rs781763439

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_024682.3(TBC1D17):​c.107G>A​(p.Arg36His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000366 in 1,558,498 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

TBC1D17
NM_024682.3 missense

Scores

2
8
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.23

Publications

0 publications found
Variant links:
Genes affected
TBC1D17 (HGNC:25699): (TBC1 domain family member 17) Predicted to enable GTPase activator activity. Involved in retrograde transport, endosome to Golgi. Located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]
AKT1S1 (HGNC:28426): (AKT1 substrate 1) AKT1S1 is a proline-rich substrate of AKT (MIM 164730) that binds 14-3-3 protein (see YWHAH, MIM 113508) when phosphorylated (Kovacina et al., 2003 [PubMed 12524439]).[supplied by OMIM, Mar 2008]
PNKP (HGNC:9154): (polynucleotide kinase 3'-phosphatase) This locus represents a gene involved in DNA repair. In response to ionizing radiation or oxidative damage, the protein encoded by this locus catalyzes 5' phosphorylation and 3' dephosphorylation of nucleic acids. Mutations at this locus have been associated with microcephaly, seizures, and developmental delay.[provided by RefSeq, Sep 2010]
PNKP Gene-Disease associations (from GenCC):
  • ataxia - oculomotor apraxia type 4
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P, Laboratory for Molecular Medicine
  • microcephaly, seizures, and developmental delay
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • Charcot-Marie-Tooth disease type 2B2
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • genetic developmental and epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TBC1D17NM_024682.3 linkc.107G>A p.Arg36His missense_variant Exon 2 of 17 ENST00000221543.10 NP_078958.2 Q9HA65-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TBC1D17ENST00000221543.10 linkc.107G>A p.Arg36His missense_variant Exon 2 of 17 1 NM_024682.3 ENSP00000221543.4 Q9HA65-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152180
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000542
AC:
9
AN:
165962
AF XY:
0.0000456
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000808
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000300
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000377
AC:
53
AN:
1406318
Hom.:
0
Cov.:
31
AF XY:
0.0000302
AC XY:
21
AN XY:
694528
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31756
American (AMR)
AF:
0.00
AC:
0
AN:
36494
Ashkenazi Jewish (ASJ)
AF:
0.000832
AC:
21
AN:
25246
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36064
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79904
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49644
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5702
European-Non Finnish (NFE)
AF:
0.0000268
AC:
29
AN:
1083130
Other (OTH)
AF:
0.0000514
AC:
3
AN:
58378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.436
Heterozygous variant carriers
0
3
5
8
10
13
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:
0.0000263
AC:
4
AN:
152180
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74356
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.000131
AC:
2
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000676
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000258
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Nov 11, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.107G>A (p.R36H) alteration is located in exon 2 (coding exon 2) of the TBC1D17 gene. This alteration results from a G to A substitution at nucleotide position 107, causing the arginine (R) at amino acid position 36 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Uncertain
0.071
D
BayesDel_noAF
Uncertain
-0.050
CADD
Pathogenic
33
DANN
Pathogenic
1.0
Eigen
Pathogenic
0.68
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Uncertain
0.92
D
M_CAP
Benign
0.076
D
MetaRNN
Uncertain
0.72
D
MetaSVM
Benign
-0.84
T
PhyloP100
8.2
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-1.8
N
REVEL
Benign
0.19
Sift
Uncertain
0.0070
D
Sift4G
Uncertain
0.030
D
Vest4
0.77
MutPred
0.64
Gain of methylation at K40 (P = 0.0377);
MVP
0.52
MPC
0.77
ClinPred
0.79
D
GERP RS
5.4
PromoterAI
0.0063
Neutral
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.0
gMVP
0.70
Mutation Taster
=51/49
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: rs781763439; hg19: chr19-50381485; API