rs747990019

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_018317.4(TBC1D19):​c.497G>A​(p.Arg166His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000354 in 1,584,138 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R166C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

TBC1D19
NM_018317.4 missense

Scores

2
6
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.27

Publications

1 publications found
Variant links:
Genes affected
TBC1D19 (HGNC:25624): (TBC1 domain family member 19) Predicted to enable GTPase activator activity. Predicted to be involved in regulation of catalytic activity. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.36704758).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018317.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TBC1D19
NM_018317.4
MANE Select
c.497G>Ap.Arg166His
missense
Exon 8 of 21NP_060787.2Q8N5T2-1
TBC1D19
NM_001292054.2
c.302G>Ap.Arg101His
missense
Exon 5 of 18NP_001278983.1Q8N5T2-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TBC1D19
ENST00000264866.9
TSL:1 MANE Select
c.497G>Ap.Arg166His
missense
Exon 8 of 21ENSP00000264866.4Q8N5T2-1
TBC1D19
ENST00000511789.5
TSL:1
c.302G>Ap.Arg101His
missense
Exon 5 of 18ENSP00000425569.1Q8N5T2-2
TBC1D19
ENST00000502873.5
TSL:1
n.607G>A
non_coding_transcript_exon
Exon 8 of 20

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
151996
Hom.:
0
Cov.:
32
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000521
AC:
13
AN:
249384
AF XY:
0.0000519
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.0000293
Gnomad ASJ exome
AF:
0.000200
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000619
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000370
AC:
53
AN:
1432142
Hom.:
0
Cov.:
29
AF XY:
0.0000352
AC XY:
25
AN XY:
710624
show subpopulations
African (AFR)
AF:
0.000121
AC:
4
AN:
33184
American (AMR)
AF:
0.0000451
AC:
2
AN:
44298
Ashkenazi Jewish (ASJ)
AF:
0.000119
AC:
3
AN:
25264
East Asian (EAS)
AF:
0.0000510
AC:
2
AN:
39204
South Asian (SAS)
AF:
0.0000122
AC:
1
AN:
81852
European-Finnish (FIN)
AF:
0.0000191
AC:
1
AN:
52428
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5650
European-Non Finnish (NFE)
AF:
0.0000339
AC:
37
AN:
1091328
Other (OTH)
AF:
0.0000509
AC:
3
AN:
58934
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
3
6
10
13
16
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:
0.0000197
AC:
3
AN:
151996
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74220
show subpopulations
African (AFR)
AF:
0.0000242
AC:
1
AN:
41402
American (AMR)
AF:
0.00
AC:
0
AN:
15262
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10574
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
67974
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.0000280
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000330
AC:
4

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.26
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.067
T
Eigen
Uncertain
0.66
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Benign
0.047
D
MetaRNN
Benign
0.37
T
MetaSVM
Benign
-0.64
T
MutationAssessor
Uncertain
2.3
M
PhyloP100
7.3
PrimateAI
Uncertain
0.69
T
PROVEAN
Uncertain
-2.5
D
REVEL
Benign
0.21
Sift
Benign
0.13
T
Sift4G
Benign
0.23
T
Polyphen
1.0
D
Vest4
0.72
MutPred
0.35
Loss of catalytic residue at R166 (P = 0.0108)
MVP
0.65
MPC
1.0
ClinPred
0.59
D
GERP RS
5.3
Varity_R
0.24
gMVP
0.54
Mutation Taster
=76/24
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs747990019; hg19: chr4-26661235; COSMIC: COSV53514450; API