chr4-183692981-C-G

Variant names:

Variant summary

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

The NM_021942.6(TRAPPC11):c.2071C>G(p.Leu691Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,458,920 control chromosomes in the GnomAD database, with no homozygous occurrence. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TRAPPC11
NM_021942.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.33

Publications

0 publications found

Variant links:

Genes affected

TRAPPC11 (HGNC:25751): (trafficking protein particle complex subunit 11) The protein encoded by this gene is a subunit of the TRAPP (transport protein particle) tethering complex, which functions in intracellular vesicle trafficking. This subunit is involved in early stage endoplasmic reticulum-to-Golgi vesicle transport. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jan 2013]

TRAPPC11 Gene-Disease associations (from GenCC):

autosomal recessive limb-girdle muscular dystrophy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
autosomal recessive limb-girdle muscular dystrophy type R18
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Myriad Women’s Health, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, G2P, Orphanet
intellectual disability-hyperkinetic movement-truncal ataxia syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
triple-A syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

TRAPPC11 links:

Genome browser will be placed here

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
TRAPPC11	NM_021942.6 link	c.2071C>G	p.Leu691Val	missense_variant	Exon 20 of 30	ENST00000334690.11	NP_068761.4	Q7Z392-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRAPPC11	ENST00000334690.11 link	c.2071C>G	p.Leu691Val	missense_variant	Exon 20 of 30	1	NM_021942.6	ENSP00000335371.6		Q7Z392-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000120

AC:

AN:

249042

AF XY:

0.00000743

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000266

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000343

AC:

AN:

1458920

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

725696

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33330

American (AMR)

AF:

0.00

AC:

AN:

44356

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26026

East Asian (EAS)

AF:

0.00

AC:

AN:

39578

South Asian (SAS)

AF:

0.00

AC:

AN:

85792

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53388

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5744

European-Non Finnish (NFE)

AF:

0.00000450

AC:

AN:

1110466

Other (OTH)

AF:

0.00

AC:

AN:

60240

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000508

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000595

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Autosomal recessive limb-girdle muscular dystrophy type R18

Uncertain:2

Mar 11, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 691 of the TRAPPC11 protein (p.Leu691Val). This variant is present in population databases (rs777107611, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with TRAPPC11-related conditions. ClinVar contains an entry for this variant (Variation ID: 573560). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt TRAPPC11 protein function with a positive predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Dec 02, 2021

Revvity Omics, Revvity

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.034

BayesDel_noAF

Benign

-0.22

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.038

T;.;T

Eigen

Benign

0.019

Eigen_PC

Benign

0.049

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.88

D;D;D

M_CAP

Benign

0.013

MetaRNN

Uncertain

0.48

T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Uncertain

2.2

M;M;.

PhyloP100

1.3

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-1.9

N;N;N

REVEL

Benign

0.24

Sift

Uncertain

0.0080

D;D;D

Sift4G

Uncertain

0.018

D;D;D

Polyphen

1.0

D;P;P

Vest4

0.65

MutPred

0.61

Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);.;

MVP

0.41

MPC

0.52

ClinPred

0.73

GERP RS

3.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.075

gMVP

0.57

Mutation Taster

=74/26

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over