MyBioSource.com's CFTR Antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: EIA, Immunoassay, ELISA, and Western Blot.
Description
Description: Epithelial ion channel that plays an important role in the regulation of epithelial ion and water transport and fluid homeostasis (PubMed:26823428). Mediates the transport of chloride ions across the cell membrane (PubMed:10792060, PubMed:11524016, PubMed:11707463, PubMed:12519745, PubMed:15010471, PubMed:12588899, PubMed:17036051, PubMed:19398555, PubMed:19621064, PubMed:22178883, PubMed:25330774, PubMed:1712898, PubMed:8910473, PubMed:9804160, PubMed:12529365, PubMed:17182731, PubMed:26846474, PubMed:28087700). Channel activity is coupled to ATP hydrolysis (PubMed:8910473). The ion channel is also permeable to HCO3-; selectivity depends on the extracellular chloride concentration (PubMed:15010471, PubMed:19019741). Exerts its function also by modulating the activity of other ion channels and transporters (PubMed:12403779, PubMed:22178883, PubMed:22121115, PubMed:27941075). Plays an important role in airway fluid homeostasis (PubMed:16645176, PubMed:19621064, PubMed:26823428). Contributes to the regulation of the pH and the ion content of the airway surface fluid layer and thereby plays an important role in defense against pathogens (PubMed:14668433, PubMed:16645176, PubMed:26823428). Modulates the activity of the epithelial sodium channel (ENaC) complex, in part by regulating the cell surface expression of the ENaC complex (PubMed:17434346, PubMed:27941075, PubMed:17182731). Inhibits the activity of the ENaC channel containing subunits SCNN1A, SCNN1B and SCNN1G (PubMed:17182731). Inhibits the activity of the ENaC channel containing subunits SCNN1D, SCNN1B and SCNN1G, but not of the ENaC channel containing subunits SCNN1A, SCNN1B and SCNN1G (PubMed:27941075). May regulate bicarbonate secretion and salvage in epithelial cells by regulating the transporter SLC4A7 (PubMed:12403779). Can inhibit the chloride channel activity of ANO1 (PubMed:22178883). Plays a role in the chloride and bicarbonate homeostasis during sperm epididymal maturation and capacitation (PubMed:19923167, PubMed:27714810).
Post Translational Modifications: N-glycosylated. Phosphorylated; cAMP treatment promotes phosphorylation and activates the channel (PubMed:12588899, PubMed:17036051, PubMed:8910473). Dephosphorylation decreases the ATPase activity (in vitro) (PubMed:8910473). Phosphorylation at PKA sites activates the channel (PubMed:10792060, PubMed:12519745, PubMed:12588899, PubMed:25330774). Phosphorylation at PKC sites enhances the response to phosphorylation by PKA (PubMed:12588899). Phosphorylated by AMPK; this inhibits channel activity (PubMed:12519745). Ubiquitinated, leading to its degradation in the lysosome (PubMed:19398555). Deubiquitination by USP10 in early endosomes enhances its endocytic recycling to the cell membrane (PubMed:19398555). Ubiquitinated by RNF185 during ER stress (PubMed:24019521).
Subunit Structure: Monomer; does not require oligomerization for channel activity (PubMed:11524016). May form oligomers in the membrane (PubMed:11524016). Interacts with SLC26A3, SLC26A6 and SHANK2 (By similarity). Interacts with SLC9A3R1 and MYO6 (PubMed:12403779, PubMed:15247260, PubMed:11304524). Interacts (via C-terminus) with GOPC (via PDZ domain); this promotes CFTR internalization and thereby decreases channel activity (PubMed:11707463, PubMed:16331976). Interacts with SLC4A7 through SLC9A3R1 (PubMed:12403779). Found in a complex with MYO5B and RAB11A (PubMed:17462998). Interacts with ANO1 (PubMed:22178883). Interacts with SLC26A8 (PubMed:22121115). Interacts with AHCYL1; the interaction increases CFTR activity (By similarity). Interacts with CSE1L (PubMed:20933420).
Similarity: Binds and hydrolyzes ATP via the two cytoplasmic ABC transporter nucleotide-binding domains (PubMed:15284228). The two ATP-binding domains interact with each other, forming a head-to-tail dimer (PubMed:17036051). Normal ATPase activity requires interaction between the two domains (PubMed:15284228). The first ABC transporter nucleotide-binding domain has no ATPase activity by itself (By similarity). The PDZ-binding motif mediates interactions with GOPC and with the SLC4A7, SLC9A3R1/EBP50 complex. The R region is intrinsically disordered (PubMed:10792060, PubMed:17660831). It mediates channel activation when it is phosphorylated, but not in the absence of phosphorylation (PubMed:10792060). Belongs to the ABC transporter superfamily. ABCC family. CFTR transporter (TC 3.A.1.202) subfamily