rs760635855

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001396959.1(TBC1D1):​c.143G>A​(p.Arg48Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000167 in 1,613,928 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 (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

TBC1D1
NM_001396959.1 missense

Scores

1
7
11

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 5.33

Publications

0 publications found
Variant links:
Genes affected
TBC1D1 (HGNC:11578): (TBC1 domain family member 1) TBC1D1 is the founding member of a family of proteins sharing a 180- to 200-amino acid TBC domain presumed to have a role in regulating cell growth and differentiation. These proteins share significant homology with TRE2 (USP6; MIM 604334), yeast Bub2, and CDC16 (MIM 603461) (White et al., 2000 [PubMed 10965142]).[supplied by OMIM, Mar 2008]
TBC1D1 Gene-Disease associations (from GenCC):
  • congenital anomaly of kidney and urinary tract
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.19301152).
BS2
High AC in GnomAdExome4 at 26 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TBC1D1NM_001396959.1 linkc.143G>A p.Arg48Gln missense_variant Exon 2 of 22 ENST00000698857.1 NP_001383888.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TBC1D1ENST00000698857.1 linkc.143G>A p.Arg48Gln missense_variant Exon 2 of 22 NM_001396959.1 ENSP00000513987.1 A0A8V8TNS9
TBC1D1ENST00000261439.9 linkc.143G>A p.Arg48Gln missense_variant Exon 2 of 20 1 ENSP00000261439.4 Q86TI0-1
TBC1D1ENST00000508802.5 linkc.143G>A p.Arg48Gln missense_variant Exon 2 of 21 2 ENSP00000423651.1 Q86TI0-2
TBC1D1ENST00000402522.1 linkc.143G>A p.Arg48Gln missense_variant Exon 2 of 3 2 ENSP00000383994.1 B5MCJ2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152036
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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
GnomAD2 exomes
AF:
0.0000358
AC:
9
AN:
251450
AF XY:
0.0000368
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1461892
Hom.:
0
Cov.:
36
AF XY:
0.0000165
AC XY:
12
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.000128
AC:
11
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1112012
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
2
4
7
9
11
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:
0.00000658
AC:
1
AN:
152036
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74250
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000242
AC:
1
AN:
41372
American (AMR)
AF:
0.00
AC:
0
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68008
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000434
Hom.:
0
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

TBC1D1-related disorder Uncertain:1
Feb 22, 2024
PreventionGenetics, part of Exact Sciences
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

The TBC1D1 c.143G>A variant is predicted to result in the amino acid substitution p.Arg48Gln. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.026% of alleles in individuals of South Asian descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.097
T
BayesDel_noAF
Uncertain
-0.080
CADD
Uncertain
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.12
.;T;T
Eigen
Uncertain
0.20
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Benign
0.030
D
MetaRNN
Benign
0.19
T;T;T
MetaSVM
Benign
-0.73
T
MutationAssessor
Uncertain
2.3
M;M;.
PhyloP100
5.3
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-1.3
N;N;D
REVEL
Benign
0.20
Sift
Uncertain
0.023
D;D;D
Sift4G
Benign
0.064
T;T;T
Polyphen
0.37
.;B;.
Vest4
0.20
MutPred
0.46
Gain of glycosylation at S51 (P = 0.0118);Gain of glycosylation at S51 (P = 0.0118);Gain of glycosylation at S51 (P = 0.0118);
MVP
0.71
MPC
0.62
ClinPred
0.20
T
GERP RS
6.1
Varity_R
0.075
gMVP
0.38
Mutation Taster
=79/21
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: rs760635855; hg19: chr4-37903859; COSMIC: COSV54713743; API