Genetic Variant TRAPPC13:p.Cys407Gly (chr5-65664576-T-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_024941.4(TRAPPC13):c.1219T>G(p.Cys407Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,612,374 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

TRAPPC13
NM_024941.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.62

Variant links:

Genes affected

TRAPPC13 (HGNC:25828): (trafficking protein particle complex subunit 13) Predicted to be located in cytosol. Predicted to be part of TRAPPIII protein complex. [provided by Alliance of Genome Resources, Apr 2022]

TRAPPC13 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 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
TRAPPC13	NM_024941.4 link	c.1219T>G	p.Cys407Gly	missense_variant	Exon 13 of 13	ENST00000399438.8	NP_079217.2	A5PLN9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRAPPC13	ENST00000399438.8 link	c.1219T>G	p.Cys407Gly	missense_variant	Exon 13 of 13	2	NM_024941.4	ENSP00000382367.3		A5PLN9-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000478

GnomAD3 exomes

AF:

0.0000122

AC:

AN:

246906

Hom.:

AF XY:

0.0000149

AC XY:

AN XY:

133876

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000295

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000178

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000685

AC:

AN:

1460158

Hom.:

Cov.:

AF XY:

0.00000826

AC XY:

AN XY:

726246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000226

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000810

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

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:

0.000478

Bravo

AF:

0.0000151

ExAC

AF:

0.00000828

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 09, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1222T>G (p.C408G) alteration is located in exon 13 (coding exon 13) of the TRAPPC13 gene. This alteration results from a T to G substitution at nucleotide position 1222, causing the cysteine (C) at amino acid position 408 to be replaced by a glycine (G). 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

Uncertain

0.45

BayesDel_addAF

Pathogenic

0.37

BayesDel_noAF

Pathogenic

0.38

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.045

T;.;.;.

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.96

D;D;D;D

M_CAP

Benign

0.013

MetaRNN

Uncertain

0.60

D;D;D;D

MetaSVM

Benign

-0.57

MutationAssessor

Benign

1.8

L;.;.;.

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

-2.2

N;N;N;N

REVEL

Uncertain

0.45

Sift

Uncertain

0.0020

D;D;D;D

Sift4G

Uncertain

0.0080

D;D;D;D

Polyphen

0.80

P;P;P;P

Vest4

0.66

MutPred

0.75

Loss of stability (P = 0.0165);.;.;.;

MVP

0.26

MPC

1.1

ClinPred

0.59

GERP RS

5.9

Varity_R

0.52

gMVP

0.71

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