19-10961203-C-T

Position:

• chr19-10961203-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Moderate BP6_Moderate BS1 BS2

The NM_001387283.1(SMARCA4):​c.-29+29C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00175 in 146,862 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 Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.0017 (0 hom., cov: 31)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: SMARCA4 NM_001387283.1 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.0760

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.45).
• BP6: Variant 19-10961203-C-T is Benign according to our data. Variant chr19-10961203-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1694888.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00175 (257/146862) while in subpopulation NFE AF= 0.00283 (187/66064). AF 95% confidence interval is 0.0025. There are 0 homozygotes in gnomad4. There are 109 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 257 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SMARCA4	NM_001387283.1	c.-29+29C>T		intron_variant		ENST00000646693.2
SMARCA4	NM_003072.5	c.-32+29C>T		intron_variant		ENST00000344626.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SMARCA4	ENST00000344626.10	c.-32+29C>T		intron_variant		1	NM_003072.5	P4
SMARCA4	ENST00000646693.2	c.-29+29C>T		intron_variant			NM_001387283.1

Frequencies

GnomAD3 genomes AF: 0.00175 AC: 257 AN: 146752 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.000571

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00242

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00149

Gnomad FIN AF: 0.000214

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00283

Gnomad OTH AF: 0.000989

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 54 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 28

Gnomad4 SAS exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

GnomAD4 genome AF: 0.00175 AC: 257 AN: 146862 Hom.: 0 Cov.: 31 AF XY: 0.00152 AC XY: 109 AN XY: 71614

Gnomad4 AFR AF: 0.000570

Gnomad4 AMR AF: 0.00241

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00149

Gnomad4 FIN AF: 0.000214

Gnomad4 NFE AF: 0.00283

Gnomad4 OTH AF: 0.000978

Alfa AF: 0.00164 Hom.: 0

Bravo AF: 0.00175

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Jul 01, 2023

SMARCA4: BS1 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.45
CADD	Benign	12
DANN	Uncertain	0.98
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs542032487; hg19: chr19-11071879;