chr8-140287720-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_ModerateBP6BP7BS1BS2

The NM_001160372.4(TRAPPC9):​c.1869C>T​(p.Ser623Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0134 in 1,614,128 control chromosomes in the GnomAD database, including 190 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0096 ( 11 hom., cov: 32)
Exomes 𝑓: 0.014 ( 179 hom. )

Consequence

TRAPPC9
NM_001160372.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: -0.873
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
Variant 8-140287720-G-A is Benign according to our data. Variant chr8-140287720-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 130624.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1, Benign=3}.
BP7
Synonymous conserved (PhyloP=-0.873 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0096 (1461/152266) while in subpopulation NFE AF= 0.0159 (1082/68016). AF 95% confidence interval is 0.0151. There are 11 homozygotes in gnomad4. There are 674 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 11 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TRAPPC9NM_001160372.4 linkuse as main transcriptc.1869C>T p.Ser623Ser synonymous_variant 13/23 ENST00000438773.4 NP_001153844.1 Q96Q05-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TRAPPC9ENST00000438773.4 linkuse as main transcriptc.1869C>T p.Ser623Ser synonymous_variant 13/231 NM_001160372.4 ENSP00000405060.3 Q96Q05-1

Frequencies

GnomAD3 genomes
AF:
0.00961
AC:
1462
AN:
152148
Hom.:
11
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00311
Gnomad AMI
AF:
0.0197
Gnomad AMR
AF:
0.00989
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00565
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0159
Gnomad OTH
AF:
0.00818
GnomAD3 exomes
AF:
0.00841
AC:
2114
AN:
251304
Hom.:
19
AF XY:
0.00797
AC XY:
1083
AN XY:
135866
show subpopulations
Gnomad AFR exome
AF:
0.00308
Gnomad AMR exome
AF:
0.00419
Gnomad ASJ exome
AF:
0.000992
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000425
Gnomad FIN exome
AF:
0.00602
Gnomad NFE exome
AF:
0.0151
Gnomad OTH exome
AF:
0.00848
GnomAD4 exome
AF:
0.0138
AC:
20214
AN:
1461862
Hom.:
179
Cov.:
32
AF XY:
0.0133
AC XY:
9669
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.00305
Gnomad4 AMR exome
AF:
0.00438
Gnomad4 ASJ exome
AF:
0.000880
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.000417
Gnomad4 FIN exome
AF:
0.00669
Gnomad4 NFE exome
AF:
0.0169
Gnomad4 OTH exome
AF:
0.0120
GnomAD4 genome
AF:
0.00960
AC:
1461
AN:
152266
Hom.:
11
Cov.:
32
AF XY:
0.00905
AC XY:
674
AN XY:
74452
show subpopulations
Gnomad4 AFR
AF:
0.00308
Gnomad4 AMR
AF:
0.00987
Gnomad4 ASJ
AF:
0.000576
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00565
Gnomad4 NFE
AF:
0.0159
Gnomad4 OTH
AF:
0.00810
Alfa
AF:
0.0124
Hom.:
12
Bravo
AF:
0.0100
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.0123
EpiControl
AF:
0.0127

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingGeneDxJan 04, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
Intellectual Disability, Recessive Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJul 08, 2013- -
Inborn genetic diseases Benign:1
Benign, criteria provided, single submitterclinical testingAmbry GeneticsMay 03, 2016This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
TRAPPC9-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJun 05, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
CADD
Benign
1.1
DANN
Benign
0.73
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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.

Other links and lift over

dbSNP: rs117685875; hg19: chr8-141297819; API