Variant 10-133279828-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006659.4(TUBGCP2):c.2647C>A(p.Gln883Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000358 in 1,593,702 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

TUBGCP2
NM_006659.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.721

Variant links:

Genes affected

TUBGCP2 (HGNC:18599): (tubulin gamma complex component 2) Predicted to enable gamma-tubulin binding activity. Predicted to contribute to microtubule minus-end binding activity. Involved in brain development and neuron migration. Located in centrosome and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

TUBGCP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.035300642).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
TUBGCP2	NM_006659.4 linkuse as main transcript	c.2647C>A	p.Gln883Lys	missense_variant	18/18	ENST00000252936.8
TUBGCP2	NM_001256617.2 linkuse as main transcript	c.2731C>A	p.Gln911Lys	missense_variant	19/19
TUBGCP2	NM_001256618.2 linkuse as main transcript	c.2257C>A	p.Gln753Lys	missense_variant	17/17
TUBGCP2	NR_046330.2 linkuse as main transcript	n.3367C>A		non_coding_transcript_exon_variant	18/18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TUBGCP2	ENST00000252936.8 linkuse as main transcript	c.2647C>A	p.Gln883Lys	missense_variant	18/18	2	NM_006659.4	P1	Q9BSJ2-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152248

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000186

AC:

AN:

214818

Hom.:

AF XY:

0.0000171

AC XY:

AN XY:

117248

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000642

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000211

Gnomad OTH exome

AF:

0.000185

GnomAD4 exome

AF:

0.0000368

AC:

AN:

1441336

Hom.:

Cov.:

AF XY:

0.0000363

AC XY:

AN XY:

715714

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000260

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000471

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152366

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74512

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ExAC

AF:

0.0000166

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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

Jul 22, 2022

The c.2647C>A (p.Q883K) alteration is located in exon 18 (coding exon 17) of the TUBGCP2 gene. This alteration results from a C to A substitution at nucleotide position 2647, causing the glutamine (Q) at amino acid position 883 to be replaced by a lysine (K). 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

0.081

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.61

Cadd

Benign

Dann

Benign

0.90

DEOGEN2

Benign

0.082

T;.;.;T;T

Eigen

Benign

-0.59

Eigen_PC

Benign

-0.48

FATHMM_MKL

Benign

0.69

M_CAP

Benign

0.0098

MetaRNN

Benign

0.035

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.5

L;.;.;L;.

MutationTaster

Benign

1.0

N;N;N;N;N

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.60

N;N;N;N;N

REVEL

Benign

0.099

Sift

Benign

0.38

T;T;T;T;T

Sift4G

Benign

0.68

T;T;T;T;T

Polyphen

0.016

B;.;.;B;.

Vest4

0.048

MutPred

0.19

Gain of methylation at Q883 (P = 0.0114);.;.;Gain of methylation at Q883 (P = 0.0114);.;

MVP

0.27

MPC

0.41

ClinPred

0.081

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.13

gMVP

0.25

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.

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