rs751375244

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_014408.5(TRAPPC3):c.184C>T(p.Arg62Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000167 in 1,613,966 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

TRAPPC3
NM_014408.5 missense

Scores

Clinical Significance

Likely pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 5.74

Variant links:

Genes affected

TRAPPC3 (HGNC:19942): (trafficking protein particle complex subunit 3) This gene encodes a component of the trafficking protein particle complex, which tethers transport vesicles to the cis-Golgi membrane. The encoded protein participates in the regulation of transport from the endoplasmic reticulum to the Golgi apparatus. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2012]

TRAPPC3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.879

PP5

Variant 1-36139776-G-A is Pathogenic according to our data. Variant chr1-36139776-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 266073.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRAPPC3	NM_014408.5 link	c.184C>T	p.Arg62Trp	missense_variant	Exon 3 of 5	ENST00000373166.8	NP_055223.1	O43617-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRAPPC3	ENST00000373166.8 link	c.184C>T	p.Arg62Trp	missense_variant	Exon 3 of 5	1	NM_014408.5	ENSP00000362261.3		O43617-1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152078

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:

0.000283

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251448

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135920

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

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:

0.00

GnomAD4 exome

AF:

0.0000150

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.000168

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152078

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

74256

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:

0.000283

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000540

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Bardet-Biedl syndrome

Pathogenic:1

Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: research

Autozygosity mapping, the only segregating variant in the exome. TRAPPC3 (part of transport protein particle (TRAPP) II complex, and a novel candidate gene for BBS in this study) has been shown to be required for ciliogenesis in RPE cells (Schou et al. 2014). TRAP II complex has also been shown to bind Rabin8 and target it to the centrosome as a pre-requisite step for cilioagenesis (Westlake et al. 2011). Rabin8 is known to associate with BBSome and its knockdown in zebrafish recapitulates the BBS phenotypic readouts in this model system (Nachury et al. 2007; Westlake et al. 2011). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.90

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Pathogenic

0.20

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.34

.;.;T;.;.;T

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;D;D;.;.;D

M_CAP

Benign

0.075

MetaRNN

Pathogenic

0.88

D;D;D;D;D;D

MetaSVM

Benign

-0.47

MutationAssessor

Pathogenic

3.2

.;.;M;.;.;.

PrimateAI

Pathogenic

0.80

PROVEAN

Pathogenic

-6.1

.;.;D;D;D;D

REVEL

Uncertain

0.52

Sift

Pathogenic

0.0

.;.;D;D;D;D

Sift4G

Pathogenic

0.0

D;.;D;.;.;D

Polyphen

0.96

.;.;D;.;.;.

Vest4

0.82

MutPred

0.78

.;.;Gain of catalytic residue at L60 (P = 0.0043);.;.;Gain of catalytic residue at L60 (P = 0.0043);

MVP

0.54

MPC

0.93

ClinPred

0.95

GERP RS

3.8

Varity_R

0.87

gMVP

0.84

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.15

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