NM_006429.4:c.775A>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 1P and 3B. PP2BP4_ModerateBS2_Supporting

The NM_006429.4(CCT7):​c.775A>G​(p.Thr259Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000991 in 1,613,916 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

CCT7
NM_006429.4 missense

Scores

4
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.23

Publications

4 publications found
Variant links:
Genes affected
CCT7 (HGNC:1622): (chaperonin containing TCP1 subunit 7) This gene encodes 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. Alternative splicing results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 5 and 6. [provided by RefSeq, Oct 2009]
CCT7 Gene-Disease associations (from GenCC):
  • complex neurodevelopmental disorder
    Inheritance: AD Classification: LIMITED Submitted by: G2P
  • neurodevelopmental disorder
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 2.2579 (below the threshold of 3.09). Trascript score misZ: 2.7411 (below the threshold of 3.09). GenCC associations: The gene is linked to neurodevelopmental disorder, complex neurodevelopmental disorder.
BP4
Computational evidence support a benign effect (MetaRNN=0.070364).
BS2
High AC in GnomAd4 at 5 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006429.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CCT7
NM_006429.4
MANE Select
c.775A>Gp.Thr259Ala
missense
Exon 7 of 12NP_006420.1Q99832-1
CCT7
NM_001166285.2
c.643A>Gp.Thr215Ala
missense
Exon 8 of 13NP_001159757.1Q99832-3
CCT7
NM_001166284.2
c.514A>Gp.Thr172Ala
missense
Exon 5 of 10NP_001159756.1Q99832-4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CCT7
ENST00000258091.10
TSL:1 MANE Select
c.775A>Gp.Thr259Ala
missense
Exon 7 of 12ENSP00000258091.5Q99832-1
CCT7
ENST00000962766.1
c.769A>Gp.Thr257Ala
missense
Exon 7 of 12ENSP00000632825.1
CCT7
ENST00000915138.1
c.775A>Gp.Thr259Ala
missense
Exon 7 of 12ENSP00000585197.1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152196
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
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
GnomAD2 exomes
AF:
0.0000200
AC:
5
AN:
249462
AF XY:
0.0000148
show subpopulations
Gnomad AFR exome
AF:
0.000323
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000753
AC:
11
AN:
1461602
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727068
show subpopulations
African (AFR)
AF:
0.000269
AC:
9
AN:
33476
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111748
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.430
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000328
AC:
5
AN:
152314
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74460
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41574
American (AMR)
AF:
0.00
AC:
0
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.563
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000451
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000248
AC:
3

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.095
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.34
T
Eigen
Benign
-0.018
Eigen_PC
Benign
0.15
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.029
D
MetaRNN
Benign
0.070
T
MetaSVM
Benign
-0.56
T
MutationAssessor
Benign
0.91
L
PhyloP100
4.2
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-1.1
N
REVEL
Benign
0.049
Sift
Benign
0.10
T
Sift4G
Benign
0.12
T
Polyphen
0.040
B
Vest4
0.17
MutPred
0.19
Loss of phosphorylation at T259 (P = 0.0521)
MVP
0.35
MPC
0.46
ClinPred
0.15
T
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.39
gMVP
0.65
Mutation Taster
=84/16
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs2231427; hg19: chr2-73475046; COSMIC: COSV99240512; COSMIC: COSV99240512; API