rs368311025

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_016030.6(TRAPPC12):​c.58C>A​(p.Gln20Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000846 in 1,559,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00049 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000041 ( 0 hom. )

Consequence

TRAPPC12
NM_016030.6 missense

Scores

18

Clinical Significance

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

Conservation

PhyloP100: 1.83

Publications

1 publications found
Variant links:
Genes affected
TRAPPC12 (HGNC:24284): (trafficking protein particle complex subunit 12) Involved in several processes, including endoplasmic reticulum to Golgi vesicle-mediated transport; positive regulation of protein localization to kinetochore; and regulation of kinetochore assembly. Located in Golgi apparatus; kinetochore; and nucleoplasm. Part of TRAPP complex. Colocalizes with endoplasmic reticulum-Golgi intermediate compartment and perinuclear region of cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]
TRAPPC12 Gene-Disease associations (from GenCC):
  • early-onset progressive encephalopathy-hearing loss-pons hypoplasia-brain atrophy syndrome
    Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0060194135).
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000486 (74/152320) while in subpopulation AFR AF = 0.00173 (72/41570). AF 95% confidence interval is 0.00141. There are 0 homozygotes in GnomAd4. There are 32 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_016030.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TRAPPC12
NM_016030.6
MANE Select
c.58C>Ap.Gln20Lys
missense
Exon 2 of 12NP_057114.5
TRAPPC12
NM_001321102.2
c.58C>Ap.Gln20Lys
missense
Exon 2 of 12NP_001308031.1Q8WVT3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TRAPPC12
ENST00000324266.10
TSL:1 MANE Select
c.58C>Ap.Gln20Lys
missense
Exon 2 of 12ENSP00000324318.5Q8WVT3
TRAPPC12
ENST00000858088.1
c.58C>Ap.Gln20Lys
missense
Exon 2 of 13ENSP00000528147.1
TRAPPC12
ENST00000964175.1
c.58C>Ap.Gln20Lys
missense
Exon 2 of 13ENSP00000634234.1

Frequencies

GnomAD3 genomes
AF:
0.000460
AC:
70
AN:
152204
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00164
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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
GnomAD2 exomes
AF:
0.0000898
AC:
15
AN:
166996
AF XY:
0.000101
show subpopulations
Gnomad AFR exome
AF:
0.00145
Gnomad AMR exome
AF:
0.0000387
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000149
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000412
AC:
58
AN:
1407650
Hom.:
0
Cov.:
31
AF XY:
0.0000417
AC XY:
29
AN XY:
695428
show subpopulations
African (AFR)
AF:
0.00129
AC:
41
AN:
31830
American (AMR)
AF:
0.0000272
AC:
1
AN:
36810
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25238
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35988
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79972
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49504
Middle Eastern (MID)
AF:
0.000350
AC:
2
AN:
5710
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1084210
Other (OTH)
AF:
0.000240
AC:
14
AN:
58388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
4
8
11
15
19
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.000486
AC:
74
AN:
152320
Hom.:
0
Cov.:
33
AF XY:
0.000430
AC XY:
32
AN XY:
74480
show subpopulations
African (AFR)
AF:
0.00173
AC:
72
AN:
41570
American (AMR)
AF:
0.000131
AC:
2
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
3
7
10
14
17
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:
0.000228
Hom.:
0
Bravo
AF:
0.000499
ESP6500AA
AF:
0.000230
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000768
AC:
9
Asia WGS
AF:
0.00144
AC:
5
AN:
3478

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
5.2
DANN
Benign
0.72
DEOGEN2
Benign
0.0089
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.11
N
LIST_S2
Benign
0.35
T
M_CAP
Benign
0.063
D
MetaRNN
Benign
0.0060
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.46
N
PhyloP100
1.8
PrimateAI
Benign
0.45
T
PROVEAN
Benign
-0.89
N
REVEL
Benign
0.048
Sift
Benign
0.25
T
Sift4G
Benign
0.89
T
Polyphen
0.0
B
Vest4
0.080
MVP
0.18
MPC
0.31
ClinPred
0.0038
T
GERP RS
1.7
Varity_R
0.10
gMVP
0.081
Mutation Taster
=99/1
polymorphism

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: rs368311025; hg19: chr2-3391452; COSMIC: COSV107405046; COSMIC: COSV107405046; API