rs1221798183

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_003072.5(SMARCA4):c.4042A>G(p.Ile1348Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000158 in 1,459,398 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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: not found (cov: 33)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

SMARCA4
NM_003072.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 2.12

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant in the SMARCA4 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 59 curated pathogenic missense variants (we use a threshold of 10). The gene has 56 curated benign missense variants. Gene score misZ: 6.8459 (above the threshold of 3.09). Trascript score misZ: 8.7957 (above the threshold of 3.09). GenCC associations: The gene is linked to 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=0.09307155).

BS2

High AC in GnomAdExome4 at 23 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SMARCA4	NM_001387283.1 link	c.4042A>G	p.Ile1348Val	missense_variant	Exon 29 of 36	ENST00000646693.2	NP_001374212.1
SMARCA4	NM_003072.5 link	c.4042A>G	p.Ile1348Val	missense_variant	Exon 29 of 35	ENST00000344626.10	NP_003063.2	P51532-1A7E2E1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SMARCA4	ENST00000646693.2 link	c.4042A>G	p.Ile1348Val	missense_variant	Exon 29 of 36		NM_001387283.1	ENSP00000495368.1	Q9HBD4
SMARCA4	ENST00000344626.10 link	c.4042A>G	p.Ile1348Val	missense_variant	Exon 29 of 35	1	NM_003072.5	ENSP00000343896.4	P51532-1
SMARCA4	ENST00000643549.1 link	c.3943A>G	p.Ile1315Val	missense_variant	Exon 28 of 35			ENSP00000493975.1	A0A2R8Y4P4
SMARCA4	ENST00000541122.6 link	c.3943A>G	p.Ile1315Val	missense_variant	Exon 29 of 35	5		ENSP00000445036.2	P51532-4
SMARCA4	ENST00000643296.1 link	c.3943A>G	p.Ile1315Val	missense_variant	Exon 28 of 34			ENSP00000496635.1	P51532-4
SMARCA4	ENST00000644737.1 link	c.3943A>G	p.Ile1315Val	missense_variant	Exon 28 of 34			ENSP00000495548.1	P51532-4
SMARCA4	ENST00000589677.5 link	c.3943A>G	p.Ile1315Val	missense_variant	Exon 29 of 35	5		ENSP00000464778.1	P51532-3
SMARCA4	ENST00000643995.1 link	c.3454A>G	p.Ile1152Val	missense_variant	Exon 26 of 32			ENSP00000496004.1	A0A2R8YGG3
SMARCA4	ENST00000644963.1 link	c.2686A>G	p.Ile896Val	missense_variant	Exon 22 of 28			ENSP00000495599.1	A0A2R8YG32
SMARCA4	ENST00000644065.1 link	c.2668A>G	p.Ile890Val	missense_variant	Exon 21 of 27			ENSP00000493615.1	A0A2R8Y440
SMARCA4	ENST00000642350.1 link	c.2527A>G	p.Ile843Val	missense_variant	Exon 21 of 27			ENSP00000495355.1	A0A2R8Y6N0
SMARCA4	ENST00000643857.1 link	c.2395A>G	p.Ile799Val	missense_variant	Exon 20 of 25			ENSP00000494159.1	A0A2R8Y526
SMARCA4	ENST00000538456.4 link	c.199A>G	p.Ile67Val	missense_variant	Exon 3 of 8	3		ENSP00000495197.1	A0A2R8YFK5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000816

AC:

AN:

245032

Hom.:

AF XY:

0.00

AC XY:

AN XY:

133198

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000181

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000158

AC:

AN:

1459398

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

725868

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000198

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

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

May 27, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt SMARCA4 protein function. ClinVar contains an entry for this variant (Variation ID: 470379). This variant has not been reported in the literature in individuals affected with SMARCA4-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.002%). This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1348 of the SMARCA4 protein (p.Ile1348Val). -

Sep 27, 2023

Baylor Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Intellectual disability, autosomal dominant 16

Uncertain:1

Jul 15, 2021

Genome-Nilou Lab

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome

Benign:1

Dec 20, 2021

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

0.11

BayesDel_addAF

Benign

-0.070

BayesDel_noAF

Benign

-0.32

CADD

Uncertain

DANN

Benign

0.74

DEOGEN2

Benign

0.20

T;.;T;.;.;.;.;.;.;.;T;.;.;.;.;.;T;T;.;.;.;.

Eigen

Benign

-0.63

Eigen_PC

Benign

-0.37

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.94

.;D;.;.;.;.;D;.;.;.;D;.;D;D;D;D;D;D;D;D;D;D

M_CAP

Uncertain

0.24

MetaRNN

Benign

0.093

T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.68

MutationAssessor

Benign

-1.2

N;.;.;.;.;.;.;.;.;.;N;.;.;.;.;.;.;.;.;.;.;.

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.020

N;.;.;.;.;.;.;.;.;.;N;.;N;.;N;.;.;.;.;.;.;.

REVEL

Benign

0.26

Sift

Benign

0.76

T;.;.;.;.;.;.;.;.;.;T;.;T;.;T;.;.;.;.;.;.;.

Sift4G

Benign

0.83

T;.;.;.;.;.;.;.;.;.;T;.;T;T;T;T;T;T;.;.;.;.

Polyphen

0.0020

B;.;B;.;.;.;.;.;.;.;B;.;.;.;.;.;.;B;.;.;.;.

Vest4

0.20

MutPred

0.28

Loss of helix (P = 0.0104);.;Loss of helix (P = 0.0104);.;.;.;.;.;.;.;Loss of helix (P = 0.0104);.;.;.;.;.;.;Loss of helix (P = 0.0104);.;.;.;.;

MVP

0.50

MPC

1.4

ClinPred

0.091

GERP RS

4.6

La Branchor

0.55

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.083

gMVP

0.86

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over