Ctsb Gene Summary [Mouse]

This gene encodes a member of the peptidase C1 family and preproprotein that is proteolytically processed to generate multiple protein products. These products include the cathepsin B light and heavy chains, which can dimerize to generate the double chain form of the enzyme. This enzyme is a lysosomal cysteine protease with both endopeptidase and exopeptidase activity that may play a role in protein turnover. Homozygous knockout mice for this gene exhibit reduced pancreatic damage following induced pancreatitis and reduced hepatocyte apoptosis in a model of liver injury. Pseudogenes of this gene have been identified in the genome. [provided by RefSeq, Aug 2015]

Details

Type
Protein Coding
Official Symbol
Ctsb
Official Name
cathepsin B [Source:MGI Symbol;Acc:MGI:88561]
Ensembl ID
ENSMUSG00000021939
Bio databases IDs NCBI: 13030 Ensembl: ENSMUSG00000021939
Aliases cathepsin B
Synonyms AC270285.4, Alpha secretase, APPS, CATB, cathepsin B, CB, CPSB, KWE, RECEUP, α secretase
Species
Mouse, Mus musculus
OrthologiesHumanRat

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 mouse Ctsb often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • peptide binding
  • occluding loop
  • peptidase
  • Peptidase_C1
  • enzyme
  • protein binding
  • identical protein binding
  • cathepsin B
  • endopeptidase
  • cysteine-type peptidase
  • cysteine endopeptidase
  • binding protein
  • Peptidase family C1 propeptide
  • collagen binding
  • active site

Pathways

Biological processes and signaling networks where the Ctsb gene in mouse 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
  • neoplasia
  • rheumatoid arthritis
  • schizophrenia
  • epithelial cancer
  • epithelial neoplasia
  • cancer
  • adenoma formation
  • hyperglycemia
  • insulin-dependent diabetes mellitus
  • diabetes mellitus
regulated by
  • palmitic acid
  • BRAF
  • CCK
  • NPC1
  • hepatitis C virus subtype 1b strain Con1
  • LYSET
  • cholesterol
  • azithromycin
  • CA074-methyl ester
  • CTSB
role in cell
  • cell death
  • expression in
  • proliferation
  • phosphorylation in
  • migration
  • activation in
  • apoptosis
  • survival
  • accumulation in
  • number

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
  • soluble fraction
  • lysosome fractions
  • insoluble fractions
  • multivesicular domain
  • ficolin-1-rich granule lumen
  • cell surface
  • cell borders
  • Extracellular Space
  • perinuclear region
  • cellular membrane
  • podosomes
  • Nucleus
  • endosomes
  • vesicles
  • lysosome
  • Golgi Apparatus
  • Endoplasmic Reticulum
  • cytosol
  • endoplasmic reticulum lumen
  • microsome
  • cisternae
  • plasma membrane extracellular face
  • apical membrane
  • caveolae
  • lysosomal compartment
  • nuclear envelope
  • nuclear matrix
  • acrosome
  • zymogen granules
  • sarcolemma
  • perinuclear vesicles
  • secretory vesicles
  • endocytotic vesicle
  • azurophil granules
  • secretory granules
  • perikaryon
  • phagosomes
  • plasma

Gene Ontology Annotations

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

Biological Process

Functions and activities the gene product is involved in
  • viral entry into host cell
  • cellular response to thyroid hormone stimulus
  • epithelial cell differentiation
  • thyroid hormone generation
  • proteolysis
  • collagen catabolic process
  • decidualization
  • regulation of apoptotic process
  • proteolysis involved in cellular protein catabolic process

Cellular Component

Where in the cell the gene product is active
  • extracellular space
  • perinuclear region of cytoplasm
  • extracellular vesicular exosome
  • melanosome
  • endolysosome lumen
  • external side of plasma membrane
  • extracellular region
  • apical plasma membrane
  • lysosome

Molecular Function

What the gene product does at the molecular level
  • protein binding
  • collagen binding
  • proteoglycan binding
  • cysteine-type endopeptidase activity
  • cysteine-type peptidase activity
  • peptidase activity

Gene-Specific Assays for Results You Can Trust

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