NCBI and Uniprot Product Information
NCBI Description
The protein encoded by this gene belongs to the innexin family. Innexin family members are the structural components of gap junctions. This protein and pannexin 2 are abundantly expressed in central nerve system (CNS) and are coexpressed in various neuronal populations. Studies in Xenopus oocytes suggest that this protein alone and in combination with pannexin 2 may form cell type-specific gap junctions with distinct properties. [provided by RefSeq, Jul 2008]
Uniprot Description
PANX1: Structural component of the gap junctions and the hemichannels. May play a role as a Ca(2+)-leak channel to regulate ER Ca(2+) homeostasis. Belongs to the pannexin family. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: Cell adhesion; Membrane protein, multi-pass; Membrane protein, integral
Chromosomal Location of Human Ortholog: 11q21
Cellular Component: endoplasmic reticulum; endoplasmic reticulum membrane; gap junction; integral to membrane; membrane; plasma membrane; protein complex
Molecular Function: actin filament binding; calcium channel activity; gap junction hemi-channel activity; leak channel activity; protease binding; protein heterodimerization activity; receptor binding
Biological Process: calcium ion transport; cation transport; cell-cell signaling; innate immune response; positive regulation of interleukin-1 alpha secretion; positive regulation of interleukin-1 beta secretion; response to ATP; synaptic transmission