17-40635941-T-G

Variant names:

• chr17-40635941-T-G
• rs377424178
• NM_003079.5:c.531A>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_003079.5(SMARCE1):​c.531A>C​(p.Glu177Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000704 in 1,420,372 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. E177E) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: SMARCE1 NM_003079.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.363
• 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: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20101762).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003079.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SMARCE1	NM_003079.5	MANE Select	c.531A>C	p.Glu177Asp	missense	Exon 7 of 11	NP_003070.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SMARCE1	ENST00000348513.12	TSL:1 MANE Select	c.531A>C	p.Glu177Asp	missense	Exon 7 of 11	ENSP00000323967.6
	SMARCE1	ENST00000578044.6	TSL:1	c.321A>C	p.Glu107Asp	missense	Exon 4 of 8	ENSP00000464511.1
	SMARCE1	ENST00000377808.9	TSL:1	c.426A>C	p.Glu142Asp	missense	Exon 6 of 11	ENSP00000367039.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.04e-7 AC: 1 AN: 1420372 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 703342

African (AFR) AF: 0.00 AC: 0 AN: 31596

American (AMR) AF: 0.00 AC: 0 AN: 37370

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25088

East Asian (EAS) AF: 0.00 AC: 0 AN: 38344

South Asian (SAS) AF: 0.0000130 AC: 1 AN: 76758

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52960

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5650

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1093858

Other (OTH) AF: 0.00 AC: 0 AN: 58748

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.43
BayesDel_addAF	Benign	-0.26	T
BayesDel_noAF	Benign	-0.61
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Benign	0.34	T
Eigen	Benign	-0.067
Eigen_PC	Benign	-0.054
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.87	D
M_CAP	Benign	0.0084	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	1.8	L
PhyloP100		0.36
PrimateAI	Pathogenic	0.85	D
PROVEAN	Benign	-2.3	N
REVEL	Benign	0.097
Sift	Benign	0.20	T
Sift4G	Benign	0.18	T
Polyphen		0.27	B
Vest4		0.35
MutPred		0.24		Gain of relative solvent accessibility (P = 0.0098)
MVP		0.58
MPC		0.69
ClinPred		0.51	D
GERP RS		0.76
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.68
gMVP		0.42
Mutation Taster		=51/49	polymorphism

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: rs377424178; hg19: chr17-38792193;