NM_020461.4:c.5285C>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_020461.4(TUBGCP6):c.5285C>T(p.Pro1762Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000213 in 1,611,854 control chromosomes in the GnomAD database, including 3 homozygotes. 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P1762P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00021 ( 3 hom. )

Consequence

TUBGCP6
NM_020461.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 2.26

Publications

6 publications found

Variant links:

Genes affected

TUBGCP6 (HGNC:18127): (tubulin gamma complex component 6) The protein encoded by this gene is part of a large multisubunit complex required for microtubule nucleation at the centrosome. [provided by RefSeq, Jul 2008]

TUBGCP6 Gene-Disease associations (from GenCC):

microcephaly and chorioretinopathy 1
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, ClinGen

TUBGCP6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.003908932).

BP6

Variant 22-50218001-G-A is Benign according to our data. Variant chr22-50218001-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 212516.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000243 (37/152220) while in subpopulation EAS AF = 0.00543 (28/5152). AF 95% confidence interval is 0.00386. There are 0 homozygotes in GnomAd4. There are 22 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TUBGCP6	NM_020461.4 link	c.5285C>T	p.Pro1762Leu	missense_variant	Exon 24 of 25	ENST00000248846.10	NP_065194.3	Q96RT7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TUBGCP6	ENST00000248846.10 link	c.5285C>T	p.Pro1762Leu	missense_variant	Exon 24 of 25	1	NM_020461.4	ENSP00000248846.5		Q96RT7-1

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152102

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:

0.00542

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000562

AC:

138

AN:

245762

AF XY:

0.000544

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000292

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00615

Gnomad FIN exome

AF:

0.000234

Gnomad NFE exome

AF:

0.000163

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000210

AC:

306

AN:

1459634

Hom.:

Cov.:

AF XY:

0.000172

AC XY:

125

AN XY:

726214

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33332

American (AMR)

AF:

0.0000225

AC:

AN:

44424

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26094

East Asian (EAS)

AF:

0.00398

AC:

158

AN:

39694

South Asian (SAS)

AF:

0.000104

AC:

AN:

86178

European-Finnish (FIN)

AF:

0.000114

AC:

AN:

52562

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.0000666

AC:

AN:

1111294

Other (OTH)

AF:

0.000929

AC:

AN:

60298

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.516

Heterozygous variant carriers

103

129

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000243

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.000296

AC XY:

AN XY:

74434

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41558

American (AMR)

AF:

0.00

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00543

AC:

AN:

5152

South Asian (SAS)

AF:

0.000207

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000103

AC:

AN:

67972

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000128

Hom.:

Bravo

AF:

0.000393

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000120

AC:

ExAC

AF:

0.000505

AC:

Asia WGS

AF:

0.00433

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000296

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:2

Dec 23, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

TUBGCP6: BP4 -

not specified

Uncertain:1

Feb 19, 2015

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Microcephaly and chorioretinopathy 1

Benign:1

Sep 13, 2018

Knight Diagnostic Laboratories, Oregon Health and Sciences University

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.084

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.60

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;.

Eigen

Benign

-0.087

Eigen_PC

Benign

-0.069

FATHMM_MKL

Uncertain

0.85

LIST_S2

Benign

0.78

T;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.0039

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

N;.

PhyloP100

2.3

PrimateAI

Benign

0.43

PROVEAN

Uncertain

-4.2

D;D

REVEL

Benign

0.11

Sift

Benign

0.053

T;D

Sift4G

Benign

0.078

T;T

Polyphen

0.99

D;.

Vest4

0.54

MVP

0.46

MPC

0.39

ClinPred

0.13

GERP RS

3.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.085

gMVP

0.41

Mutation Taster

=90/10

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

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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