17-40628808-G-T

Position:

• chr17-40628808-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_003079.5(SMARCE1):​c.1213C>A​(p.Pro405Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SMARCE1 NM_003079.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.38

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]

ENSG00000264058 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12608549).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SMARCE1	NM_003079.5	c.1213C>A	p.Pro405Thr	missense_variant	11/11	ENST00000348513.12	NP_003070.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SMARCE1	ENST00000348513.12	c.1213C>A	p.Pro405Thr	missense_variant	11/11	1	NM_003079.5	ENSP00000323967.6
ENSG00000264058	ENST00000476049.1	n.*1561C>A		non_coding_transcript_exon_variant	13/13	5		ENSP00000463483.1
ENSG00000264058	ENST00000476049.1	n.*1561C>A		3_prime_UTR_variant	13/13	5		ENSP00000463483.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 17, 2024

The p.P405T variant (also known as c.1213C>A), located in coding exon 10 of the SMARCE1 gene, results from a C to A substitution at nucleotide position 1213. The proline at codon 405 is replaced by threonine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.062
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	18
DANN	Benign	0.93
DEOGEN2	Benign	0.15	T;.;.;.;T;.;T;.
Eigen	Benign	-0.17
Eigen_PC	Benign	0.011
FATHMM_MKL	Uncertain	0.85	D
LIST_S2	Benign	0.83	.;.;T;T;T;T;T;T
M_CAP	Benign	0.0036	T
MetaRNN	Benign	0.13	T;T;T;T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.63	N;.;.;.;N;.;.;.
PrimateAI	Benign	0.38	T
PROVEAN	Uncertain	-2.7	D;.;.;.;.;.;D;.
REVEL	Benign	0.076
Sift	Uncertain	0.0060	D;.;.;.;.;.;D;.
Sift4G	Benign	0.096	T;.;.;.;.;.;T;T
Polyphen		0.0	B;.;.;.;B;.;.;.
Vest4		0.074
MutPred		0.28		Gain of phosphorylation at P405 (P = 0.0014);.;.;.;Gain of phosphorylation at P405 (P = 0.0014);.;.;.;
MVP		0.18
MPC		0.64
ClinPred		0.73	D
GERP RS		5.5
Varity_R		0.17
gMVP		0.033

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-38785060;