense_variant Exon 30 of 35 1 NM_003072.5 ENSP00000343896.4 P51532-1
SMARCA4ENST00000643549.1 linkc.4298G>A p.Arg1433His missense_variant Exon 30 of 35 ENSP00000493975.1 A0A2R8Y4P4
SMARCA4ENST00000541122.6 linkc.4202G>A p.Arg1401His missense_variant Exon 30 of 35 5 ENSP00000445036.2 P51532-4
SMARCA4ENST00000643296.1 linkc.4202G>A p.Arg1401His missense_variant Exon 29 of 34 ENSP00000496635.1 P51532-4
SMARCA4ENST00000644737.1 linkc.4202G>A p.Arg1401His missense_variant Exon 29 of 34 ENSP00000495548.1 P51532-4
SMARCA4ENST00000589677.5 linkc.4202G>A p.Arg1401His missense_variant Exon 30 of 35 5 ENSP00000464778.1 P51532-3
SMARCA4ENST00000643995.1 linkc.3713G>A p.Arg1238His missense_variant Exon 27 of 32 ENSP00000496004.1 A0A2R8YGG3
SMARCA4ENST00000644963.1 linkc.2945G>A p.Arg982His missense_variant Exon 23 of 28 ENSP00000495599.1 A0A2R8YG32
SMARCA4ENST00000644065.1 linkc.2927G>A p.Arg976His missense_variant Exon 22 of 27 ENSP00000493615.1 A0A2R8Y440
SMARCA4ENST00000642350.1 linkc.2786G>A p.Arg929His missense_variant Exon 22 of 27 ENSP00000495355.1 A0A2R8Y6N0
SMARCA4ENST00000643857.1 linkc.2654G>A p.Arg885His missense_variant Exon 21 of 25 ENSP00000494159.1 A0A2R8Y526
SMARCA4ENST00000538456.4 linkc.458G>A p.Arg153His missense_variant Exon 4 of 8 3 ENSP00000495197.1 A0A2R8YFK5

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152192
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
247236
AF XY:
0.00
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1460152
Hom.:
0
Cov.:
32
AF XY:
0.00000551
AC XY:
4
AN XY:
726468
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44708
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51822
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111926
Other (OTH)
AF:
0.00
AC:
0
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000131
AC:
2
AN:
152192
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74356
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41446
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000151
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Rhabdoid tumor predisposition syndrome 2 Uncertain:2
Nov 28, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1463 of the SMARCA4 protein (p.Arg1463His). This variant is present in population databases (rs377573682, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with SMARCA4-related conditions. ClinVar contains an entry for this variant (Variation ID: 537830). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Aug 20, 2023
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Mar 17, 2023
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 25169753) -

Hereditary cancer-predisposing syndrome Benign:1
Jun 06, 2022
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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
-0.080
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.50
T;.;T;.;.;.;.;.;.;.;T;.;.;.;.;.;T;T;.;.;.;.;.
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.53
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
0.98
.;D;.;.;.;.;D;.;.;.;D;.;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.41
D
MetaRNN
Uncertain
0.50
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.43
D
MutationAssessor
Benign
1.5
L;.;.;.;.;.;.;.;.;.;L;.;.;.;.;.;.;.;.;.;.;.;.
PhyloP100
9.0
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-0.86
N;.;.;.;.;.;.;.;.;.;N;.;.;.;N;.;.;.;.;.;.;.;.
REVEL
Uncertain
0.42
Sift
Benign
0.033
D;.;.;.;.;.;.;.;.;.;D;.;.;.;T;.;.;.;.;.;.;.;.
Sift4G
Uncertain
0.029
D;.;.;.;.;.;.;.;.;.;D;.;D;D;D;D;D;T;.;.;.;.;.
Polyphen
1.0
D;.;D;.;.;.;.;.;.;.;D;.;.;.;.;.;.;D;.;.;.;.;.
Vest4
0.63
MVP
0.74
MPC
2.0
ClinPred
0.82
D
GERP RS
4.4
Varity_R
0.099
gMVP
0.58
Mutation Taster
=22/78
disease causing

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: rs377573682; hg19: chr19-11152104; COSMIC: COSV60788426; API