Information on CLPB

Basic details

Alt. symbols: HSP78 | SKD3 | FLJ13152 | ANKCLB

Approved name: ClpB family mitochondrial disaggregase
Alt. names: ClpB caseinolytic peptidase B homolog (E. coli), ClpB homolog, mitochondrial AAA ATPase chaperonin | suppressor of potassium transport defect 3, ankyrin-repeat containing bacterial clp fusion

Location: 11q13.4: 72285495 - 72434680 (-)
Gene type: protein_coding, 22 transcripts.

Scores: LoFtool: 0.804000 | pLI: 0.00000913 | LOEUF: 0.536

HGNC: 30664

NCBI: 81570, RefSeq: NG_042130.2

Ensembl: ENSG00000162129.15

LRG_1338 | Status: public

OMIM: 616254

Expression | ProteinAtlas

Normal function

The CLPB gene encodes a protein that is crucial for maintaining mitochondrial function in humans. Mitochondria are the powerhouses of the cell, responsible for generating energy in the form of ATP. The CLPB protein, belonging to the AAA+ (ATPases associated with diverse cellular activities) family, assists in the proper folding and assembly of proteins within the mitochondria to ensure their functionality. It also helps in the quality control of mitochondrial proteins, ensuring that damaged or misfolded proteins are either refolded or targeted for degradation, thus contributing to the overall health, integrity and efficiency of the mitochondria.

Dysfunction and disease

Mutations in the CLPB gene can lead to mitochondrial dysfunction. Both monoallelic and biallelic mutations in this gene have been associated with both autosomal dominant (AD) and recessive forms (AR) of 3-methylglutaconic aciduria type VII, respectively known as MGCA7 (MIM#619835) and MGCA7B (MIM#616271). These conditions are associated with variable neurologic deficits and neutropenia. The phenotype is highly variable: most patients have infantile onset of a severe progressive encephalopathy wi th various movement abnormalities and delayed psychomotor development. Other common variable features include seizures, recurrent infections due to neutropenia, anemia, and brain imaging abnormalities. However some mutations have been reported to cause an immune predominant phenotype, mainly characterized by congenital neutropenia and recurrent infections (SCN9, MIM#619813), neurologic manifestations may occur but are rare. [Load More]

[Reviewed by Andrés Caballero-Oteyza on 2023-12-14 13:14:56]

Associated conditions

Acronym Condition's_name MOI Mode_of_actionwww icon OMIM_ID No.cases
MGCA7B 3-methylglutaconic aciduria, type VIIB ARdict. icon 616271www icon 2 (1 fams)
MGCA7A 3-methylglutaconic aciduria, type VIIA ADdict. icon 619835www icon 0 (0 fams)
SCN9 Severe congenital neutropenia 9 ADdict. icon 619813www icon 0 (0 fams)

Please mind that full curation (inclusion of all published patients) of this gene has not been completed yet. It is currently ongoing.

Transcripts of CLPB

Name ENSEMBL_ID LRG_ID CCDS_ID MANE Transcript.type Exons Canonical CDS_length REFSEQ_ID
209 ENST00000538039.6 1 CCDS58154 Select protein_coding 16 Yes 9963 NM_001258392
201 ENST00000294053.9 CCDS8215 Plus Clinical protein_coding 17 No 10053 NM_001258394,NM_030813
202 ENST00000340729.9 CCDS58153 protein_coding 15 No 2071 NM_001258393

Published variants

Found 2 variants

Var.name Exon/Intron cDNA_pos. CDS_change Prot.change Var.type Var.class. Patients
R417* EX11 1306 c.1249C>T p.Arg417Ter stop_gained Pathogenic 2
R250* EX6 805 c.748C>T p.Arg250Ter stop_gained Pathogenic 2

Please mind that full curation (inclusion of all published variants) of this gene has not been completed yet. It is currently ongoing.

Diagnostic pitfalls & paradigms

Considerations to take into account when analyzing this gene

Year Paradigm ⓘ PMID Notes
- Regions of Homology -
-Cryptic splicing-Unreported or not recorded in our DB.
-Uniparental disomy-Unreported or not recorded in our DB.
-Mosaicism-Unreported or not recorded in our DB.
-Incomplete penetrance-Unreported or not recorded in our DB.
-Di-/oligo-genic inheritance-Unreported or not recorded in our DB.
-Somatic reversion-Unreported or not recorded in our DB.

References linked to variants in CLPB

ID Year Title Journal PMID Variants
645 2021 Mosaic IL6ST variant inducing constitutive GP130 cytokine re... Hum. Mol. Genet. 33517393 2

Phenotypic & functional assays available?

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