17-45845135-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_175882.3(SPPL2C):c.229C>T(p.His77Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000853 in 1,610,674 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0046 ( 6 hom., cov: 33)

Exomes 𝑓: 0.00046 ( 9 hom. )

Consequence

SPPL2C
NM_175882.3 missense

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.807

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 Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0048868656).

BP6

Variant 17-45845135-C-T is Benign according to our data. Variant chr17-45845135-C-T is described in ClinVar as [Benign]. Clinvar id is 781369.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00464 (707/152322) while in subpopulation AFR AF= 0.0162 (672/41578). AF 95% confidence interval is 0.0152. There are 6 homozygotes in gnomad4. There are 333 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd at 6 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SPPL2C	NM_175882.3 linkuse as main transcript	c.229C>T	p.His77Tyr	missense_variant	1/1	ENST00000329196.7
MAPT-AS1	NR_024559.1 linkuse as main transcript	n.35-974G>A		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.229C>T	p.His77Tyr	missense_variant	1/1		NM_175882.3	P1
MAPT-AS1	ENST00000634876.2 linkuse as main transcript	n.183-974G>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.00465

AC:

707

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0162

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00177

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:

0.0000294

Gnomad OTH

AF:

0.00287

GnomAD3 exomes

AF:

0.00120

AC:

299

AN:

249736

Hom.:

AF XY:

0.000703

AC XY:

AN XY:

135138

show subpopulations

Gnomad AFR exome

AF:

0.0165

Gnomad AMR exome

AF:

0.000783

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000821

GnomAD4 exome

AF:

0.000457

AC:

667

AN:

1458352

Hom.:

Cov.:

AF XY:

0.000378

AC XY:

274

AN XY:

724664

show subpopulations

Gnomad4 AFR exome

AF:

0.0169

Gnomad4 AMR exome

AF:

0.000940

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.000847

GnomAD4 genome

AF:

0.00464

AC:

707

AN:

152322

Hom.:

Cov.:

AF XY:

0.00447

AC XY:

333

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.0162

Gnomad4 AMR

AF:

0.00176

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.000599

Hom.:

Bravo

AF:

0.00501

ESP6500AA

AF:

0.0157

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00154

AC:

187

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Apr 17, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.079

BayesDel_addAF

Benign

-0.65

BayesDel_noAF

Benign

-0.70

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.0054

Eigen

Benign

0.074

Eigen_PC

Benign

-0.039

FATHMM_MKL

Benign

0.45

LIST_S2

Benign

0.45

MetaRNN

Benign

0.0049

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.6

MutationTaster

Benign

0.81

PrimateAI

Benign

0.31

PROVEAN

Benign

-1.9

REVEL

Benign

0.080

Sift

Benign

0.042

Sift4G

Uncertain

0.041

Polyphen

0.85

Vest4

0.27

MVP

0.014

MPC

0.49

ClinPred

0.045

GERP RS

4.2

Varity_R

0.058

gMVP

0.25

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