an integral membrane protein of the connexin family, alpha-type (group II) subfamily. Hexamers of connexin-43 form connexons, which aggregate together to form gap junctions, through which materials of low MW diffuse from one cell to a neighboring cell. May play a critical role in the physiology of hearing by participating in the recycling of potassium to the cochlear endolymph. Note: This description may include information from UniProtKB.
Protein type: Membrane protein, multi-pass; Motility/polarity/chemotaxis; Channel, misc.; Membrane protein, integral
Chromosomal Location of Human Ortholog: 6q22.31
Cellular Component: Golgi apparatus; endoplasmic reticulum membrane; focal adhesion; contractile fiber; lysosome; integral to plasma membrane; early endosome; intermediate filament; fascia adherens; cytosol; lipid raft; Golgi membrane; connexon complex; multivesicular body; mitochondrial outer membrane; apical plasma membrane; plasma membrane; gap junction; lateral plasma membrane
Molecular Function: protein binding; signal transducer activity; ion transmembrane transporter activity; beta-tubulin binding; SH3 domain binding; gap junction channel activity; PDZ domain binding; receptor binding
Biological Process: lens development in camera-type eye; response to peptide hormone stimulus; apoptosis; heart development; neuron migration; milk ejection; signal transduction; positive regulation of vasodilation; elevation of cytosolic calcium ion concentration; muscle contraction; cell-cell signaling; negative regulation of cardiac muscle cell proliferation; positive regulation of glomerular filtration; transport; response to glucose stimulus; positive regulation of striated muscle development; heart looping; ATP transport; adult heart development; chronic inflammatory response; positive regulation of I-kappaB kinase/NF-kappaB cascade; gap junction assembly; epithelial cell maturation; in utero embryonic development; regulation of bone remodeling; skeletal muscle regeneration; positive regulation of insulin secretion; regulation of calcium ion transport; vascular transport; protein oligomerization; osteoblast differentiation; positive regulation of osteoblast differentiation; negative regulation of endothelial cell proliferation; positive regulation of protein catabolic process; positive regulation of vasoconstriction; blood vessel morphogenesis; embryonic digit morphogenesis; regulation of bone mineralization; neurite morphogenesis; response to pH
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.