NM_001008708.4:c.97T>C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3_Moderate

The NM_001008708.4(CHAC2):​c.97T>C​(p.Trp33Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000376 in 1,613,788 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00040 ( 0 hom. )

Consequence

CHAC2
NM_001008708.4 missense

Scores

10
5
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.55

Publications

1 publications found
Variant links:
Genes affected
CHAC2 (HGNC:32363): (ChaC glutathione specific gamma-glutamylcyclotransferase 2) The protein encoded by this gene is a gamma-glutamyl cyclotransferase that catalyzes the conversion of glutathione to 5-oxoproline and cysteinylglycine. It is thought that this gene is upregulated in response to endoplasmic reticulum stress and that the glutathione depletion enhances apoptosis. [provided by RefSeq, Sep 2016]
ASB3 (HGNC:16013): (ankyrin repeat and SOCS box containing 3) The protein encoded by this gene is a member of the ankyrin repeat and SOCS box-containing (ASB) family of proteins. They contain ankyrin repeat sequence and SOCS box domain. The SOCS box serves to couple suppressor of cytokine signalling (SOCS) proteins and their binding partners with the elongin B and C complex, possibly targeting them for degradation. Alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Jan 2011]
GPR75-ASB3 (HGNC:40043): (GPR75-ASB3 readthrough) This locus represents naturally occurring read-through transcription between the neighboring GPR75 (G protein-coupled receptor 75) and ASB3 (ankyrin repeat and SOCS box containing 3) on chromosome 2. The transcript includes exons from both GPR75 and ASB3 and translation initiates in the 5' non-coding exon of GPR75. The resulting protein has a novel N-terminus but is otherwise identical to that encoded by ASB3.[provided by RefSeq, Feb 2011]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.885

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001008708.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHAC2
NM_001008708.4
MANE Select
c.97T>Cp.Trp33Arg
missense
Exon 1 of 3NP_001008708.1Q8WUX2
ASB3
NM_016115.5
MANE Select
c.-13-2398A>G
intron
N/ANP_057199.1Q9Y575-1
CHAC2
NM_001346127.1
c.-77T>C
5_prime_UTR
Exon 1 of 3NP_001333056.1Q8WUX2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHAC2
ENST00000295304.5
TSL:1 MANE Select
c.97T>Cp.Trp33Arg
missense
Exon 1 of 3ENSP00000295304.4Q8WUX2
ASB3
ENST00000263634.8
TSL:1 MANE Select
c.-13-2398A>G
intron
N/AENSP00000263634.2Q9Y575-1
CHAC2
ENST00000893858.1
c.97T>Cp.Trp33Arg
missense
Exon 1 of 2ENSP00000563917.1

Frequencies

GnomAD3 genomes
AF:
0.000151
AC:
23
AN:
152064
Hom.:
0
Cov.:
33
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000324
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000143
AC:
36
AN:
250926
AF XY:
0.000147
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000282
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000400
AC:
584
AN:
1461724
Hom.:
0
Cov.:
31
AF XY:
0.000391
AC XY:
284
AN XY:
727186
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33474
American (AMR)
AF:
0.0000224
AC:
1
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53316
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.000472
AC:
525
AN:
1111970
Other (OTH)
AF:
0.000911
AC:
55
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
34
67
101
134
168
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
22
44
66
88
110
<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:
0.000151
AC:
23
AN:
152064
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74306
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41458
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000324
AC:
22
AN:
67892
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.000330
Hom.:
0
Bravo
AF:
0.000230
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000115
AC:
14
EpiCase
AF:
0.000491
EpiControl
AF:
0.000297

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Uncertain
0.099
D
BayesDel_noAF
Pathogenic
0.20
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Benign
0.23
T
Eigen
Pathogenic
0.86
Eigen_PC
Pathogenic
0.77
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.068
D
MetaRNN
Pathogenic
0.88
D
MetaSVM
Uncertain
-0.18
T
MutationAssessor
Pathogenic
3.8
H
PhyloP100
7.6
PrimateAI
Pathogenic
0.84
D
PROVEAN
Pathogenic
-9.1
D
REVEL
Uncertain
0.56
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.99
D
Vest4
0.94
MutPred
0.80
Gain of disorder (P = 0.0012)
MVP
0.67
MPC
0.0046
ClinPred
1.0
D
GERP RS
4.8
PromoterAI
0.31
Neutral
Varity_R
0.97
gMVP
0.85
Mutation Taster
=10/90
disease causing

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

Other links and lift over

dbSNP: rs201804249; hg19: chr2-53995120; API