15-78003382-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_144572.2(TBC1D2B):​c.2497C>T​(p.Leu833Leu) variant causes a synonymous change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,592 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: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TBC1D2B
NM_144572.2 synonymous

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.02
Variant links:
Genes affected
TBC1D2B (HGNC:29183): (TBC1 domain family member 2B) Predicted to enable GTPase activator activity. Predicted to be involved in activation of GTPase activity and intracellular protein transport. Located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.28).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBC1D2BNM_144572.2 linkuse as main transcriptc.2497C>T p.Leu833Leu synonymous_variant 11/13 ENST00000300584.8 NP_653173.1 Q9UPU7-1B2RTQ2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBC1D2BENST00000300584.8 linkuse as main transcriptc.2497C>T p.Leu833Leu synonymous_variant 11/135 NM_144572.2 ENSP00000300584.3 Q9UPU7-1
TBC1D2BENST00000409931.7 linkuse as main transcriptc.2497C>T p.Leu833Leu synonymous_variant 11/131 ENSP00000387165.3 Q9UPU7-2
TBC1D2BENST00000472786.1 linkuse as main transcriptn.1463C>T non_coding_transcript_exon_variant 4/42
TBC1D2BENST00000497942.1 linkuse as main transcriptn.198C>T non_coding_transcript_exon_variant 1/23

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461592
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727070
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000936
Hom.:
0
Bravo
AF:
0.00000378
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2024TBC1D2B: PM2:Supporting, BP4 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.28
CADD
Benign
9.2
DANN
Benign
0.77

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: rs2071969495; hg19: chr15-78295724; API