rs1555779989

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_003072.5(SMARCA4):c.2995G>A(p.Asp999Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,560 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SMARCA4
NM_003072.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 9.76

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 Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

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.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SMARCA4	NM_001387283.1 link	c.2995G>A	p.Asp999Asn	missense_variant	Exon 21 of 36	ENST00000646693.2	NP_001374212.1
SMARCA4	NM_003072.5 link	c.2995G>A	p.Asp999Asn	missense_variant	Exon 21 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.2995G>A	p.Asp999Asn	missense_variant	Exon 21 of 36		NM_001387283.1	ENSP00000495368.1	Q9HBD4
SMARCA4	ENST00000344626.10 link	c.2995G>A	p.Asp999Asn	missense_variant	Exon 21 of 35	1	NM_003072.5	ENSP00000343896.4	P51532-1
SMARCA4	ENST00000643549.1 link	c.2995G>A	p.Asp999Asn	missense_variant	Exon 21 of 35			ENSP00000493975.1	A0A2R8Y4P4
SMARCA4	ENST00000541122.6 link	c.2995G>A	p.Asp999Asn	missense_variant	Exon 22 of 35	5		ENSP00000445036.2	P51532-4
SMARCA4	ENST00000643296.1 link	c.2995G>A	p.Asp999Asn	missense_variant	Exon 21 of 34			ENSP00000496635.1	P51532-4
SMARCA4	ENST00000644737.1 link	c.2995G>A	p.Asp999Asn	missense_variant	Exon 21 of 34			ENSP00000495548.1	P51532-4
SMARCA4	ENST00000589677.5 link	c.2995G>A	p.Asp999Asn	missense_variant	Exon 22 of 35	5		ENSP00000464778.1	P51532-3
SMARCA4	ENST00000643995.1 link	c.2407G>A	p.Asp803Asn	missense_variant	Exon 18 of 32			ENSP00000496004.1	A0A2R8YGG3
SMARCA4	ENST00000644963.1 link	c.1639G>A	p.Asp547Asn	missense_variant	Exon 14 of 28			ENSP00000495599.1	A0A2R8YG32
SMARCA4	ENST00000644065.1 link	c.1720G>A	p.Asp574Asn	missense_variant	Exon 14 of 27			ENSP00000493615.1	A0A2R8Y440
SMARCA4	ENST00000642350.1 link	c.1480G>A	p.Asp494Asn	missense_variant	Exon 13 of 27			ENSP00000495355.1	A0A2R8Y6N0
SMARCA4	ENST00000643857.1 link	c.1348G>A	p.Asp450Asn	missense_variant	Exon 12 of 25			ENSP00000494159.1	A0A2R8Y526

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460560

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726592

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

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

- -

Rhabdoid tumor predisposition syndrome 2

Uncertain:1

May 15, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 999 of the SMARCA4 protein (p.Asp999Asn). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with SMARCA4-related conditions. ClinVar contains an entry for this variant (Variation ID: 470330). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on SMARCA4 protein function. 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. -

not provided

Uncertain:1

Feb 17, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 24658002) -

Hereditary cancer-predisposing syndrome

Benign:1

Apr 13, 2023

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

Pathogenic

0.97

BayesDel_addAF

Benign

-0.020

BayesDel_noAF

Benign

-0.27

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.92

D;.;D;.;.;.;.;.;.;.;D;.;.;.;.;.;T;D;.;.;.;.

Eigen

Pathogenic

0.70

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.98

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

M_CAP

Uncertain

0.14

MetaRNN

Uncertain

0.67

D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

-0.038

MutationAssessor

Benign

0.58

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

PrimateAI

Pathogenic

0.92

PROVEAN

Uncertain

-4.1

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

REVEL

Uncertain

0.53

Sift

Benign

0.043

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

Sift4G

Benign

0.089

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

Polyphen

1.0

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

Vest4

0.80

MutPred

0.54

Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);Gain of MoRF binding (P = 0.0446);.;Gain of MoRF binding (P = 0.0446);.;.;.;.;

MVP

0.86

MPC

3.1

ClinPred

0.98

GERP RS

5.2

Varity_R

0.49

gMVP

0.93

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.

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