Genetic Variant SCAPER:p.Asn1280Ser (chr15-76376178-T-C) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_020843.4(SCAPER):c.3839A>G(p.Asn1280Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000638 in 1,613,942 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000064 ( 1 hom. )

Consequence

SCAPER
NM_020843.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.94

Variant links:

Genes affected

SCAPER (HGNC:13081): (S-phase cyclin A associated protein in the ER) Predicted to enable nucleic acid binding activity and zinc ion binding activity. Located in cytosol and nuclear speck. [provided by Alliance of Genome Resources, Apr 2022]

SCAPER links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.053325295).

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000591 (9/152294) while in subpopulation SAS AF= 0.000829 (4/4824). AF 95% confidence interval is 0.000283. There are 0 homozygotes in gnomad4. There are 5 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCAPER	NM_020843.4 link	c.3839A>G	p.Asn1280Ser	missense_variant	Exon 29 of 32	ENST00000563290.6	NP_065894.2	Q9BY12-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SCAPER	ENST00000563290.6 link	c.3839A>G	p.Asn1280Ser	missense_variant	Exon 29 of 32	5	NM_020843.4	ENSP00000454973.1	Q9BY12-1
SCAPER	ENST00000324767.11 link	c.3839A>G	p.Asn1280Ser	missense_variant	Exon 28 of 31	1		ENSP00000326924.7	Q9BY12-1
SCAPER	ENST00000538941.6 link	c.3101A>G	p.Asn1034Ser	missense_variant	Exon 29 of 32	1		ENSP00000442190.2	Q9BY12-3

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000924

AC:

AN:

249006

Hom.:

AF XY:

0.000133

AC XY:

AN XY:

135062

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000523

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000355

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000643

AC:

AN:

1461648

Hom.:

Cov.:

AF XY:

0.0000949

AC XY:

AN XY:

727114

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000510

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000387

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152294

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000829

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000491

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000511

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000662

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Aug 02, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3839A>G (p.N1280S) alteration is located in exon 28 (coding exon 28) of the SCAPER gene. This alteration results from a A to G substitution at nucleotide position 3839, causing the asparagine (N) at amino acid position 1280 to be replaced by a serine (S). 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

0.087

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.56

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.022

T;.;T

Eigen

Benign

-0.20

Eigen_PC

Benign

-0.052

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.91

.;D;D

M_CAP

Benign

0.0084

MetaRNN

Benign

0.053

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.7

M;.;M

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-1.5

N;N;N

REVEL

Benign

0.096

Sift

Benign

0.66

T;T;T

Sift4G

Benign

0.82

T;T;T

Vest4

0.28

MVP

0.25

MPC

0.24

ClinPred

0.052

GERP RS

3.5

Varity_R

0.14

gMVP

0.27

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