Variant chr15-74854648-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_005697.5(SCAMP2):c.59A>T(p.Asp20Val) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000687 in 1,455,960 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

SCAMP2
NM_005697.5 missense, splice_region

Scores

Splicing: ADA: 0.8628

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.37

Variant links:

Genes affected

SCAMP2 (HGNC:10564): (secretory carrier membrane protein 2) This gene product belongs to the SCAMP family of proteins which are secretory carrier membrane proteins. They function as carriers to the cell surface in post-golgi recycling pathways. Different family members are highly related products of distinct genes, and are usually expressed together. These findings suggest that the SCAMPs may function at the same site during vesicular transport rather than in separate pathways. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2016]

SCAMP2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.775

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SCAMP2	NM_005697.5 linkuse as main transcript	c.59A>T	p.Asp20Val	missense_variant, splice_region_variant	2/9	ENST00000268099.13	NP_005688.2
SCAMP2	NM_001320778.2 linkuse as main transcript	c.59A>T	p.Asp20Val	missense_variant, splice_region_variant	2/10		NP_001307707.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SCAMP2	ENST00000268099.13 linkuse as main transcript	c.59A>T	p.Asp20Val	missense_variant, splice_region_variant	2/9	1	NM_005697.5	ENSP00000268099	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000422

AC:

AN:

236834

Hom.:

AF XY:

0.00000778

AC XY:

AN XY:

128500

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000561

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:

6.87e-7

AC:

AN:

1455960

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

723682

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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

Apr 05, 2023

The c.59A>T (p.D20V) alteration is located in exon 2 (coding exon 2) of the SCAMP2 gene. This alteration results from a A to T substitution at nucleotide position 59, causing the aspartic acid (D) at amino acid position 20 to be replaced by a valine (V). 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

Pathogenic

0.91

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Pathogenic

0.25

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

T;T

Eigen

Pathogenic

0.80

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Pathogenic

1.0

D;D

M_CAP

Benign

0.084

MetaRNN

Pathogenic

0.77

D;D

MetaSVM

Benign

-0.71

MutationAssessor

Pathogenic

3.0

M;.

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.80

PROVEAN

Pathogenic

-7.6

D;D

REVEL

Uncertain

0.58

Sift

Uncertain

0.0010

D;D

Sift4G

Pathogenic

0.0

D;.

Polyphen

1.0

D;.

Vest4

0.98

MutPred

0.59

Loss of disorder (P = 0.1002);Loss of disorder (P = 0.1002);

MVP

0.90

MPC

1.4

ClinPred

1.0

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.81

gMVP

0.72

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.86

dbscSNV1_RF

Pathogenic

0.73

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