Variant 21-29067011-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The ENST00000286788.9(CCT8):c.442T>C(p.Cys148Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000119 in 1,613,636 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

CCT8
ENST00000286788.9 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.74

Variant links:

Genes affected

CCT8 (HGNC:1623): (chaperonin containing TCP1 subunit 8) This gene encodes the theta subunit of the CCT chaperonin, which is abundant in the eukaryotic cytosol and may be involved in the transport and assembly of newly synthesized proteins. Alternative splicing results in multiple transcript variants of this gene. A pseudogene related to this gene is located on chromosome 1. [provided by RefSeq, Sep 2013]

CCT8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.30703872).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CCT8	NM_006585.4 linkuse as main transcript	c.442T>C	p.Cys148Arg	missense_variant	5/15	ENST00000286788.9	NP_006576.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CCT8	ENST00000286788.9 linkuse as main transcript	c.442T>C	p.Cys148Arg	missense_variant	5/15	1	NM_006585.4	ENSP00000286788	P1	P50990-1

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00519

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000191

AC:

AN:

250912

Hom.:

AF XY:

0.000184

AC XY:

AN XY:

135720

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00447

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000118

AC:

173

AN:

1461404

Hom.:

Cov.:

AF XY:

0.000124

AC XY:

AN XY:

727026

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00509

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000189

Gnomad4 OTH exome

AF:

0.000315

GnomAD4 genome

AF:

0.000125

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00519

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000540

Hom.:

Bravo

AF:

0.000136

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000189

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

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

Dec 27, 2022

The c.442T>C (p.C148R) alteration is located in exon 5 (coding exon 5) of the CCT8 gene. This alteration results from a T to C substitution at nucleotide position 442, causing the cysteine (C) at amino acid position 148 to be replaced by an arginine (R). 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

Uncertain

0.54

BayesDel_addAF

Uncertain

0.084

BayesDel_noAF

Uncertain

-0.050

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.62

.;D;.

Eigen

Pathogenic

0.77

Eigen_PC

Pathogenic

0.78

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.72

T;T;T

M_CAP

Benign

0.083

MetaRNN

Benign

0.31

T;T;T

MetaSVM

Uncertain

0.17

MutationAssessor

Uncertain

2.3

.;M;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.75

PROVEAN

Pathogenic

-7.9

D;D;.

REVEL

Uncertain

0.61

Sift

Benign

0.046

D;D;.

Sift4G

Benign

0.12

T;T;T

Polyphen

1.0

.;D;.

Vest4

0.93

MVP

0.35

MPC

0.91

ClinPred

0.35

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.91

gMVP

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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