chr22-50217792-G-A

Variant summary

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

The NM_020461.4(TUBGCP6):​c.5404C>T​(p.His1802Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,724 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TUBGCP6
NM_020461.4 missense

Scores

6
8
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.81
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]

Genome browser will be placed here

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 UniProt
TUBGCP6NM_020461.4 linkuse as main transcriptc.5404C>T p.His1802Tyr missense_variant 25/25 ENST00000248846.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TUBGCP6ENST00000248846.10 linkuse as main transcriptc.5404C>T p.His1802Tyr missense_variant 25/251 NM_020461.4 P1Q96RT7-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461724
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
727172
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 16, 2022This sequence change replaces histidine, which is basic and polar, with tyrosine, which is neutral and polar, at codon 1802 of the TUBGCP6 protein (p.His1802Tyr). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with TUBGCP6-related conditions. This variant is not present in population databases (gnomAD no frequency). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.73
BayesDel_addAF
Benign
-0.053
T
BayesDel_noAF
Benign
-0.31
CADD
Pathogenic
28
DANN
Uncertain
0.99
DEOGEN2
Benign
0.30
T;.
Eigen
Uncertain
0.36
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D;D
M_CAP
Uncertain
0.12
D
MetaRNN
Uncertain
0.61
D;D
MetaSVM
Benign
-0.70
T
MutationAssessor
Uncertain
2.0
M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Pathogenic
-5.2
D;D
REVEL
Uncertain
0.35
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.55
MutPred
0.40
Loss of helix (P = 0.2022);.;
MVP
0.50
MPC
0.57
ClinPred
0.99
D
GERP RS
4.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.91
gMVP
0.90

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-50656221; API