Genetic Variant NM_014406.5:c.1643A>G (chr22-16590908-T-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_014406.5(CCT8L2):c.1643A>G(p.Glu548Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CCT8L2
NM_014406.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.29

Publications

0 publications found

Variant links:

Genes affected

CCT8L2 (HGNC:15553): (chaperonin containing TCP1 subunit 8 like 2) Predicted to enable unfolded protein binding activity. Predicted to be involved in protein folding. Predicted to be part of chaperonin-containing T-complex. [provided by Alliance of Genome Resources, Apr 2022]

CCT8L2 links:

ENSG00000290416 (HGNC:):

ENSG00000290416 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06587574).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014406.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CCT8L2	NM_014406.5	MANE Select	c.1643A>G	p.Glu548Gly	missense	Exon 1 of 1	NP_055221.1	Q96SF2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CCT8L2	ENST00000359963.4	TSL:6 MANE Select	c.1643A>G	p.Glu548Gly	missense	Exon 1 of 1	ENSP00000353048.3	Q96SF2
ENSG00000290416	ENST00000472972.2	TSL:2	n.287-6214A>G		intron	N/A
ENSG00000290416	ENST00000725389.1		n.112-6214A>G		intron	N/A

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000804

AC:

AN:

248824

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459078

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

725792

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33144

American (AMR)

AF:

0.00

AC:

AN:

44058

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26014

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

85640

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53406

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5744

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111174

Other (OTH)

AF:

0.00

AC:

AN:

60208

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.088

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.57

CADD

Benign

1.7

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.0040

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.0020

LIST_S2

Benign

0.25

M_CAP

Benign

0.0016

MetaRNN

Benign

0.066

MetaSVM

Benign

-1.0

PhyloP100

-1.3

PrimateAI

Benign

0.38

PROVEAN

Benign

-0.38

REVEL

Benign

0.066

Sift

Benign

0.046

Sift4G

Benign

0.16

Polyphen

0.043

Vest4

0.035

MutPred

0.13

Gain of MoRF binding (P = 0.0331)

MVP

0.030

MPC

0.18

ClinPred

0.029

GERP RS

-4.0

Varity_R

0.055

gMVP

0.061

Mutation Taster

=100/0

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over