chr4-26673803-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_018317.4(TBC1D19):​c.731C>T​(p.Ala244Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000621 in 1,611,420 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 (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

TBC1D19
NM_018317.4 missense

Scores

1
9
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.84
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 made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29950202).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBC1D19NM_018317.4 linkuse as main transcriptc.731C>T p.Ala244Val missense_variant 11/21 ENST00000264866.9 NP_060787.2 Q8N5T2-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBC1D19ENST00000264866.9 linkuse as main transcriptc.731C>T p.Ala244Val missense_variant 11/211 NM_018317.4 ENSP00000264866.4 Q8N5T2-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
151954
Hom.:
0
Cov.:
31
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000160
AC:
4
AN:
250084
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135190
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000266
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.00000480
AC:
7
AN:
1459466
Hom.:
0
Cov.:
29
AF XY:
0.00000413
AC XY:
3
AN XY:
726074
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
151954
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74198
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000762
Hom.:
0
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

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 30, 2022The c.731C>T (p.A244V) alteration is located in exon 11 (coding exon 11) of the TBC1D19 gene. This alteration results from a C to T substitution at nucleotide position 731, causing the alanine (A) at amino acid position 244 to be replaced by a valine (V). 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
0.58
BayesDel_addAF
Benign
-0.042
T
BayesDel_noAF
Benign
-0.23
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.078
.;T;.;.
Eigen
Uncertain
0.39
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.30
T;T;T;T
MetaSVM
Benign
-0.62
T
MutationAssessor
Uncertain
2.5
.;M;.;.
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-2.4
N;N;D;N
REVEL
Benign
0.12
Sift
Benign
0.12
T;D;T;D
Sift4G
Uncertain
0.020
D;D;D;D
Polyphen
0.76
.;P;.;.
Vest4
0.57, 0.56
MVP
0.64
MPC
0.54
ClinPred
0.57
D
GERP RS
5.1
Varity_R
0.39
gMVP
0.58

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: rs753348684; hg19: chr4-26675425; API