rs371304615

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_ModerateBP6BP7BS1BS2

The NM_003072.5(SMARCA4):​c.3831G>A​(p.Pro1277Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000154 in 779,300 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: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

SMARCA4
NM_003072.5 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 3.47
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.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.42).
BP6
Variant 19-11033823-G-A is Benign according to our data. Variant chr19-11033823-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 537848.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=3.47 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0000329 (5/151882) while in subpopulation NFE AF= 0.0000736 (5/67966). AF 95% confidence interval is 0.0000285. There are 0 homozygotes in gnomad4. There are 1 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMARCA4NM_001387283.1 linkc.3831G>A p.Pro1277Pro synonymous_variant Exon 27 of 36 ENST00000646693.2 NP_001374212.1
SMARCA4NM_003072.5 linkc.3831G>A p.Pro1277Pro synonymous_variant Exon 27 of 35 ENST00000344626.10 NP_003063.2 P51532-1A7E2E1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMARCA4ENST00000646693.2 linkc.3831G>A p.Pro1277Pro synonymous_variant Exon 27 of 36 NM_001387283.1 ENSP00000495368.1 Q9HBD4
SMARCA4ENST00000344626.10 linkc.3831G>A p.Pro1277Pro synonymous_variant Exon 27 of 35 1 NM_003072.5 ENSP00000343896.4 P51532-1
SMARCA4ENST00000643995.1 linkc.3243G>A p.Pro1081Pro synonymous_variant Exon 24 of 32 ENSP00000496004.1 A0A2R8YGG3
SMARCA4ENST00000644963.1 linkc.2475G>A p.Pro825Pro synonymous_variant Exon 20 of 28 ENSP00000495599.1 A0A2R8YG32
SMARCA4ENST00000642350.1 linkc.2316G>A p.Pro772Pro synonymous_variant Exon 19 of 27 ENSP00000495355.1 A0A2R8Y6N0
SMARCA4ENST00000643857.1 linkc.2184G>A p.Pro728Pro synonymous_variant Exon 18 of 25 ENSP00000494159.1 A0A2R8Y526
SMARCA4ENST00000643549.1 linkc.3775-300G>A intron_variant Intron 26 of 34 ENSP00000493975.1 A0A2R8Y4P4
SMARCA4ENST00000541122.6 linkc.3775-300G>A intron_variant Intron 27 of 34 5 ENSP00000445036.2 P51532-4
SMARCA4ENST00000643296.1 linkc.3775-300G>A intron_variant Intron 26 of 33 ENSP00000496635.1 P51532-4
SMARCA4ENST00000644737.1 linkc.3775-300G>A intron_variant Intron 26 of 33 ENSP00000495548.1 P51532-4
SMARCA4ENST00000589677.5 linkc.3775-300G>A intron_variant Intron 27 of 34 5 ENSP00000464778.1 P51532-3
SMARCA4ENST00000644065.1 linkc.2500-300G>A intron_variant Intron 19 of 26 ENSP00000493615.1 A0A2R8Y440
SMARCA4ENST00000538456.4 linkc.31-300G>A intron_variant Intron 1 of 7 3 ENSP00000495197.1 A0A2R8YFK5

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
151882
Hom.:
0
Cov.:
33
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000736
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000409
AC:
1
AN:
244266
Hom.:
0
AF XY:
0.00000747
AC XY:
1
AN XY:
133810
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:
0.00000922
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000112
AC:
7
AN:
627418
Hom.:
0
Cov.:
0
AF XY:
0.00000585
AC XY:
2
AN XY:
341854
show subpopulations
Gnomad4 AFR exome
AF:
0.0000565
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000554
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000114
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
151882
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74174
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000736
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000227

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Oct 17, 2024
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The SMARCA4 c.3831G>A (p.Pro1277=) synonymous variant has not been reported in individuals with SMARCA4-related conditions in the published literature. The frequency of this variant in the general population, 0.0000073 (2/275580 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is uninformative in the assessment of its pathogenicity. Analysis of this variant using software algorithms for the prediction of the effect of nucleotide changes on splicing yielded predictions that this variant does not affect SMARCA4 mRNA splicing. Based on the available information, we are unable to determine the clinical significance of this variant. -

Rhabdoid tumor predisposition syndrome 2 Benign:1
Dec 22, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:1
May 25, 2019
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
BayesDel_noAF
Benign
-0.42
CADD
Benign
21
DANN
Benign
0.72

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.

Other links and lift over

dbSNP: rs371304615; hg19: chr19-11144499; COSMIC: COSV60795525; COSMIC: COSV60795525; API