dbSNP rs1672878272: SCAMP3:p.Met167Thr (chr1-155258843-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_005698.4(SCAMP3):c.500T>C(p.Met167Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,460,244 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 29)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SCAMP3
NM_005698.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.01

Publications

0 publications found

Variant links:

Genes affected

SCAMP3 (HGNC:10565): (secretory carrier membrane protein 3) This gene encodes an integral membrane protein that belongs to the secretory carrier membrane protein family. The encoded protein functions as a carrier to the cell surface in post-golgi recycling pathways. This protein is also involved in protein trafficking in endosomal pathways. Two transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, May 2011]

SCAMP3 links:

ENSG00000303088 (HGNC:):

ENSG00000303088 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCAMP3	NM_005698.4 link	c.500T>C	p.Met167Thr	missense_variant	Exon 5 of 9	ENST00000302631.8	NP_005689.2	O14828-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SCAMP3	ENST00000302631.8 link	c.500T>C	p.Met167Thr	missense_variant	Exon 5 of 9	1	NM_005698.4	ENSP00000307275.3		O14828-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1460244

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726452

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33316

American (AMR)

AF:

0.00

AC:

AN:

44470

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26100

East Asian (EAS)

AF:

0.0000253

AC:

AN:

39560

South Asian (SAS)

AF:

0.00

AC:

AN:

85958

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53406

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111346

Other (OTH)

AF:

0.0000166

AC:

AN:

60328

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 12, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.500T>C (p.M167T) alteration is located in exon 5 (coding exon 5) of the SCAMP3 gene. This alteration results from a T to C substitution at nucleotide position 500, causing the methionine (M) at amino acid position 167 to be replaced by a threonine (T). 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

0.58

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Uncertain

0.030

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.076

T;.

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Pathogenic

0.99

M_CAP

Benign

0.0062

MetaRNN

Uncertain

0.73

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.7

M;.

PhyloP100

9.0

PrimateAI

Pathogenic

0.82

PROVEAN

Uncertain

-3.9

D;D

REVEL

Uncertain

0.46

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.0080

D;D

Polyphen

0.99

D;P

Vest4

0.81

MutPred

0.47

Gain of glycosylation at M167 (P = 0.0364);.;

MVP

0.56

MPC

0.69

ClinPred

0.99

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.77

gMVP

0.73

Mutation Taster

=32/68

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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rs1672878272

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over