Variant 17-45844982-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_175882.3(SPPL2C):c.76G>A(p.Val26Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000917 in 1,614,110 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00044 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

SPPL2C
NM_175882.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.36

Variant links:

Genes affected

SPPL2C (HGNC:28902): (signal peptide peptidase like 2C) Enables protein homodimerization activity. Predicted to be involved in membrane protein proteolysis. Located in endoplasmic reticulum membrane. Is integral component of cytoplasmic side of endoplasmic reticulum membrane and integral component of lumenal side of endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

SPPL2C links:

MAPT-AS1 (HGNC:43738): (MAPT antisense RNA 1) Implicated in Parkinson's disease. [provided by Alliance of Genome Resources, Apr 2022]

MAPT-AS1 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=0.019800663).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SPPL2C	NM_175882.3 linkuse as main transcript	c.76G>A	p.Val26Met	missense_variant	1/1	ENST00000329196.7
MAPT-AS1	NR_024559.1 linkuse as main transcript	n.35-821C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPPL2C	ENST00000329196.7 linkuse as main transcript	c.76G>A	p.Val26Met	missense_variant	1/1		NM_175882.3	P1
MAPT-AS1	ENST00000634876.2 linkuse as main transcript	n.183-821C>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.000447

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00159

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000120

AC:

AN:

250964

Hom.:

AF XY:

0.0000958

AC XY:

AN XY:

135662

show subpopulations

Gnomad AFR exome

AF:

0.00105

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.000298

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000554

AC:

AN:

1461816

Hom.:

Cov.:

AF XY:

0.0000550

AC XY:

AN XY:

727204

show subpopulations

Gnomad4 AFR exome

AF:

0.00134

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.0000766

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.000440

AC:

AN:

152294

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74460

show subpopulations

Gnomad4 AFR

AF:

0.00156

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000813

Hom.:

Bravo

AF:

0.000502

ESP6500AA

AF:

0.00182

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000115

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 11, 2021

The c.76G>A (p.V26M) alteration is located in exon 1 (coding exon 1) of the SPPL2C gene. This alteration results from a G to A substitution at nucleotide position 76, causing the valine (V) at amino acid position 26 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.60

BayesDel_noAF

Benign

-0.64

Cadd

Benign

Dann

Benign

0.93

DEOGEN2

Benign

0.0019

Eigen

Benign

-0.54

Eigen_PC

Benign

-0.45

FATHMM_MKL

Benign

0.54

LIST_S2

Benign

0.70

M_CAP

Benign

0.0044

MetaRNN

Benign

0.020

MetaSVM

Benign

-0.95

MutationAssessor

Benign

1.0

MutationTaster

Benign

1.0

PrimateAI

Benign

0.41

PROVEAN

Benign

-0.82

REVEL

Benign

0.024

Sift

Benign

0.48

Sift4G

Benign

0.86

Polyphen

0.13

Vest4

0.23

MVP

0.13

MPC

0.51

ClinPred

0.0095

GERP RS

3.2

Varity_R

0.030

gMVP

0.55

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