Molecular weight (DA)
84kD
Immunogen
Synthesized peptide derived from the C-terminal region of human DRA.
Specificity
DRA Polyclonal Antibody detects endogenous levels of DRA protein.
Formulation
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Dilution rate
Western Blot: 1/500 - 1/2000. ELISA: 1/20000. Not yet tested in other applications.
Purification process (Immunogen)
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Background
The protein encoded by this gene is a transmembrane glycoprotein that transports chloride ions across the cell membrane in exchange for bicarbonate ions. It is localized to the mucosa of the lower intestinal tract, particularly to the apical membrane of columnar epithelium and some goblet cells. The protein is essential for intestinal chloride absorption, and mutations in this gene have been associated with congenital chloride diarrhea. [provided by RefSeq, Oct 2008],
Function
developmental stage:Expression is significantly decreased in adenomas (polyps) and adenocarcinomas of the colon.,disease:Defects in SLC26A3 are the cause of congenital chloride diarrhea (CLD) [MIM:214700]. CLD is a disease characterized by voluminous watery stools containing an excess of chloride. The children with this disease are often premature.,function:Chloride/bicarbonate exchanger. Involved in absorbtion of in the colon. Helps mediate electrolyte and fluid absorption.,PTM:Phosphorylated upon DNA damage, probably by ATM or ATR.,similarity:Belongs to the SLC26A/SulP transporter (TC 2.A.53) family.,similarity:Contains 1 STAS domain.,subunit:Interacts with PDZK1.,
Protein name
Chloride anion exchanger
Other name
SLC26A3; DRA; Chloride anion exchanger; Down-regulated in adenoma; Protein DRA; Solute carrier family 26 member 3
Fields
>>Pancreatic secretion;>>Mineral absorption
Human protein sequence Database
P40879
Mouse protein sequence database
Q9WVC8
Rat protein sequence database
Q924C9
Cellular localization
Apical cell membrane ; Multi-pass membrane protein . Membrane ; Multi-pass membrane protein . Localized in sperm membranes. Midpiece of sperm tail. Colocalizes with CFTR at the midpiece of sperm tail (By similarity). .
Tissue expression
Colon,Lung,Rectum tumor,