rs1555761983

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PM2

The NM_001387283.1(SMARCA4):​c.1432A>G​(p.Ser478Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S478N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)

Consequence

SMARCA4
NM_001387283.1 missense

Scores

3
9
7

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.29

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

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 15 uncertain in NM_001387283.1
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMARCA4NM_001387283.1 linkc.1432A>G p.Ser478Gly missense_variant Exon 9 of 36 ENST00000646693.2 NP_001374212.1
SMARCA4NM_003072.5 linkc.1432A>G p.Ser478Gly missense_variant Exon 9 of 35 ENST00000344626.10 NP_003063.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMARCA4ENST00000646693.2 linkc.1432A>G p.Ser478Gly missense_variant Exon 9 of 36 NM_001387283.1 ENSP00000495368.1
SMARCA4ENST00000344626.10 linkc.1432A>G p.Ser478Gly missense_variant Exon 9 of 35 1 NM_003072.5 ENSP00000343896.4
SMARCA4ENST00000643549.1 linkc.1432A>G p.Ser478Gly missense_variant Exon 9 of 35 ENSP00000493975.1
SMARCA4ENST00000541122.6 linkc.1432A>G p.Ser478Gly missense_variant Exon 10 of 35 5 ENSP00000445036.2
SMARCA4ENST00000643296.1 linkc.1432A>G p.Ser478Gly missense_variant Exon 9 of 34 ENSP00000496635.1
SMARCA4ENST00000644737.1 linkc.1432A>G p.Ser478Gly missense_variant Exon 9 of 34 ENSP00000495548.1
SMARCA4ENST00000589677.5 linkc.1432A>G p.Ser478Gly missense_variant Exon 10 of 35 5 ENSP00000464778.1
SMARCA4ENST00000643995.1 linkc.844A>G p.Ser282Gly missense_variant Exon 6 of 32 ENSP00000496004.1
SMARCA4ENST00000644963.1 linkc.76A>G p.Ser26Gly missense_variant Exon 2 of 28 ENSP00000495599.1
SMARCA4ENST00000644065.1 linkc.160A>G p.Ser54Gly missense_variant Exon 2 of 27 ENSP00000493615.1
SMARCA4ENST00000642350.1 linkc.-81A>G upstream_gene_variant ENSP00000495355.1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.65
BayesDel_addAF
Uncertain
0.019
T
BayesDel_noAF
Benign
-0.21
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.69
D;.;T;.;.;.;.;.;.;.;D;.;.;.;.;.;T;T
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
.;D;.;.;.;.;D;.;.;.;D;.;D;D;D;D;D;D
M_CAP
Benign
0.085
D
MetaRNN
Uncertain
0.62
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
1.7
L;.;.;.;L;L;.;L;L;L;L;L;L;L;L;L;.;.
PhyloP100
9.3
PrimateAI
Pathogenic
0.87
D
PROVEAN
Uncertain
-2.7
D;.;.;.;.;.;.;.;.;.;D;.;D;.;D;.;D;D
REVEL
Uncertain
0.31
Sift
Benign
0.046
D;.;.;.;.;.;.;.;.;.;D;.;T;.;T;.;T;T
Sift4G
Benign
0.080
T;.;.;.;.;.;.;.;.;.;T;.;T;T;T;T;T;T
Polyphen
0.95
P;.;P;.;.;.;.;.;.;.;P;.;.;.;.;.;.;P
Vest4
0.57
MutPred
0.55
Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);Loss of disorder (P = 0.131);
MVP
0.66
MPC
2.2
ClinPred
0.97
D
GERP RS
4.5
PromoterAI
0.049
Neutral
Varity_R
0.49
gMVP
0.96
Mutation Taster
=25/75
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs1555761983; hg19: chr19-11105516; API