10-133281283-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_006659.4(TUBGCP2):c.2563G>A(p.Val855Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000161 in 1,611,084 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

TUBGCP2
NM_006659.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.68

Publications

3 publications found

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 Gene-Disease associations (from GenCC):

Norman-Roberts syndrome
Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia
pachygyria, microcephaly, developmental delay, and dysmorphic facies, with or without seizures
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

TUBGCP2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.03055358).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TUBGCP2	NM_006659.4 link	c.2563G>A	p.Val855Ile	missense_variant	Exon 17 of 18	ENST00000252936.8	NP_006650.1	Q9BSJ2-1Q53EQ3
TUBGCP2	NM_001256617.2 link	c.2647G>A	p.Val883Ile	missense_variant	Exon 18 of 19		NP_001243546.1	Q9BSJ2-4
TUBGCP2	NM_001256618.2 link	c.2173G>A	p.Val725Ile	missense_variant	Exon 16 of 17		NP_001243547.1	Q9BSJ2-3
TUBGCP2	NR_046330.2 link	n.3283G>A		non_coding_transcript_exon_variant	Exon 17 of 18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TUBGCP2	ENST00000252936.8 link	c.2563G>A	p.Val855Ile	missense_variant	Exon 17 of 18	2	NM_006659.4	ENSP00000252936.3		Q9BSJ2-1

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152160

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:

0.000577

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000682

AC:

AN:

249272

AF XY:

0.0000593

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000817

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000887

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1458806

Hom.:

Cov.:

AF XY:

0.00000827

AC XY:

AN XY:

725716

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33432

American (AMR)

AF:

0.00

AC:

AN:

44710

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.000277

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86188

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52016

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4626

European-Non Finnish (NFE)

AF:

0.00000720

AC:

AN:

1111802

Other (OTH)

AF:

0.0000166

AC:

AN:

60212

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152278

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74464

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41560

American (AMR)

AF:

0.00

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000579

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68010

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000659

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

Jan 04, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2563G>A (p.V855I) alteration is located in exon 17 (coding exon 16) of the TUBGCP2 gene. This alteration results from a G to A substitution at nucleotide position 2563, causing the valine (V) at amino acid position 855 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

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.50

CADD

Benign

(source)

DANN

Benign

0.81

DEOGEN2

Benign

0.12

T;.;.;T;T

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.045

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.86

.;D;D;D;D

M_CAP

Benign

0.0042

MetaRNN

Benign

0.031

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

-0.21

N;.;.;N;.

PhyloP100

5.7

PrimateAI

Uncertain

0.60

PROVEAN

Benign

0.51

N;N;N;N;N

REVEL

Benign

0.057

Sift

Benign

0.74

T;T;T;T;T

Sift4G

Benign

1.0

T;T;T;T;T

Polyphen

0.0010

B;.;.;B;.

Vest4

0.14

MutPred

0.55

Loss of catalytic residue at V855 (P = 0.0608);.;.;Loss of catalytic residue at V855 (P = 0.0608);.;

MVP

0.14

MPC

0.23

ClinPred

0.081

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.036

gMVP

0.12

Mutation Taster

=94/6

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

10-133281283-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over