HADHB Gene Summary [Human]

This gene encodes the beta subunit of the mitochondrial trifunctional protein, which catalyzes the last three steps of mitochondrial beta-oxidation of long chain fatty acids. The mitochondrial membrane-bound heterocomplex is composed of four alpha and four beta subunits, with the beta subunit catalyzing the 3-ketoacyl-CoA thiolase activity. The encoded protein can also bind RNA and decreases the stability of some mRNAs. The genes of the alpha and beta subunits of the mitochondrial trifunctional protein are located adjacent to each other in the human genome in a head-to-head orientation. Mutations in this gene result in trifunctional protein deficiency. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2013]

Details

Type
Protein Coding
Official Symbol
HADHB
Official Name
hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit beta [Source:HGNC Symbol;Acc:HGNC:4803]
Ensembl ID
ENSG00000138029
Bio databases IDs NCBI: 3032 Ensembl: ENSG00000138029
Aliases hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit beta, mitochondrial trifunctional protein, beta subunit
Synonyms 3-Ketoacyl-CoA Thiolase, 3-Ketoacyl-CoA Thiolase B, 4930479F15Rik, A hydratase (trifunctional protein), beta subunit, A hydratase (trifunctional protein), β subunit, ECHB, hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit beta, hydroxyacyl-CoA dehydrogenase trifunctional multienzyme complex subunit β, Kat, LKAT, Long-chain 3-ketoacyl-CoA thiolase, Mitochondrial long chain 3-ketoacyl-CoA thiolase, MSTP029, MTPB, MTPD, MTPD2, TP-BETA, TP-β
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human HADHB often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Thiolase, N-terminal domain
  • 3-hydroxyacyl-CoA dehydrogenase
  • acetyl-CoA acetyltransferases
  • acetyl-CoA C-acetyltransferase
  • enzyme
  • protein binding
  • Beta-ketoacyl synthase, C-terminal domain
  • RNA binding
  • enoyl-CoA hydratase
  • cond_enzymes
  • acetyl-CoA C-acyltransferase
  • binding protein
  • Thiolase, C-terminal domain

Pathways

Biological processes and signaling networks where the HADHB gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • epithelial cancer
  • mitochondrial trifunctional protein deficiency
  • Huntington disease
  • mitochondrial trifunctional protein deficiency type 2
  • mitochondrial trifunctional protein deficiency type 1
  • liver cancer
  • hepatocellular carcinoma
  • HADHA-related disorder
  • mitochondrial trifunctional protein deficiency type 2 with myopathy and neuropathy
regulated by
regulates
role in cell
  • expression in
  • formation
  • phosphorylation in
  • migration
  • growth
  • invasion by
  • thiolysis in
  • polymerization in
  • response
  • formation in

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • detergent resistant lipid raft fraction
  • mitochondrial envelope
  • cellular membrane
  • Endoplasmic Reticulum
  • Mitochondria
  • mitochondrial membrane
  • mitochondrial matrix
  • mitochondrial nucleoids
  • mitochondrial outer membrane
  • mitochondrial inner membrane
  • nucleoplasm
  • nucleoli
  • nuclear speckles
  • exosomes
  • cytoplasmic fraction

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human HADHB gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • fatty acid beta-oxidation
  • cellular response to lipopolysaccharide
  • gene expression

Cellular Component

Where in the cell the gene product is active
  • mitochondrial fatty acid beta-oxidation multienzyme complex
  • mitochondrion
  • endoplasmic reticulum
  • mitochondrial outer membrane
  • mitochondrial envelope
  • mitochondrial inner membrane
  • mitochondrial nucleoid

Molecular Function

What the gene product does at the molecular level
  • acetyl-CoA C-acetyltransferase activity
  • protein binding
  • RNA binding
  • acetyl-CoA C-acyltransferase activity
  • 3-hydroxyacyl-CoA dehydrogenase activity
  • enoyl-CoA hydratase activity
  • acetyl-CoA C-myristoyltransferase activity

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.