17-40632266-C-G

Variant names:

• chr17-40632266-C-G
• rs376327613
• NM_003079.5:c.643G>C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_003079.5(SMARCE1):​c.643G>C​(p.Val215Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V215I) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SMARCE1 NM_003079.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.61
• 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 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2834806).

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.643G>C	p.Val215Leu	missense	Exon 8 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.643G>C	p.Val215Leu	missense	Exon 8 of 11	ENSP00000323967.6
	SMARCE1	ENST00000578044.6	TSL:1	c.433G>C	p.Val145Leu	missense	Exon 5 of 8	ENSP00000464511.1
	SMARCE1	ENST00000377808.9	TSL:1	c.538G>C	p.Val180Leu	missense	Exon 7 of 11	ENSP00000367039.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Uncertain	0.033	T
BayesDel_noAF	Benign	-0.19
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.36	T
Eigen	Benign	0.081
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.019	T
MetaRNN	Benign	0.28	T
MetaSVM	Benign	-0.98	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		7.6
PrimateAI	Pathogenic	0.82	D
PROVEAN	Uncertain	-2.5	D
REVEL	Benign	0.21
Sift	Benign	0.19	T
Sift4G	Benign	0.13	T
Polyphen		0.0070	B
Vest4		0.67
MutPred		0.20		Loss of helix (P = 0.0104)
MVP		0.44
MPC		0.60
ClinPred		0.93	D
GERP RS		4.7
Varity_R		0.47
gMVP		0.62
Mutation Taster		=15/85	disease causing

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: rs376327613; hg19: chr17-38788518;