19-49882344-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The ENST00000221543.10(TBC1D17):​c.742G>A​(p.Asp248Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000379 in 1,610,264 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000039 ( 3 hom. )

Consequence

TBC1D17
ENST00000221543.10 missense

Scores

3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.30
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.11186403).
BS2
High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBC1D17NM_024682.3 linkuse as main transcriptc.742G>A p.Asp248Asn missense_variant 7/17 ENST00000221543.10 NP_078958.2
LOC124904743XR_007067293.1 linkuse as main transcriptn.1920-170C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBC1D17ENST00000221543.10 linkuse as main transcriptc.742G>A p.Asp248Asn missense_variant 7/171 NM_024682.3 ENSP00000221543 P1Q9HA65-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152172
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000686
AC:
17
AN:
247976
Hom.:
1
AF XY:
0.0000892
AC XY:
12
AN XY:
134456
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000294
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000529
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000391
AC:
57
AN:
1458092
Hom.:
3
Cov.:
32
AF XY:
0.0000524
AC XY:
38
AN XY:
725534
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000394
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152172
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000849
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000824
AC:
10
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 05, 2022The c.742G>A (p.D248N) alteration is located in exon 7 (coding exon 7) of the TBC1D17 gene. This alteration results from a G to A substitution at nucleotide position 742, causing the aspartic acid (D) at amino acid position 248 to be replaced by an asparagine (N). 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
0.083
BayesDel_addAF
Benign
-0.56
T
BayesDel_noAF
Benign
-0.74
CADD
Benign
19
DANN
Uncertain
0.99
Eigen
Benign
-0.43
Eigen_PC
Benign
-0.29
FATHMM_MKL
Uncertain
0.87
D
M_CAP
Benign
0.0058
T
MetaRNN
Benign
0.11
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.98
N;N
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.87
N;N
REVEL
Benign
0.056
Sift
Benign
0.14
T;T
Sift4G
Benign
0.33
T;T
Vest4
0.30
MutPred
0.21
Gain of glycosylation at P250 (P = 0.0952);.;
MVP
0.34
MPC
0.16
ClinPred
0.049
T
GERP RS
2.5
gMVP
0.33

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs748879279; hg19: chr19-50385601; API