19-10986240-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 1P and 13B. PP2BP4_StrongBP6BS1BS2

The NM_003072.5(SMARCA4):​c.407C>T​(p.Ala136Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000452 in 1,613,988 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000046 ( 1 hom. )

Consequence

SMARCA4
NM_003072.5 missense

Scores

2
5
12

Clinical Significance

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

Conservation

PhyloP100: 2.65
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SMARCA4. . Gene score misZ 6.8459 (greater than the threshold 3.09). Trascript score misZ 8.7957 (greater than threshold 3.09). GenCC has associacion of gene with uterine corpus sarcoma, Coffin-Siris syndrome 1, intellectual disability, autosomal dominant 16, rhabdoid tumor predisposition syndrome 2, familial rhabdoid tumor, hereditary nonpolyposis colon cancer, Coffin-Siris syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.05262786).
BP6
Variant 19-10986240-C-T is Benign according to our data. Variant chr19-10986240-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 470381.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=3}.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000394 (6/152312) while in subpopulation SAS AF= 0.00104 (5/4830). AF 95% confidence interval is 0.000408. There are 0 homozygotes in gnomad4. There are 3 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SMARCA4NM_001387283.1 linkuse as main transcriptc.407C>T p.Ala136Val missense_variant 4/36 ENST00000646693.2 NP_001374212.1
SMARCA4NM_003072.5 linkuse as main transcriptc.407C>T p.Ala136Val missense_variant 4/35 ENST00000344626.10 NP_003063.2 P51532-1A7E2E1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SMARCA4ENST00000646693.2 linkuse as main transcriptc.407C>T p.Ala136Val missense_variant 4/36 NM_001387283.1 ENSP00000495368.1 Q9HBD4
SMARCA4ENST00000344626.10 linkuse as main transcriptc.407C>T p.Ala136Val missense_variant 4/351 NM_003072.5 ENSP00000343896.4 P51532-1
SMARCA4ENST00000643549.1 linkuse as main transcriptc.407C>T p.Ala136Val missense_variant 4/35 ENSP00000493975.1 A0A2R8Y4P4
SMARCA4ENST00000541122.6 linkuse as main transcriptc.407C>T p.Ala136Val missense_variant 5/355 ENSP00000445036.2 P51532-4
SMARCA4ENST00000643296.1 linkuse as main transcriptc.407C>T p.Ala136Val missense_variant 4/34 ENSP00000496635.1 P51532-4
SMARCA4ENST00000644737.1 linkuse as main transcriptc.407C>T p.Ala136Val missense_variant 4/34 ENSP00000495548.1 P51532-4
SMARCA4ENST00000589677.5 linkuse as main transcriptc.407C>T p.Ala136Val missense_variant 5/355 ENSP00000464778.1 P51532-3

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152194
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:
0.00103
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000805
AC:
20
AN:
248598
Hom.:
0
AF XY:
0.000119
AC XY:
16
AN XY:
134704
show subpopulations
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 SAS exome
AF:
0.000621
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000900
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000458
AC:
67
AN:
1461676
Hom.:
1
Cov.:
34
AF XY:
0.0000619
AC XY:
45
AN XY:
727158
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000684
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152312
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.000107
AC:
13

ClinVar

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

Submissions by phenotype

Rhabdoid tumor predisposition syndrome 2 Uncertain:1Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -
Uncertain significance, criteria provided, single submitterclinical testingBaylor GeneticsJul 13, 2023- -
Rhabdoid tumor predisposition syndrome 2;C3553249:Intellectual disability, autosomal dominant 16 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 31, 2018- -
Intellectual disability, autosomal dominant 16 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabJul 15, 2021- -
Hereditary cancer-predisposing syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsDec 05, 2022This 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. -
SMARCA4-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesDec 26, 2022This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.25
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.34
T;.;T;.;.;.;.;.;.;.;T;.;.;.;.;.;.;T;T
Eigen
Benign
-0.49
Eigen_PC
Benign
-0.41
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
.;D;.;.;.;.;D;.;.;.;D;D;.;D;D;D;D;D;D
M_CAP
Pathogenic
0.53
D
MetaRNN
Benign
0.053
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.24
D
MutationAssessor
Benign
0.0
N;.;.;.;N;N;.;N;N;N;N;.;N;N;N;N;N;.;.
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-1.2
N;.;.;.;.;.;.;.;.;.;N;.;.;N;.;N;.;N;N
REVEL
Benign
0.28
Sift
Uncertain
0.0060
D;.;.;.;.;.;.;.;.;.;D;.;.;D;.;D;.;D;D
Sift4G
Benign
0.19
T;.;.;.;.;.;.;.;.;.;T;.;.;T;T;T;T;T;T
Polyphen
0.18
B;.;D;.;.;.;.;.;.;.;B;.;.;.;.;.;.;.;D
Vest4
0.46
MutPred
0.18
Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);Loss of glycosylation at S140 (P = 0.0909);
MVP
0.66
MPC
0.86
ClinPred
0.086
T
GERP RS
3.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.11
gMVP
0.48

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs535299273; hg19: chr19-11096916; COSMIC: COSV60812529; COSMIC: COSV60812529; API