17-79942205-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_019020.4(TBC1D16):​c.1910C>T​(p.Thr637Met) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,595,576 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

TBC1D16
NM_019020.4 missense, splice_region

Scores

9
6
4
Splicing: ADA: 0.7313
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.21
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 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.869

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBC1D16NM_019020.4 linkuse as main transcriptc.1910C>T p.Thr637Met missense_variant, splice_region_variant 11/12 ENST00000310924.7 NP_061893.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBC1D16ENST00000310924.7 linkuse as main transcriptc.1910C>T p.Thr637Met missense_variant, splice_region_variant 11/121 NM_019020.4 ENSP00000309794 P1Q8TBP0-1
TBC1D16ENST00000340848.11 linkuse as main transcriptc.824C>T p.Thr275Met missense_variant, splice_region_variant 7/81 ENSP00000341517 Q8TBP0-2
TBC1D16ENST00000576768.5 linkuse as main transcriptc.785C>T p.Thr262Met missense_variant, splice_region_variant 7/81 ENSP00000461522 Q8TBP0-4

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152196
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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
GnomAD3 exomes
AF:
0.00000918
AC:
2
AN:
217808
Hom.:
0
AF XY:
0.0000170
AC XY:
2
AN XY:
117762
show subpopulations
Gnomad AFR exome
AF:
0.0000750
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000104
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000139
AC:
20
AN:
1443380
Hom.:
0
Cov.:
33
AF XY:
0.0000126
AC XY:
9
AN XY:
716396
show subpopulations
Gnomad4 AFR exome
AF:
0.0000604
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000393
Gnomad4 NFE exome
AF:
0.0000136
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152196
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000680
Hom.:
0
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000166
AC:
2

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 GeneticsJun 06, 2023The c.1910C>T (p.T637M) 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 1910, causing the threonine (T) at amino acid position 637 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
Pathogenic
0.66
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Uncertain
-0.040
CADD
Pathogenic
31
DANN
Uncertain
1.0
DEOGEN2
Benign
0.25
T;.;.
Eigen
Pathogenic
0.78
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Benign
0.69
D
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Uncertain
0.12
D
MetaRNN
Pathogenic
0.87
D;D;D
MetaSVM
Benign
-0.42
T
MutationAssessor
Pathogenic
3.2
M;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Pathogenic
-5.3
D;.;D
REVEL
Uncertain
0.51
Sift
Pathogenic
0.0
D;.;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.90
MVP
0.84
MPC
0.33
ClinPred
1.0
D
GERP RS
4.7
Varity_R
0.79
gMVP
0.57

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.73
dbscSNV1_RF
Benign
0.59
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: rs368445644; hg19: chr17-77916004; COSMIC: COSV100188520; COSMIC: COSV100188520; API