15-29268808-G-A

Position:

chr15-29268808-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_138704.4(NSMCE3):c.898C>T(p.Pro300Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000224 in 1,609,726 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

NSMCE3
NM_138704.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.418

Variant links:

Genes affected

NSMCE3 (HGNC:7677): (NSE3 homolog, SMC5-SMC6 complex component) The protein encoded by this gene is part of the SMC5-6 chromatin reorganizing complex and is a member of the MAGE superfamily. This is an intronless gene. [provided by RefSeq, May 2011]

NSMCE3 links:

ENTREP2 (HGNC:29075): (endosomal transmembrane epsin interactor 2) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ENTREP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.043320447).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NSMCE3	NM_138704.4 linkuse as main transcript	c.898C>T	p.Pro300Ser	missense_variant	1/1	ENST00000332303.6
ENTREP2	NM_015307.2 linkuse as main transcript	c.277-16330C>T		intron_variant		ENST00000261275.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NSMCE3	ENST00000332303.6 linkuse as main transcript	c.898C>T	p.Pro300Ser	missense_variant	1/1		NM_138704.4	P1
ENTREP2	ENST00000261275.5 linkuse as main transcript	c.277-16330C>T		intron_variant		5	NM_015307.2	P1	O60320-1
ENTREP2	ENST00000560082.1 linkuse as main transcript	c.-12-16330C>T		intron_variant		4

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

249546

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

134788

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000199

AC:

AN:

1457678

Hom.:

Cov.:

AF XY:

0.0000207

AC XY:

AN XY:

724348

show subpopulations

Gnomad4 AFR exome

AF:

0.000180

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000253

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000189

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152048

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74268

show subpopulations

Gnomad4 AFR

AF:

0.0000966

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000508

Hom.:

Bravo

AF:

0.0000529

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 10, 2022

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 300 of the NSMCE3 protein (p.Pro300Ser). This variant is present in population databases (rs746567225, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with NSMCE3-related conditions. ClinVar contains an entry for this variant (Variation ID: 1376218). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The serine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.64

CADD

Benign

8.6

DANN

Benign

0.73

DEOGEN2

Benign

0.0046

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.085

LIST_S2

Benign

0.35

M_CAP

Benign

0.0018

MetaRNN

Benign

0.043

MetaSVM

Benign

-0.89

MutationTaster

Benign

1.0

N;N

PrimateAI

Uncertain

0.51

PROVEAN

Benign

0.67

REVEL

Benign

0.098

Sift

Benign

0.32

Sift4G

Benign

0.76

Polyphen

0.011

Vest4

0.21

MVP

0.076

MPC

0.43

ClinPred

0.017

GERP RS

3.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.061

gMVP

0.35

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over