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GeneBe

10-133282313-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_006659.4(TUBGCP2):c.2319C>T(p.Gly773=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000573 in 1,605,252 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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: 0.000061 ( 0 hom. )

Consequence

TUBGCP2
NM_006659.4 synonymous

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.75
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP7
Synonymous conserved (PhyloP=-1.75 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TUBGCP2NM_006659.4 linkuse as main transcriptc.2319C>T p.Gly773= synonymous_variant 16/18 ENST00000252936.8
TUBGCP2NM_001256617.2 linkuse as main transcriptc.2403C>T p.Gly801= synonymous_variant 17/19
TUBGCP2NM_001256618.2 linkuse as main transcriptc.1929C>T p.Gly643= synonymous_variant 15/17
TUBGCP2NR_046330.2 linkuse as main transcriptn.3039C>T non_coding_transcript_exon_variant 16/18

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TUBGCP2ENST00000252936.8 linkuse as main transcriptc.2319C>T p.Gly773= synonymous_variant 16/182 NM_006659.4 P1Q9BSJ2-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152156
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000408
AC:
10
AN:
245090
Hom.:
0
AF XY:
0.0000450
AC XY:
6
AN XY:
133434
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000998
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000631
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000606
AC:
88
AN:
1453096
Hom.:
0
Cov.:
31
AF XY:
0.0000582
AC XY:
42
AN XY:
721556
show subpopulations
Gnomad4 AFR exome
AF:
0.0000602
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000128
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000669
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152156
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000416
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

TUBGCP2-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesMar 29, 2023The TUBGCP2 c.2403C>T variant is not predicted to result in an amino acid change (p.=). To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.010% of alleles in individuals of South Asian descent in gnomAD (http://gnomad.broadinstitute.org/variant/10-135095817-G-A). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
Cadd
Benign
0.35
Dann
Benign
0.53
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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.

Other links and lift over

dbSNP: rs367838838; hg19: chr10-135095817; API