rs746219091

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_003072.5(SMARCA4):c.3830C>A(p.Pro1277Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000159 in 627,440 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).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000016 ( 0 hom. )

Consequence

SMARCA4
NM_003072.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 4.14

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:

ENSG00000278643 (HGNC:):

ENSG00000278643 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 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.

BP4

Computational evidence support a benign effect (MetaRNN=0.2541863).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SMARCA4	NM_001387283.1 link	c.3830C>A	p.Pro1277Gln	missense_variant	Exon 27 of 36	ENST00000646693.2	NP_001374212.1
SMARCA4	NM_003072.5 link	c.3830C>A	p.Pro1277Gln	missense_variant	Exon 27 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.3830C>A	p.Pro1277Gln	missense_variant	Exon 27 of 36		NM_001387283.1	ENSP00000495368.1	Q9HBD4
SMARCA4	ENST00000344626.10 link	c.3830C>A	p.Pro1277Gln	missense_variant	Exon 27 of 35	1	NM_003072.5	ENSP00000343896.4	P51532-1
SMARCA4	ENST00000643995.1 link	c.3242C>A	p.Pro1081Gln	missense_variant	Exon 24 of 32			ENSP00000496004.1	A0A2R8YGG3
SMARCA4	ENST00000644963.1 link	c.2474C>A	p.Pro825Gln	missense_variant	Exon 20 of 28			ENSP00000495599.1	A0A2R8YG32
SMARCA4	ENST00000642350.1 link	c.2315C>A	p.Pro772Gln	missense_variant	Exon 19 of 27			ENSP00000495355.1	A0A2R8Y6N0
SMARCA4	ENST00000643857.1 link	c.2183C>A	p.Pro728Gln	missense_variant	Exon 18 of 25			ENSP00000494159.1	A0A2R8Y526
SMARCA4	ENST00000643549.1 link	c.3775-301C>A		intron_variant	Intron 26 of 34			ENSP00000493975.1	A0A2R8Y4P4
SMARCA4	ENST00000541122.6 link	c.3775-301C>A		intron_variant	Intron 27 of 34	5		ENSP00000445036.2	P51532-4
SMARCA4	ENST00000643296.1 link	c.3775-301C>A		intron_variant	Intron 26 of 33			ENSP00000496635.1	P51532-4
SMARCA4	ENST00000644737.1 link	c.3775-301C>A		intron_variant	Intron 26 of 33			ENSP00000495548.1	P51532-4
SMARCA4	ENST00000589677.5 link	c.3775-301C>A		intron_variant	Intron 27 of 34	5		ENSP00000464778.1	P51532-3
SMARCA4	ENST00000644065.1 link	c.2500-301C>A		intron_variant	Intron 19 of 26			ENSP00000493615.1	A0A2R8Y440
SMARCA4	ENST00000538456.4 link	c.31-301C>A		intron_variant	Intron 1 of 7	3		ENSP00000495197.1	A0A2R8YFK5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000159

AC:

AN:

627440

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

341862

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:

0.00000286

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Rhabdoid tumor predisposition syndrome 2

Uncertain:2

Jul 30, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces proline, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 1277 of the SMARCA4 protein (p.Pro1277Gln). 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: 470369). 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. -

Feb 22, 2024

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

- -

not provided

Uncertain:1

Oct 20, 2023

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 does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Hereditary cancer-predisposing syndrome

Benign:1

Dec 17, 2020

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

0.077

BayesDel_addAF

Uncertain

0.050

BayesDel_noAF

Benign

-0.17

CADD

Uncertain

DANN

Benign

0.96

DEOGEN2

Benign

0.22

T;T;T;T;.;.

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.76

.;.;T;T;T;T

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.25

T;T;T;T;T;T

MetaSVM

Uncertain

0.20

MutationAssessor

Benign

0.0

N;.;N;.;.;.

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.66

N;.;N;.;.;.

REVEL

Uncertain

0.39

Sift

Benign

0.26

T;.;T;.;.;.

Sift4G

Benign

0.62

T;.;T;T;.;.

Polyphen

0.99

D;B;D;B;.;.

Vest4

0.34

MutPred

0.24

Loss of glycosylation at P1277 (P = 0.0359);Loss of glycosylation at P1277 (P = 0.0359);Loss of glycosylation at P1277 (P = 0.0359);Loss of glycosylation at P1277 (P = 0.0359);.;.;

MVP

0.72

MPC

1.4

ClinPred

0.37

GERP RS

5.2

Varity_R

0.16

gMVP

0.63

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