Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The XM_011517326.3(TRAPPC9):c.92G>C(p.Arg31Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000127 in 1,572,028 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

TRAPPC9
XM_011517326.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.75

Publications

0 publications found

Variant links:

Genes affected

TRAPPC9 (HGNC:30832): (trafficking protein particle complex subunit 9) This gene encodes a protein that likely plays a role in NF-kappa-B signaling. Mutations in this gene have been associated with autosomal-recessive cognitive disability. Alternatively spliced transcript variants have been described.[provided by RefSeq, Feb 2010]

TRAPPC9 Gene-Disease associations (from GenCC):

intellectual disability, autosomal recessive 13
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
intellectual disability-obesity-brain malformations-facial dysmorphism syndrome
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
autosomal recessive non-syndromic intellectual disability
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

TRAPPC9 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.069167584).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000648948.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRAPPC9	NM_031466.8		c.-203G>C		5_prime_UTR	Exon 1 of 23	NP_113654.5

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TRAPPC9	ENST00000648948.2		c.-203G>C		5_prime_UTR	Exon 1 of 23	ENSP00000498020.1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151978

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

7.04e-7

AC:

AN:

1420050

Hom.:

Cov.:

AF XY:

0.00000142

AC XY:

AN XY:

702774

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32460

American (AMR)

AF:

0.0000260

AC:

AN:

38484

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25288

East Asian (EAS)

AF:

0.00

AC:

AN:

37114

South Asian (SAS)

AF:

0.00

AC:

AN:

80924

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49482

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5642

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1091894

Other (OTH)

AF:

0.00

AC:

AN:

58762

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151978

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74232

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41376

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5154

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67966

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

CADD

Benign

2.5

(source)

DANN

Benign

0.97

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.085

LIST_S2

Benign

0.37

M_CAP

Benign

0.0038

MetaRNN

Benign

0.069

MetaSVM

Benign

-1.0

PhyloP100

-1.8

PrimateAI

Uncertain

0.52

PROVEAN

Benign

0.020

REVEL

Benign

0.0030

Sift

Pathogenic

0.0

Sift4G

Benign

0.25

Polyphen

0.15

Vest4

0.20

MutPred

0.23

Gain of loop (P = 3e-04)

MVP

0.10

MPC

0.72

ClinPred

0.19

GERP RS

-2.4

PromoterAI

-0.065

Neutral

(source)

gMVP

0.47

Splicing

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

Publications

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chr8-140458473-C-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over