rs566531015

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM1BP4_StrongBS1_Supporting

The NM_003072.5(SMARCA4):​c.3437G>A​(p.Gly1146Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,610,430 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. 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. G1146C) has been classified as Uncertain significance.

Frequency

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

Consequence

SMARCA4
NM_003072.5 missense

Scores

4
14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 2.42

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: Orphanet, ClinGen, 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: G2P, Ambry Genetics, Genomics England PanelApp, ClinGen, Labcorp Genetics (formerly Invitae)
  • otosclerosis
    Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia
  • 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: Unknown 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 -3 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 14 uncertain in NM_003072.5
BP4
Computational evidence support a benign effect (MetaRNN=0.06311533).
BS1
Variant frequency is greater than expected in population afr. GnomAdExome4 allele frequency = 0.00000343 (5/1458124) while in subpopulation AFR AF = 0.00012 (4/33436). AF 95% confidence interval is 0.0000409. There are 0 homozygotes in GnomAdExome4. There are 3 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003072.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SMARCA4
NM_001387283.1
MANE Plus Clinical
c.3437G>Ap.Gly1146Asp
missense
Exon 25 of 36NP_001374212.1Q9HBD4
SMARCA4
NM_003072.5
MANE Select
c.3437G>Ap.Gly1146Asp
missense
Exon 25 of 35NP_003063.2
SMARCA4
NM_001128849.3
c.3437G>Ap.Gly1146Asp
missense
Exon 25 of 36NP_001122321.1Q9HBD4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SMARCA4
ENST00000646693.2
MANE Plus Clinical
c.3437G>Ap.Gly1146Asp
missense
Exon 25 of 36ENSP00000495368.1Q9HBD4
SMARCA4
ENST00000344626.10
TSL:1 MANE Select
c.3437G>Ap.Gly1146Asp
missense
Exon 25 of 35ENSP00000343896.4P51532-1
SMARCA4
ENST00000643549.1
c.3437G>Ap.Gly1146Asp
missense
Exon 25 of 35ENSP00000493975.1A0A2R8Y4P4

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000413
AC:
1
AN:
241936
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000656
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:
0.00000343
AC:
5
AN:
1458124
Hom.:
0
Cov.:
31
AF XY:
0.00000414
AC XY:
3
AN XY:
725060
show subpopulations
African (AFR)
AF:
0.000120
AC:
4
AN:
33436
American (AMR)
AF:
0.00
AC:
0
AN:
44328
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26050
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39622
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85416
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52700
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1110562
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60248
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:
152306
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74478
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41570
American (AMR)
AF:
0.00
AC:
0
AN:
15290
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:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Rhabdoid tumor predisposition syndrome 2 (2)
-
-
1
Hereditary cancer-predisposing syndrome (1)
-
1
-
Intellectual disability, autosomal dominant 16 (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.40
CADD
Pathogenic
26
DANN
Benign
0.97
DEOGEN2
Uncertain
0.54
D
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.12
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.033
D
MetaRNN
Benign
0.063
T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
-0.90
N
PhyloP100
2.4
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.074
Sift
Benign
0.53
T
Sift4G
Benign
1.0
T
Polyphen
0.0010
B
Vest4
0.35
MutPred
0.28
Gain of solvent accessibility (P = 0.1014)
MVP
0.46
MPC
1.9
ClinPred
0.16
T
GERP RS
4.6
PromoterAI
0.046
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.14
gMVP
0.88
Mutation Taster
=76/24
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: rs566531015; hg19: chr19-11141460; API