rs201374999

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001199107.2(TBC1D24):c.204G>A(p.Thr68Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00107 in 1,613,474 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0011 ( 11 hom. )

Consequence

TBC1D24
NM_001199107.2 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:13

Conservation

PhyloP100: -2.40

Publications

0 publications found

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]

TBC1D24 Gene-Disease associations (from GenCC):

DOORS syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, Orphanet, PanelApp Australia, G2P
familial infantile myoclonic epilepsy
Inheritance: AR Classification: DEFINITIVE, MODERATE, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Orphanet
autosomal dominant nonsyndromic hearing loss 65
Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
autosomal dominant nonsyndromic hearing loss
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
malignant migrating partial seizures of infancy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
focal epilepsy-intellectual disability-cerebro-cerebellar malformation
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
progressive myoclonic epilepsy with dystonia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
nonsyndromic genetic hearing loss
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
autosomal recessive nonsyndromic hearing loss 86
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

TBC1D24 links:

ENSG00000260272 (HGNC:):

ENSG00000260272 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

BP6

Variant 16-2496352-G-A is Benign according to our data. Variant chr16-2496352-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 139393.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000663 (101/152352) while in subpopulation SAS AF = 0.00911 (44/4832). AF 95% confidence interval is 0.00697. There are 0 homozygotes in GnomAd4. There are 54 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 11 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001199107.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TBC1D24	NM_001199107.2	MANE Select	c.204G>A	p.Thr68Thr	synonymous	Exon 2 of 8	NP_001186036.1
	TBC1D24	NM_020705.3		c.204G>A	p.Thr68Thr	synonymous	Exon 2 of 7	NP_065756.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
TBC1D24	ENST00000646147.1	MANE Select	c.204G>A	p.Thr68Thr	synonymous	Exon 2 of 8	ENSP00000494678.1
TBC1D24	ENST00000567020.7	TSL:1	c.204G>A	p.Thr68Thr	synonymous	Exon 2 of 7	ENSP00000454408.1
ENSG00000260272	ENST00000564543.1	TSL:2	c.204G>A	p.Thr68Thr	synonymous	Exon 1 of 3	ENSP00000455547.1

Frequencies

GnomAD3 genomes

AF:

0.000663

AC:

101

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00910

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000720

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.00143

AC:

356

AN:

248830

AF XY:

0.00172

show subpopulations

Gnomad AFR exome

AF:

0.000130

Gnomad AMR exome

AF:

0.000261

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00101

Gnomad OTH exome

AF:

0.000331

GnomAD4 exome

AF:

0.00111

AC:

1619

AN:

1461122

Hom.:

Cov.:

AF XY:

0.00126

AC XY:

914

AN XY:

726902

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33476

American (AMR)

AF:

0.000201

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00725

AC:

625

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52698

Middle Eastern (MID)

AF:

0.000867

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000834

AC:

927

AN:

1111990

Other (OTH)

AF:

0.000828

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

128

255

383

510

638

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

120

160

200

<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:

0.000663

AC:

101

AN:

152352

Hom.:

Cov.:

AF XY:

0.000725

AC XY:

AN XY:

74508

show subpopulations

African (AFR)

AF:

0.0000962

AC:

AN:

41582

American (AMR)

AF:

0.000196

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00911

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000720

AC:

AN:

68022

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000476

Hom.:

Bravo

AF:

0.000434

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.000818

EpiControl

AF:

0.00119

ClinVar

ClinVar submissions as Germline

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (5)

not provided (4)

Developmental and epileptic encephalopathy, 1;C3892048:Autosomal dominant nonsyndromic hearing loss 65;CN236805:Caused by mutation in the TBC1 domain family, member 24 (1)

Familial infantile myoclonic epilepsy (1)

Inborn genetic diseases (1)

TBC1D24-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.11

(source)

DANN

Benign

0.87

PhyloP100

-2.4

PromoterAI

-0.076

Neutral

(source)

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over