Variant 12-64838704-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_015279.2(TBC1D30):c.785C>T(p.Thr262Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000026 in 1,536,554 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

TBC1D30
NM_015279.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.29

Variant links:

Genes affected

TBC1D30 (HGNC:29164): (TBC1 domain family member 30) Enables GTPase activator activity and small GTPase binding activity. Involved in negative regulation of cilium assembly and positive regulation of GTPase activity. Located in ciliary basal body; cytosol; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

TBC1D30 links:

ENSG00000288591 (HGNC:):

ENSG00000288591 links:

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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	Protein	UniProt
TBC1D30	NM_015279.2 linkuse as main transcript	c.785C>T	p.Thr262Ile	missense_variant	7/12	ENST00000539867.6	NP_056094.1	Q9Y2I9-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TBC1D30	ENST00000539867.6 linkuse as main transcript	c.785C>T	p.Thr262Ile	missense_variant	7/12	1	NM_015279.2	ENSP00000440207.1		Q9Y2I9-2
ENSG00000288591	ENST00000674281.1 linkuse as main transcript	n.443C>T		non_coding_transcript_exon_variant	9/17			ENSP00000501395.1		F8VZ81

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

7.22e-7

AC:

AN:

1384250

Hom.:

Cov.:

AF XY:

0.00000146

AC XY:

AN XY:

683020

show subpopulations

Gnomad4 AFR exome

AF:

0.0000316

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74472

show subpopulations

Gnomad4 AFR

AF:

0.0000722

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000151

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

Feb 10, 2022

The c.785C>T (p.T262I) alteration is located in exon 7 (coding exon 7) of the TBC1D30 gene. This alteration results from a C to T substitution at nucleotide position 785, causing the threonine (T) at amino acid position 262 to be replaced by an isoleucine (I). 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

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Uncertain

0.060

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.069

T;.

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

D;D

M_CAP

Benign

0.029

MetaRNN

Uncertain

0.70

D;D

MetaSVM

Benign

-1.1

PrimateAI

Pathogenic

0.82

PROVEAN

Pathogenic

-4.6

D;D

REVEL

Uncertain

0.36

Sift

Benign

0.13

T;T

Sift4G

Benign

0.14

T;T

Vest4

0.83

MVP

0.39

ClinPred

0.99

GERP RS

6.0

gMVP

0.83

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.

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