rs200203460

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_030813.6(CLPB):​c.1249C>T​(p.Arg417*) variant causes a stop gained change. The variant allele was found at a frequency of 0.0000882 in 1,461,804 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 Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000088 ( 0 hom. )

Consequence

CLPB
NM_030813.6 stop_gained

Scores

4
2
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:8O:1

Conservation

PhyloP100: 5.26

Publications

13 publications found
Variant links:
Genes affected
CLPB (HGNC:30664): (ClpB family mitochondrial disaggregase) This gene belongs to the ATP-ases associated with diverse cellular activities (AAA+) superfamily. Members of this superfamily form ring-shaped homo-hexamers and have highly conserved ATPase domains that are involved in various processes including DNA replication, protein degradation and reactivation of misfolded proteins. All members of this family hydrolyze ATP through their AAA+ domains and use the energy generated through ATP hydrolysis to exert mechanical force on their substrates. In addition to an AAA+ domain, the protein encoded by this gene contains a C-terminal D2 domain, which is characteristic of the AAA+ subfamily of Caseinolytic peptidases to which this protein belongs. It cooperates with Hsp70 in the disaggregation of protein aggregates. Allelic variants of this gene are associated with 3-methylglutaconic aciduria, which causes cataracts and neutropenia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]
CLPB Gene-Disease associations (from GenCC):
  • 3-methylglutaconic aciduria, type VIIB
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • neutropenia, severe congenital, 9, autosomal dominant
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • Leigh syndrome
    Inheritance: AR Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 11-72302312-G-A is Pathogenic according to our data. Variant chr11-72302312-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 187786.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CLPBNM_030813.6 linkc.1249C>T p.Arg417* stop_gained Exon 11 of 17 ENST00000294053.9 NP_110440.1 Q9H078-1A0A140VK11
CLPBNM_001258392.3 linkc.1159C>T p.Arg387* stop_gained Exon 10 of 16 ENST00000538039.6 NP_001245321.1 Q9H078-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CLPBENST00000294053.9 linkc.1249C>T p.Arg417* stop_gained Exon 11 of 17 1 NM_030813.6 ENSP00000294053.3 Q9H078-1
CLPBENST00000538039.6 linkc.1159C>T p.Arg387* stop_gained Exon 10 of 16 2 NM_001258392.3 ENSP00000441518.1 Q9H078-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000279
AC:
7
AN:
251226
AF XY:
0.0000368
show subpopulations
Gnomad AFR exome
AF:
0.0000615
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:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000882
AC:
129
AN:
1461804
Hom.:
0
Cov.:
30
AF XY:
0.0000963
AC XY:
70
AN XY:
727212
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33474
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
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:
0.000114
AC:
127
AN:
1111938
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
7
14
22
29
36
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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.:
32
Alfa
AF:
0.0000634
Hom.:
0
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:8Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

3-methylglutaconic aciduria, type VIIB Pathogenic:4Other:1
Jan 15, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Arg417*) in the CLPB gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in CLPB are known to be pathogenic (PMID: 25597510, 28687938). This variant is present in population databases (rs200203460, gnomAD 0.007%). This premature translational stop signal has been observed in individuals with 3-methylglutaconic aciduria (PMID: 25597510, 25597511, 27290639, 28687938). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 187786). For these reasons, this variant has been classified as Pathogenic. -

Sep 04, 2015
HudsonAlpha Institute for Biotechnology, HudsonAlpha Institute for Biotechnology
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:research

- -

-
GeneReviews
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

- -

Jul 15, 2021
Equipe Genetique des Anomalies du Developpement, Université de Bourgogne
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 05, 2015
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not provided Pathogenic:2
Sep 12, 2019
Revvity Omics, Revvity
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 17, 2025
GeneDx
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss of function is a known mechanism of disease; This variant is associated with the following publications: (PMID: 28554332, 25473036, 28687938, 33517393, 31345219, 27290639, 25597511, 25597510, 36074910, 34782754) -

3-methylglutaconic aciduria, type VIIB;C5676954:Neutropenia, severe congenital, 9, autosomal dominant;C5676967:3-methylglutaconic aciduria, type VIIA Pathogenic:1
Apr 25, 2022
Fulgent Genetics, Fulgent Genetics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Premature ovarian insufficiency;C0853697:Decreased total neutrophil count Pathogenic:1
May 22, 2022
Reproductive Development, Murdoch Childrens Research Institute
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Pathogenic
0.50
D
BayesDel_noAF
Pathogenic
0.63
CADD
Pathogenic
41
DANN
Uncertain
1.0
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.94
FATHMM_MKL
Uncertain
0.96
D
PhyloP100
5.3
Vest4
0.96
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=0/200
disease causing (ClinVar)

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: rs200203460; hg19: chr11-72013356; COSMIC: COSV53629443; API