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GeneBe

17-79942127-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_019020.4(TBC1D16):​c.1988C>T​(p.Thr663Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000151 in 1,459,262 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000015 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

TBC1D16
NM_019020.4 missense

Scores

1
8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.13
Variant links:
Genes affected
TBC1D16 (HGNC:28356): (TBC1 domain family member 16) Enables GTPase activator activity. Involved in regulation of receptor recycling. Located in cytosol and early endosome. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TBC1D16NM_019020.4 linkuse as main transcriptc.1988C>T p.Thr663Met missense_variant 11/12 ENST00000310924.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBC1D16ENST00000310924.7 linkuse as main transcriptc.1988C>T p.Thr663Met missense_variant 11/121 NM_019020.4 P1Q8TBP0-1
TBC1D16ENST00000340848.11 linkuse as main transcriptc.902C>T p.Thr301Met missense_variant 7/81 Q8TBP0-2
TBC1D16ENST00000576768.5 linkuse as main transcriptc.863C>T p.Thr288Met missense_variant 7/81 Q8TBP0-4

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
152170
Hom.:
0
Cov.:
32
FAILED QC
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000406
AC:
1
AN:
246368
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
133572
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000548
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000151
AC:
22
AN:
1459262
Hom.:
0
Cov.:
33
AF XY:
0.0000138
AC XY:
10
AN XY:
725734
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000189
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74328
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000283
Hom.:
0
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1

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 GeneticsNov 02, 2023The c.1988C>T (p.T663M) alteration is located in exon 11 (coding exon 10) of the TBC1D16 gene. This alteration results from a C to T substitution at nucleotide position 1988, causing the threonine (T) at amino acid position 663 to be replaced by a methionine (M). 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
0.27
BayesDel_addAF
Benign
-0.031
T
BayesDel_noAF
Benign
-0.28
CADD
Pathogenic
27
DANN
Uncertain
0.99
DEOGEN2
Benign
0.080
T;.;.
Eigen
Uncertain
0.41
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Benign
0.44
N
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Benign
0.017
T
MetaRNN
Uncertain
0.70
D;D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.4
M;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-2.3
N;.;D
REVEL
Benign
0.22
Sift
Uncertain
0.022
D;.;T
Sift4G
Uncertain
0.057
T;T;T
Polyphen
0.91
P;.;.
Vest4
0.82
MVP
0.55
MPC
0.32
ClinPred
0.93
D
GERP RS
4.5
Varity_R
0.12
gMVP
0.54

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: rs377148307; hg19: chr17-77915926; COSMIC: COSV59988847; COSMIC: COSV59988847; API