rs143778652

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BS1_Supporting

The NM_001160372.4(TRAPPC9):​c.1019C>T​(p.Ala340Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000933 in 1,613,966 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00056 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00097 ( 1 hom. )

Consequence

TRAPPC9
NM_001160372.4 missense

Scores

4
9
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:8

Conservation

PhyloP100: 9.70

Publications

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2889855).
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000558 (85/152250) while in subpopulation NFE AF = 0.00106 (72/68018). AF 95% confidence interval is 0.000861. There are 0 homozygotes in GnomAd4. There are 49 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001160372.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TRAPPC9
NM_001160372.4
MANE Select
c.1019C>Tp.Ala340Val
missense
Exon 7 of 23NP_001153844.1Q96Q05-1
TRAPPC9
NM_001374682.1
c.1040C>Tp.Ala347Val
missense
Exon 8 of 24NP_001361611.1
TRAPPC9
NM_031466.8
c.1019C>Tp.Ala340Val
missense
Exon 7 of 23NP_113654.5

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TRAPPC9
ENST00000438773.4
TSL:1 MANE Select
c.1019C>Tp.Ala340Val
missense
Exon 7 of 23ENSP00000405060.3Q96Q05-1
TRAPPC9
ENST00000520857.5
TSL:1
c.548C>Tp.Ala183Val
missense
Exon 5 of 21ENSP00000430116.1H0YBR0
TRAPPC9
ENST00000889106.1
c.1040C>Tp.Ala347Val
missense
Exon 8 of 24ENSP00000559165.1

Frequencies

GnomAD3 genomes
AF:
0.000559
AC:
85
AN:
152132
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000197
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00106
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.000461
AC:
116
AN:
251398
AF XY:
0.000500
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000932
Gnomad OTH exome
AF:
0.000814
GnomAD4 exome
AF:
0.000972
AC:
1421
AN:
1461716
Hom.:
1
Cov.:
33
AF XY:
0.000928
AC XY:
675
AN XY:
727168
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33478
American (AMR)
AF:
0.0000894
AC:
4
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.000252
AC:
10
AN:
39696
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53344
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00122
AC:
1360
AN:
1111934
Other (OTH)
AF:
0.000729
AC:
44
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
73
146
218
291
364
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
54
108
162
216
270
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000558
AC:
85
AN:
152250
Hom.:
0
Cov.:
33
AF XY:
0.000658
AC XY:
49
AN XY:
74430
show subpopulations
African (AFR)
AF:
0.000193
AC:
8
AN:
41544
American (AMR)
AF:
0.000196
AC:
3
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00106
AC:
72
AN:
68018
Other (OTH)
AF:
0.000474
AC:
1
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
5
10
15
20
25
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000907
Hom.:
0
Bravo
AF:
0.000552
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00104
AC:
4
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00116
AC:
10
ExAC
AF:
0.000436
AC:
53
EpiCase
AF:
0.000872
EpiControl
AF:
0.000474

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Intellectual disability, autosomal recessive 13 (2)
-
2
-
not provided (2)
-
1
-
Inborn genetic diseases (1)
-
1
-
Intellectual disability (1)
-
1
-
Intellectual Disability, Recessive (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.54
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Pathogenic
0.42
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.32
T
Eigen
Uncertain
0.66
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.29
T
MetaSVM
Benign
-0.44
T
MutationAssessor
Uncertain
2.4
M
PhyloP100
9.7
PrimateAI
Uncertain
0.73
T
PROVEAN
Uncertain
-3.1
D
REVEL
Uncertain
0.39
Sift
Uncertain
0.0020
D
Sift4G
Benign
0.067
T
Polyphen
1.0
D
Vest4
0.80
MVP
0.38
MPC
1.2
ClinPred
0.28
T
GERP RS
5.0
Varity_R
0.54
gMVP
0.80
Mutation Taster
=44/56
disease causing

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

Other links and lift over

dbSNP: rs143778652; hg19: chr8-141407834; COSMIC: COSV66907418; API