HMGCL
Hydroxymethylglutaryl-CoA lyase, mitochondrial
Also known as: HL, HMGCL_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P35914
- Gene
- HMGCL
- Ensembl
- ENSG00000117305
- Chromosome
- 1
- Canonical length
- 325 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Plasma proteins, Potential drug targets, Predicted intracellular proteins
- Quaternary structure
- Homotetramer
OverviewNCBI Gene
The protein encoded by this gene belongs to the HMG-CoA lyase family. It is a mitochondrial enzyme that catalyzes the final step of leucine degradation and plays a key role in ketone body formation. Mutations in this gene are associated with HMG-CoA lyase deficiency. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]
Canonical amino-acid sequenceUniProt
325 residues, UniProt reviewed canonical sequence.
>P35914|HMGCL
1 MAAMRKALPR RLVGLASLRA VSTSSMGTLP KRVKIVEVGP RDGLQNEKNI VSTPVKIKLI
61 DMLSEAGLSV IETTSFVSPK WVPQMGDHTE VLKGIQKFPG INYPVLTPNL KGFEAAVAAG
121 AKEVVIFGAA SELFTKKNIN CSIEESFQRF DAILKAAQSA NISVRGYVSC ALGCPYEGKI
181 SPAKVAEVTK KFYSMGCYEI SLGDTIGVGT PGIMKDMLSA VMQEVPLAAL AVHCHDTYGQ
241 ALANTLMALQ MGVSVVDSSV AGLGGCPYAQ GASGNLATED LVYMLEGLGI HTGVNLQKLL
301 EAGNFICQAL NRKTSSKVAQ ATCKLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against HMGCL 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.26
- Highest tissue expression
- 322 nTPM
Expression across tissuesHPA
Tissue
- liver: 322 nTPM
- kidney: 108 nTPM
- choroid plexus: 81 nTPM
- tongue: 66 nTPM
- adrenal gland: 62 nTPM
- skeletal muscle: 60 nTPM
Single-cell type
- hepatocytes: 194 nCPM
- esophageal apical cells: 125 nCPM
- hofbauer cells: 92 nCPM
- parietal cells: 73 nCPM
- epididymal principal cells: 70 nCPM
- enterocytes: 69 nCPM
Immune cell
- basophil: 104 nTPM
- non-classical monocyte: 78 nTPM
- classical monocyte: 67 nTPM
- eosinophil: 66 nTPM
- intermediate monocyte: 66 nTPM
- total PBMC: 62 nTPM
Brain region
- choroid plexus: 25 nTPM
- thalamus: 19 nTPM
- white matter: 16 nTPM
- medulla oblongata: 14 nTPM
- basal ganglia: 12 nTPM
- cerebellum: 12 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about HMGCL.
Disease | AllUniProt
Conditions HMGCL is implicated in, by any mechanism.
- 3-hydroxy-3-methylglutaryl-CoA lyase deficiency (HMGCLD) MIM:246450
Disease | GeneticClinVar
103 pathogenic / likely-pathogenic of 567 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Deficiency of hydroxymethylglutaryl-CoA lyase
- Long chain 3-hydroxyacyl-CoA dehydrogenase deficiency
- Inborn genetic diseases
- HMGCL-related disorder
- Ovarian serous cystadenocarcinoma
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)
- 1.11
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.46
- DepMap mean gene effect
- 0.02
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- ketone body biosynthetic process
- L-leucine catabolic process
- lipid metabolic process
- mitochondrion organization
Molecular functions
- hydroxymethylglutaryl-CoA lyase activity
- magnesium ion binding
- manganese ion binding
- metal ion binding
- structural molecule activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Pyruvate carboxyltransferase
- Aldolase-type TIM barrel
- HMG-CoA lyase
- HMGL-like
- Hydroxymethylglutaryl-CoA lyase, active site
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads HMGCL as an antibody target. Whether an autoantibody or antibody against HMGCL could matter depends on whether native HMGCL is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
HMGCL 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 HMGCL as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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