Genetic Variant NM_005998.5:c.989G>A (chr1-156312207-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_005998.5(CCT3):c.989G>A(p.Arg330Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000186 in 1,613,952 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

CCT3
NM_005998.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.07

Publications

2 publications found

Variant links:

Genes affected

CCT3 (HGNC:1616): (chaperonin containing TCP1 subunit 3) The protein encoded by this gene is a molecular chaperone that is a member of the chaperonin containing TCP1 complex (CCT), also known as the TCP1 ring complex (TRiC). This complex consists of two identical stacked rings, each containing eight different proteins. Unfolded polypeptides enter the central cavity of the complex and are folded in an ATP-dependent manner. The complex folds various proteins, including actin and tubulin. Alternate transcriptional splice variants have been characterized for this gene. In addition, a pseudogene of this gene has been found on chromosome 8. [provided by RefSeq, Aug 2010]

CCT3 Gene-Disease associations (from GenCC):

neurodevelopmental disorder
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
neurodevelopmental disorder with speech or visual impairment and brain hypomyelination
Inheritance: AD Classification: MODERATE Submitted by: G2P

CCT3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2

High AC in GnomAdExome4 at 28 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005998.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CCT3	NM_005998.5	MANE Select	c.989G>A	p.Arg330Gln	missense	Exon 11 of 14	NP_005989.3
CCT3	NM_001008800.3		c.875G>A	p.Arg292Gln	missense	Exon 9 of 12	NP_001008800.1	P49368-2
CCT3	NR_036564.2		n.1259G>A		non_coding_transcript_exon	Exon 12 of 15

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CCT3	ENST00000295688.8	TSL:1 MANE Select	c.989G>A	p.Arg330Gln	missense	Exon 11 of 14	ENSP00000295688.3	P49368-1
CCT3	ENST00000954294.1		c.1010G>A	p.Arg337Gln	missense	Exon 11 of 14	ENSP00000624353.1
CCT3	ENST00000898516.1		c.1004G>A	p.Arg335Gln	missense	Exon 11 of 14	ENSP00000568575.1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

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

GnomAD2 exomes

AF:

0.0000279

AC:

AN:

251078

AF XY:

0.0000295

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000381

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1461656

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

727138

show subpopulations

African (AFR)

AF:

0.000209

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44696

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.000252

AC:

AN:

39694

South Asian (SAS)

AF:

0.0000464

AC:

AN:

86228

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53368

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1111912

Other (OTH)

AF:

0.0000166

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

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

AF:

0.0000131

AC:

AN:

152296

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41572

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000330

AC:

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

0.14

BayesDel_addAF

Benign

-0.029

BayesDel_noAF

Uncertain

0.020

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.28

Eigen

Uncertain

0.22

Eigen_PC

Uncertain

0.36

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

M_CAP

Benign

0.046

MetaRNN

Uncertain

0.47

MetaSVM

Benign

-0.58

MutationAssessor

Benign

1.3

PhyloP100

6.1

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

-0.17

REVEL

Uncertain

0.41

Sift

Benign

0.046

Sift4G

Benign

0.21

Polyphen

0.13

Vest4

0.73

MutPred

0.49

Loss of MoRF binding (P = 0.0444)

MVP

0.75

MPC

0.33

ClinPred

0.30

GERP RS

5.3

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.7

Varity_R

0.42

gMVP

0.78

Mutation Taster

=78/22

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over