21-29061555-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_006585.4(CCT8):​c.1225G>A​(p.Val409Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00396 in 1,613,258 control chromosomes in the GnomAD database, including 207 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.021 ( 115 hom., cov: 32)
Exomes 𝑓: 0.0022 ( 92 hom. )

Consequence

CCT8
NM_006585.4 missense

Scores

4
14

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 3.03
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.005824864).
BP6
Variant 21-29061555-C-T is Benign according to our data. Variant chr21-29061555-C-T is described in ClinVar as [Benign]. Clinvar id is 769121.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0701 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CCT8NM_006585.4 linkuse as main transcriptc.1225G>A p.Val409Ile missense_variant 12/15 ENST00000286788.9 NP_006576.2 P50990-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CCT8ENST00000286788.9 linkuse as main transcriptc.1225G>A p.Val409Ile missense_variant 12/151 NM_006585.4 ENSP00000286788.4 P50990-1

Frequencies

GnomAD3 genomes
AF:
0.0208
AC:
3167
AN:
151918
Hom.:
115
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0722
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00794
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0158
Gnomad NFE
AF:
0.000265
Gnomad OTH
AF:
0.0178
GnomAD3 exomes
AF:
0.00551
AC:
1385
AN:
251374
Hom.:
44
AF XY:
0.00400
AC XY:
543
AN XY:
135862
show subpopulations
Gnomad AFR exome
AF:
0.0740
Gnomad AMR exome
AF:
0.00330
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000405
Gnomad OTH exome
AF:
0.00261
GnomAD4 exome
AF:
0.00220
AC:
3214
AN:
1461220
Hom.:
92
Cov.:
32
AF XY:
0.00197
AC XY:
1433
AN XY:
726956
show subpopulations
Gnomad4 AFR exome
AF:
0.0733
Gnomad4 AMR exome
AF:
0.00378
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000174
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000240
Gnomad4 OTH exome
AF:
0.00469
GnomAD4 genome
AF:
0.0209
AC:
3177
AN:
152038
Hom.:
115
Cov.:
32
AF XY:
0.0201
AC XY:
1492
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.0722
Gnomad4 AMR
AF:
0.00793
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000265
Gnomad4 OTH
AF:
0.0176
Alfa
AF:
0.00420
Hom.:
26
Bravo
AF:
0.0239
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.0785
AC:
346
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.00695
AC:
844
Asia WGS
AF:
0.00289
AC:
10
AN:
3478
EpiCase
AF:
0.000436
EpiControl
AF:
0.000771

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 18, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.28
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.28
.;T;.
Eigen
Benign
0.017
Eigen_PC
Benign
0.13
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.95
D;D;D
MetaRNN
Benign
0.0058
T;T;T
MetaSVM
Benign
-0.59
T
MutationAssessor
Benign
1.7
.;L;.
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-0.28
N;N;.
REVEL
Benign
0.24
Sift
Benign
0.096
T;T;.
Sift4G
Benign
0.14
T;T;T
Polyphen
0.010
.;B;.
Vest4
0.23
MVP
0.52
MPC
0.21
ClinPred
0.012
T
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.15
gMVP
0.34

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: rs8129954; hg19: chr21-30433876; API