chr16-2475173-G-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_001199107.2(TBC1D24):​c.-116+3G>T variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000134 in 149,204 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

TBC1D24
NM_001199107.2 splice_donor_region, intron

Scores

2
Splicing: ADA: 0.1604
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.509
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 Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 16-2475173-G-T is Benign according to our data. Variant chr16-2475173-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 516721.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TBC1D24NM_001199107.2 linkuse as main transcriptc.-116+3G>T splice_donor_region_variant, intron_variant ENST00000646147.1
TBC1D24NM_020705.3 linkuse as main transcriptc.-116+3G>T splice_donor_region_variant, intron_variant
TBC1D24XM_017023493.2 linkuse as main transcriptc.-116+3G>T splice_donor_region_variant, intron_variant
TBC1D24XM_017023495.2 linkuse as main transcriptc.-116+3G>T splice_donor_region_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TBC1D24ENST00000646147.1 linkuse as main transcriptc.-116+3G>T splice_donor_region_variant, intron_variant NM_001199107.2 A1Q9ULP9-1
TBC1D24ENST00000567020.6 linkuse as main transcriptc.-116+3G>T splice_donor_region_variant, intron_variant 1 P4Q9ULP9-2
TBC1D24ENST00000569874.2 linkuse as main transcriptc.-116+3G>T splice_donor_region_variant, intron_variant, NMD_transcript_variant 5 Q9ULP9-2
TBC1D24ENST00000630263.2 linkuse as main transcriptc.-142+3G>T splice_donor_region_variant, intron_variant, NMD_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000134
AC:
20
AN:
149204
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000487
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:
0.000269
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
660
Hom.:
0
Cov.:
0
AF XY:
0.00
AC XY:
0
AN XY:
318
Gnomad4 SAS exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000134
AC:
20
AN:
149204
Hom.:
0
Cov.:
33
AF XY:
0.000124
AC XY:
9
AN XY:
72702
show subpopulations
Gnomad4 AFR
AF:
0.0000487
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:
0.000269
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.000128

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxMar 21, 2017This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
CADD
Benign
17
DANN
Benign
0.82
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.16
dbscSNV1_RF
Benign
0.40
SpliceAI score (max)
0.17
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: rs998707315; hg19: chr16-2525174; API