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GeneBe

rs61731477

Variant summary

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

The NM_001199107.2(TBC1D24):c.1196C>G(p.Thr399Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,613,540 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T399M) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TBC1D24
NM_001199107.2 missense

Scores

2
8
5

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.61
Variant links:
Genes affected
TBC1D24 (HGNC:29203): (TBC1 domain family member 24) This gene encodes a protein with a conserved domain, referred to as the TBC domain, characteristic of proteins which interact with GTPases. TBC domain proteins may serve as GTPase-activating proteins for a particular group of GTPases, the Rab (Ras-related proteins in brain) small GTPases which are involved in the regulation of membrane trafficking. Mutations in this gene are associated with familial infantile myoclonic epilepsy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2011]

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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
TBC1D24NM_001199107.2 linkuse as main transcriptc.1196C>G p.Thr399Arg missense_variant 5/8 ENST00000646147.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBC1D24ENST00000646147.1 linkuse as main transcriptc.1196C>G p.Thr399Arg missense_variant 5/8 NM_001199107.2 A1Q9ULP9-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152118
Hom.:
0
Cov.:
33
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000404
AC:
1
AN:
247302
Hom.:
0
AF XY:
0.00000743
AC XY:
1
AN XY:
134576
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:
0.00000892
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461304
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
726922
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152236
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74422
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000827
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Uncertain
0.070
Cadd
Pathogenic
28
Dann
Uncertain
0.99
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Uncertain
0.94
D
M_CAP
Benign
0.064
D
MetaRNN
Uncertain
0.48
T;T;T;T;T;T
MetaSVM
Benign
-0.81
T
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Uncertain
-3.2
D;.;D;.;.;.
Sift
Benign
0.032
D;.;D;.;.;.
Sift4G
Uncertain
0.060
T;.;T;.;.;T
Polyphen
0.98
D;D;D;.;.;D
Vest4
0.75
MutPred
0.41
.;Loss of ubiquitination at K397 (P = 0.065);Loss of ubiquitination at K397 (P = 0.065);Loss of ubiquitination at K397 (P = 0.065);.;.;
MVP
0.71
MPC
1.0
ClinPred
0.92
D
GERP RS
5.7
Varity_R
0.49
gMVP
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs61731477; hg19: chr16-2549411; API