rs773720929

Variant names:

• chr17-40635947-A-G
• rs773720929
• NM_003079.5:c.525T>C

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_Moderate BP6_Very_Strong BP7 BS2

The NM_003079.5(SMARCE1):​c.525T>C​(p.Pro175Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000421 in 1,425,186 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: not found (cov: 32)
  • Exomes 𝑓: 0.0000042 (0 hom.)
• Consequence: SMARCE1 NM_003079.5 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: -0.627
• Publications: 0 publications found

Genes affected

SMARCE1 (HGNC:11109): (SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily e, member 1) The protein encoded by this gene is part of the large ATP-dependent chromatin remodeling complex SWI/SNF, which is required for transcriptional activation of genes normally repressed by chromatin. The encoded protein, either alone or when in the SWI/SNF complex, can bind to 4-way junction DNA, which is thought to mimic the topology of DNA as it enters or exits the nucleosome. The protein contains a DNA-binding HMG domain, but disruption of this domain does not abolish the DNA-binding or nucleosome-displacement activities of the SWI/SNF complex. Unlike most of the SWI/SNF complex proteins, this protein has no yeast counterpart. [provided by RefSeq, Jul 2008]

SMARCE1 Gene-Disease associations (from GenCC):

• familial meningioma

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, G2P, Ambry Genetics
• Coffin-Siris syndrome 5

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
• Coffin-Siris syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• familial multiple meningioma

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000264058 (HGNC:):

ACMG classification

Our verdict: Benign. The variant received -15 ACMG points.

• BP4: Computational evidence support a benign effect (REVEL=0.036).
• BP6: Variant 17-40635947-A-G is Benign according to our data. Variant chr17-40635947-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 414255.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-0.627 with no splicing effect.
• BS2: High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SMARCE1	NM_003079.5	c.525T>C	p.Pro175Pro	synonymous_variant	Exon 7 of 11	ENST00000348513.12	NP_003070.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SMARCE1	ENST00000348513.12	c.525T>C	p.Pro175Pro	synonymous_variant	Exon 7 of 11	1	NM_003079.5	ENSP00000323967.6
ENSG00000264058	ENST00000476049.1	n.*873T>C		non_coding_transcript_exon_variant	Exon 9 of 13	5		ENSP00000463483.1
ENSG00000264058	ENST00000476049.1	n.*873T>C		3_prime_UTR_variant	Exon 9 of 13	5		ENSP00000463483.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000439 AC: 1 AN: 227778 AF XY: 0.00000811

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000931

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000421 AC: 6 AN: 1425186 Hom.: 0 Cov.: 30 AF XY: 0.00000708 AC XY: 5 AN XY: 706090

African (AFR) AF: 0.00 AC: 0 AN: 31830

American (AMR) AF: 0.00 AC: 0 AN: 38232

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25200

East Asian (EAS) AF: 0.00 AC: 0 AN: 38494

South Asian (SAS) AF: 0.00 AC: 0 AN: 77738

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53036

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5666

European-Non Finnish (NFE) AF: 0.00000547 AC: 6 AN: 1096058

Other (OTH) AF: 0.00 AC: 0 AN: 58932

GnomAD4 genome Cov.: 32

Alfa AF: 0.000111 Hom.: 0

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Rhabdoid tumor predisposition syndrome 1 Benign:1

Jul 07, 2023

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Familial meningioma Benign:1

Oct 21, 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

Dec 15, 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. -

SMARCB1-related schwannomatosis Benign:1

Feb 01, 2025

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.63
CADD	Benign	10
DANN	Benign	0.78
PhyloP100		-0.63

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

Other links and lift over

dbSNP: rs773720929; hg19: chr17-38792199;