CNTNAP1 Gene Summary [Human]

The gene product was initially identified as a 190-kD protein associated with the contactin-PTPRZ1 complex. The 1,384-amino acid protein, also designated p190 or CASPR for 'contactin-associated protein,' includes an extracellular domain with several putative protein-protein interaction domains, a putative transmembrane domain, and a 74-amino acid cytoplasmic domain. Northern blot analysis showed that the gene is transcribed predominantly in brain as a transcript of 6.2 kb, with weak expression in several other tissues tested. The architecture of its extracellular domain is similar to that of neurexins, and this protein may be the signaling subunit of contactin, enabling recruitment and activation of intracellular signaling pathways in neurons. [provided by RefSeq, Jan 2009]

Details

Type
Protein Coding
Official Symbol
CNTNAP1
Official Name
contactin associated protein 1 [Source:HGNC Symbol;Acc:HGNC:8011]
Ensembl ID
ENSG00000108797
Bio databases IDs NCBI: 8506 Ensembl: ENSG00000108797
Aliases contactin associated protein 1, neurexin 4
Synonyms AI841080, CASPR, CHN3, CNTNAP, contactin associated protein 1, contactin associated protein-like 1, NCP1, NRXN4, P190, Paranodin, shm
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 CNTNAP1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • extracellular domain
  • signaling receptor activity
  • Coagulation factor 5/8 C-terminal domain, discoidin domain
  • LamG
  • protein binding
  • SH3-domain binding
  • EGF_CA
  • ERM binding domain
  • putative band 4.1 homologues' binding motif
  • cytoplasmic domain
  • transmembrane domain
  • F5/8 type C domain
  • membrane-proximal domain
  • laminin G domain
  • FA58C

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • gait disturbance
  • lethal congenital contracture syndrome type 7
  • distal arthrogryposis type 1A
  • major depression
  • breast carcinoma
  • pervasive developmental disorder
  • schizophrenia
  • hereditary disorder
  • colorectal cancer
  • congenital hypomyelinating neuropathy type 3
regulated by
role in cell
  • formation
  • production in
  • binding
  • assembly
  • development
  • morphology
  • abnormal morphology
  • organization
  • maturation
  • morphogenesis

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Plasma Membrane
  • myelin enriched fraction
  • membrane fraction
  • glutaminergic synapse
  • axon component
  • Cytoplasm
  • cell surface
  • cellular membrane
  • Endoplasmic Reticulum
  • intercellular junctions
  • nodes of Ranvier
  • axo-glial junction
  • axonal membrane
  • paranodes
  • paranodal junctions
  • paranodal axolemma
  • nodal axolemma
  • myelin sheath
  • juxtaparanodes
  • internodes
  • synapse
  • mesaxons
  • Schmidt-Lanterman incisures
  • perikaryon
  • axons
  • dendrites
  • detergent-soluble fraction

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human CNTNAP1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • regulation of synapse maturation
  • cytoskeleton organization
  • signal transduction
  • neuron projection morphogenesis
  • cell adhesion
  • protein localization to paranode region of axon
  • mitochondrion organization
  • central nervous system myelination
  • neuromuscular process controlling posture
  • myelination in peripheral nervous system
  • paranodal junction assembly
  • axonogenesis
  • postsynaptic density organization
  • protein localization to juxtaparanode region of axon
  • neuronal action potential propagation
  • neuromuscular process controlling balance

Cellular Component

Where in the cell the gene product is active
  • paranode region of axon
  • presynaptic active zone
  • paranodal junction
  • membrane
  • plasma membrane

Molecular Function

What the gene product does at the molecular level
  • protein binding
  • signaling receptor activity
  • SH3 domain binding

Gene-Specific Assays for Results You Can Trust

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