CAPN3 Gene Summary [Human]

Calpain, a heterodimer consisting of a large and a small subunit, is a major intracellular protease, although its function has not been well established. This gene encodes a muscle-specific member of the calpain large subunit family that specifically binds to titin. Mutations in this gene are associated with limb-girdle muscular dystrophies type 2A. Alternate promoters and alternative splicing result in multiple transcript variants encoding different isoforms and some variants are ubiquitously expressed. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
CAPN3
Official Name
calpain 3 [Source:HGNC Symbol;Acc:HGNC:1480]
Ensembl ID
ENSG00000092529
Bio databases IDs NCBI: 825 Ensembl: ENSG00000092529
Aliases calpain 3
Synonyms Calpain-3, CANP3, CANPL3, Capa-3, LGMD2, LGMD2A, LGMDD4, LGMDR1, Lp82, Lp84, Lp85, M calpain, nCL-1, p94
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 CAPN3 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • peptidase
  • enzyme
  • identical protein binding
  • The penta-EF hand (PEF) family
  • C2-like domain
  • EF-hand domain
  • cysteine-type peptidase
  • Unstructured region on Calpain-3
  • cytoskeletal protein binding
  • EF hand
  • EF-hand, calcium binding motif
  • calpain
  • EF-hand domain pair
  • calmodulin binding domain
  • metal ion binding
  • enzyme binding
  • calcium ion binding
  • EFh
  • enzyme regulator activity
  • protein binding
  • receptor binding
  • CysPc
  • Calpain family cysteine protease
  • structural constituent of muscle
  • active site
  • Calpain_III

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • colorectal cancer
  • limb-girdle muscular dystrophy type 2
  • limb-girdle muscular dystrophy type 2A
  • autosomal dominant limb-girdle muscular dystrophy type 4
  • idiopathic eosinophilic myositis
  • diabetic nephropathy
  • eosinophilic myositis
  • Parkinson disease
  • autosomal dominant limb-girdle muscular dystrophy
  • ischemic stroke
regulated by
regulates
role in cell
  • expression in
  • apoptosis
  • production in
  • formation in
  • cell viability
  • cell death
  • differentiation
  • number
  • assembly
  • cell proliferation

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
  • Nucleus
  • Plasma Membrane
  • costameres
  • cytosol
  • nucleoli
  • myofibrils
  • I band
  • m-bands
  • Z line
  • myotendinous junctions
  • transverse tubules

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human CAPN3 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • muscle cell homeostasis
  • regulation of I-kappaB kinase/NF-kappaB cascade
  • positive regulation of proteolysis
  • positive regulation of NF-kappaB transcription factor activity
  • self proteolysis
  • cellular response to salt stress
  • cellular response to calcium ion
  • negative regulation of transcription, DNA-dependent
  • positive regulation of transcription, DNA-dependent
  • positive regulation of satellite cell activation involved in skeletal muscle regeneration
  • regulation of catalytic activity
  • apoptotic process
  • muscle structure development
  • negative regulation of protein sumoylation
  • response to muscle activity
  • macromolecular complex assembly
  • protein catabolic process
  • sarcomere organization
  • positive regulation of release of sequestered calcium ion into cytosol
  • myofibril assembly
  • muscle organ development
  • protein destabilization
  • regulation of myoblast differentiation
  • negative regulation of apoptotic process
  • response to calcium ion
  • proteolysis
  • protein localization in membrane
  • G1 to G0 transition involved in cell differentiation

Cellular Component

Where in the cell the gene product is active
  • nucleus
  • Z disc
  • T-tubule
  • cytoplasm
  • cytosol
  • macromolecular complex
  • nucleolus
  • plasma membrane
  • myofibril

Molecular Function

What the gene product does at the molecular level
  • protein binding
  • structural constituent of muscle
  • catalytic activity
  • calcium ion binding
  • titin binding
  • ligase regulator activity
  • cysteine-type peptidase activity
  • peptidase activity
  • calcium-dependent cysteine-type endopeptidase activity
  • sodium ion binding
  • binding, bridging

Gene-Specific Assays for Results You Can Trust

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