CLPB
Mitochondrial disaggregase
Also known as: ANKCLB, CLPB_HUMAN, FLJ13152, HSP78, SKD3
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9H078
- Gene
- CLPB
- Ensembl
- ENSG00000162129
- Chromosome
- 11
- Canonical length
- 707 aa
- Protein class
- Disease related genes, Human disease related genes, Plasma proteins, Predicted intracellular proteins
- Quaternary structure
- Homohexamer
OverviewNCBI Gene
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]
Canonical amino-acid sequenceUniProt
707 residues, UniProt reviewed canonical sequence.
>Q9H078|CLPB
1 MLGSLVLRRK ALAPRLLLRL LRSPTLRGHG GASGRNVTTG SLGEPQWLRV ATGGRPGTSP
61 ALFSGRGAAT GGRQGGRFDT KCLAAATWGR LPGPEETLPG QDSWNGVPSR AGLGMCALAA
121 ALVVHCYSKS PSNKDAALLE AARANNMQEV SRLLSEGADV NAKHRLGWTA LMVAAINRNN
181 SVVQVLLAAG ADPNLGDDFS SVYKTAKEQG IHSLEDGGQD GASRHITNQW TSALEFRRWL
241 GLPAGVLITR EDDFNNRLNN RASFKGCTAL HYAVLADDYR TVKELLDGGA NPLQRNEMGH
301 TPLDYAREGE VMKLLRTSEA KYQEKQRKRE AEERRRFPLE QRLKEHIIGQ ESAIATVGAA
361 IRRKENGWYD EEHPLVFLFL GSSGIGKTEL AKQTAKYMHK DAKKGFIRLD MSEFQERHEV
421 AKFIGSPPGY VGHEEGGQLT KKLKQCPNAV VLFDEVDKAH PDVLTIMLQL FDEGRLTDGK
481 GKTIDCKDAI FIMTSNVASD EIAQHALQLR QEALEMSRNR IAENLGDVQI SDKITISKNF
541 KENVIRPILK AHFRRDEFLG RINEIVYFLP FCHSELIQLV NKELNFWAKR AKQRHNITLL
601 WDREVADVLV DGYNVHYGAR SIKHEVERRV VNQLAAAYEQ DLLPGGCTLR ITVEDSDKQL
661 LKSPELPSPQ AEKRLPKLRL EIIDKDSKTR RLDIRAPLHP EKVCNTILocalizationUniProt · AlphaFold · HPA
Whether an antibody against CLPB can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Other membrane
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.4
- Highest tissue expression
- 120 nTPM
Expression across tissuesHPA
Tissue
- testis: 120 nTPM
- liver: 9.7 nTPM
- bone marrow: 8.6 nTPM
- kidney: 8.1 nTPM
- skeletal muscle: 8.1 nTPM
- adrenal gland: 7.5 nTPM
Single-cell type
- late spermatids: 9,190 nCPM
- early spermatids: 1,310 nCPM
- late primary spermatocytes: 371 nCPM
- monocyte progenitors: 89 nCPM
- neutrophil progenitors: 71 nCPM
- syncytiotrophoblasts: 64 nCPM
Immune cell
- myeloid DC: 25 nTPM
- classical monocyte: 16 nTPM
- intermediate monocyte: 13 nTPM
- non-classical monocyte: 7.8 nTPM
- basophil: 7.7 nTPM
- total PBMC: 7.7 nTPM
Brain region
- pons: 33 nTPM
- medulla oblongata: 32 nTPM
- thalamus: 30 nTPM
- cerebellum: 30 nTPM
- hypothalamus: 29 nTPM
- cerebral cortex: 29 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CLPB.
Disease | AllUniProt
Conditions CLPB is implicated in, by any mechanism.
- 3-methylglutaconic aciduria 7B (MGCA7B) MIM:616271
- 3-methylglutaconic aciduria 7A (MGCA7A) MIM:619835
- Neutropenia, severe congenital 9, autosomal dominant (SCN9) MIM:619813
Disease | GeneticClinVar
51 pathogenic / likely-pathogenic of 892 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- 3-methylglutaconic aciduria, type VIIB
- Neutropenia, severe congenital, 9, autosomal dominant
- Inborn genetic diseases
- 3-methylglutaconic aciduria, type VIIA
- Decreased total neutrophil count
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.54
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.05
- DepMap mean gene effect
- -0.2
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 8% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- antiviral innate immune response
- cellular response to heat
- granulocyte differentiation
- RIG-I signaling pathway
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- ClpA/B family
- Ankyrin repeat
- AAA+ ATPase domain
- ATPase, AAA-type, core
- Clp ATPase, C-terminal
- P-loop containing nucleoside triphosphate hydrolase
- Ankyrin repeat-containing domain superfamily
- AAA domain (Cdc48 subfamily)
- C-terminal, D2-small domain, of ClpB protein
- Ankyrin repeats (3 copies)
- ATP-dependent Clp protease/Chaperone ClpA/ClpB
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CLPB in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CLPB as an antibody target. Whether an autoantibody or antibody against CLPB could matter depends on whether native CLPB is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CLPB is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label CLPB as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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