NM_003079.5:c.276G>C

Variant names:

• chr17-40636488-C-G
• rs1555605795
• NM_003079.5:c.276G>C

Variant summary

Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PM1 PM2 PM5 PP5_Very_Strong

The NM_003079.5(SMARCE1):​c.276G>C​(p.Lys92Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K92Q) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SMARCE1 NM_003079.5 missense
• Clinical Significance: Likely pathogenic criteria provided, multiple submitters, no conflicts P:2
• Conservation: PhyloP100: 3.36
• 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: Pathogenic. The variant received 14 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in NM_003079.5
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr17-40636490-T-G is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 1335269.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP5: Variant 17-40636488-C-G is Pathogenic according to our data. Variant chr17-40636488-C-G is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 559876.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

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.276G>C	p.Lys92Asn	missense	Exon 6 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.276G>C	p.Lys92Asn	missense	Exon 6 of 11	ENSP00000323967.6
	SMARCE1	ENST00000578044.6	TSL:1	c.66G>C	p.Lys22Asn	missense	Exon 3 of 8	ENSP00000464511.1
	SMARCE1	ENST00000377808.9	TSL:1	c.171G>C	p.Lys57Asn	missense	Exon 5 of 11	ENSP00000367039.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Coffin-Siris syndrome 5 Pathogenic:2

Apr 11, 2023

Baylor Genetics

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Sep 13, 2017

Equipe Genetique des Anomalies du Developpement, Université de Bourgogne

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.20	D
BayesDel_noAF	Uncertain	0.040
CADD	Uncertain	24
DANN	Uncertain	0.98
DEOGEN2	Pathogenic	0.81	D
Eigen	Benign	0.053
Eigen_PC	Benign	0.15
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Pathogenic	0.40	D
MetaRNN	Uncertain	0.65	D
MetaSVM	Pathogenic	0.86	D
MutationAssessor	Uncertain	2.4	M
PhyloP100		3.4
PrimateAI	Pathogenic	0.92	D
PROVEAN	Pathogenic	-4.8	D
REVEL	Uncertain	0.56
Sift	Uncertain	0.013	D
Sift4G	Uncertain	0.045	D
Polyphen		0.066	B
Vest4		0.82
MutPred		0.49		Loss of ubiquitination at K92 (P = 0.0148)
MVP		0.89
MPC		2.8
ClinPred		0.97	D
GERP RS		3.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.93
gMVP		0.94
Mutation Taster		=6/94	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1555605795; hg19: chr17-38792740;