rs372319442

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_003072.5(SMARCA4):​c.4834G>A​(p.Gly1612Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000426 in 1,551,074 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G1612C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

SMARCA4
NM_003072.5 missense

Scores

1
4
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:9B:1

Conservation

PhyloP100: 1.81

Publications

8 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.

BP4
Computational evidence support a benign effect (MetaRNN=0.15546295).
BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.0000443 (62/1398690) while in subpopulation MID AF = 0.000528 (3/5682). AF 95% confidence interval is 0.000144. There are 0 homozygotes in GnomAdExome4. There are 28 alleles in the male GnomAdExome4 subpopulation. Median coverage is 33. 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.4930G>Ap.Gly1644Ser
missense
Exon 35 of 36NP_001374212.1Q9HBD4
SMARCA4
NM_003072.5
MANE Select
c.4834G>Ap.Gly1612Ser
missense
Exon 34 of 35NP_003063.2
SMARCA4
NM_001128849.3
c.4930G>Ap.Gly1644Ser
missense
Exon 35 of 36NP_001122321.1Q9HBD4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SMARCA4
ENST00000646693.2
MANE Plus Clinical
c.4930G>Ap.Gly1644Ser
missense
Exon 35 of 36ENSP00000495368.1Q9HBD4
SMARCA4
ENST00000344626.10
TSL:1 MANE Select
c.4834G>Ap.Gly1612Ser
missense
Exon 34 of 35ENSP00000343896.4P51532-1
SMARCA4
ENST00000643549.1
c.4840G>Ap.Gly1614Ser
missense
Exon 34 of 35ENSP00000493975.1A0A2R8Y4P4

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152266
Hom.:
0
Cov.:
33
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:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000329
AC:
5
AN:
152182
AF XY:
0.0000247
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000406
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000918
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000516
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000443
AC:
62
AN:
1398690
Hom.:
0
Cov.:
33
AF XY:
0.0000406
AC XY:
28
AN XY:
689900
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31594
American (AMR)
AF:
0.0000280
AC:
1
AN:
35700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25172
East Asian (EAS)
AF:
0.0000560
AC:
2
AN:
35732
South Asian (SAS)
AF:
0.0000126
AC:
1
AN:
79236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48606
Middle Eastern (MID)
AF:
0.000528
AC:
3
AN:
5682
European-Non Finnish (NFE)
AF:
0.0000473
AC:
51
AN:
1078978
Other (OTH)
AF:
0.0000690
AC:
4
AN:
57990
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000262
AC:
4
AN:
152384
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74520
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41594
American (AMR)
AF:
0.00
AC:
0
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
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:
0.0000441
AC:
3
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000674
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000271
AC:
2

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
1
Hereditary cancer-predisposing syndrome (2)
-
2
-
Intellectual disability, autosomal dominant 16 (2)
-
2
-
not provided (2)
-
2
-
Rhabdoid tumor predisposition syndrome 2 (2)
-
1
-
not specified (1)
-
1
-
SMARCA4-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Uncertain
0.058
T
BayesDel_noAF
Uncertain
-0.030
CADD
Benign
16
DANN
Uncertain
1.0
DEOGEN2
Benign
0.26
T
Eigen
Benign
-0.56
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.50
D
LIST_S2
Benign
0.78
T
M_CAP
Pathogenic
0.42
D
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-0.47
T
MutationAssessor
Benign
0.65
N
PhyloP100
1.8
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-0.80
N
REVEL
Uncertain
0.55
Sift
Benign
0.096
T
Sift4G
Benign
0.31
T
Polyphen
0.99
D
Vest4
0.089
MVP
0.93
MPC
1.8
ClinPred
0.34
T
GERP RS
0.41
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.7
Varity_R
0.053
gMVP
0.65
Mutation Taster
=91/9
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: rs372319442; hg19: chr19-11170786; COSMIC: COSV100759421; API