Variant 17-15738320-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001388465.1(TBC1D26):c.320G>A(p.Arg107Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,562 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TBC1D26
NM_001388465.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.48

Variant links:

Genes affected

TBC1D26 (HGNC:28745): (TBC1 domain family member 26) Predicted to enable GTPase activator activity. Predicted to be involved in activation of GTPase activity and intracellular protein transport. [provided by Alliance of Genome Resources, Apr 2022]

TBC1D26 links:

ZNF286A-TBC1D26 (HGNC:):

ZNF286A-TBC1D26 links:

TBC1D26-AS1 (HGNC:41211): (TBC1D26 antisense RNA 1)

TBC1D26-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.796

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
TBC1D26	NM_001388465.1 linkuse as main transcript	c.320G>A	p.Arg107Gln	missense_variant	7/15	ENST00000437605.4	NP_001375394.1
ZNF286A-TBC1D26	NR_171000.1 linkuse as main transcript	n.2509G>A		non_coding_transcript_exon_variant	14/23
TBC1D26-AS1	XR_001753084.3 linkuse as main transcript	n.150-1771C>T		intron_variant, non_coding_transcript_variant
TBC1D26	NM_178571.4 linkuse as main transcript	c.320G>A	p.Arg107Gln	missense_variant	7/15		NP_848666.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TBC1D26	ENST00000437605.4 linkuse as main transcript	c.320G>A	p.Arg107Gln	missense_variant	7/15	5	NM_001388465.1	ENSP00000410111	P1
TBC1D26-AS1	ENST00000434017.1 linkuse as main transcript	n.190-1771C>T		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152032

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249378

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135302

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461530

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727068

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152032

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74254

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 26, 2022

The c.320G>A (p.R107Q) alteration is located in exon 7 (coding exon 5) of the TBC1D26 gene. This alteration results from a G to A substitution at nucleotide position 320, causing the arginine (R) at amino acid position 107 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

.;T;.

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.46

FATHMM_MKL

Benign

0.22

LIST_S2

Benign

0.73

T;T;.

M_CAP

Benign

0.0051

MetaRNN

Pathogenic

0.80

D;D;D

MetaSVM

Benign

-0.85

MutationAssessor

Pathogenic

4.1

H;H;H

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.44

PROVEAN

Uncertain

-2.7

.;D;.

REVEL

Benign

0.24

Sift

Benign

0.090

.;T;.

Sift4G

Benign

0.11

T;T;T

Polyphen

0.45

P;P;P

Vest4

0.55

MutPred

0.91

Loss of methylation at R107 (P = 0.0244);Loss of methylation at R107 (P = 0.0244);Loss of methylation at R107 (P = 0.0244);

MVP

0.28

MPC

0.81

ClinPred

0.85

GERP RS

1.4

Varity_R

0.26

gMVP

0.37

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over