Immunolocalization and tissue-specific splicing of AE2 anion exchanger in mouse kidney.
نویسندگان
چکیده
منابع مشابه
Immunolocalization of AE2 anion exchanger in rat kidney.
The cellular and subcellular localizations of the AE2 anion exchanger in rat kidney have remained elusive despite detection of moderately abundant AE2 mRNA and AE2 polypeptide in all kidney regions. In this report a simple epitope unmasking technique has allowed the immunolocalization of AE2 antigenic sites in basolateral membranes of several rat kidney tubular epithelial cells. AE2 immunostain...
متن کاملExpression of AE2 anion exchanger in mouse intestine.
We have characterized expression of anion exchanger 2 (AE2) mRNA and protein in the mouse intestine. AE2 mRNA abundance was higher in colon than in more proximal segments. AE2a mRNA was more abundant than AE2b mRNA throughout the intestine, and AE2c mRNA was expressed at very low levels. This AE2 mRNA pattern contrasted with that in mouse stomach, in which AE2c > AE2b > AE2a. AE2 polypeptide ab...
متن کاملImmunolocalization of anion exchanger AE2 and Na(+)-HCO(-)(3) cotransporter in rat parotid and submandibular glands.
Salivary glands secrete K(+) and HCO(-)(3) and reabsorb Na(+) and Cl(-), but the identity of transporters involved in HCO(-)(3) transport remains unclear. We investigated localization of Cl(-)/HCO(-)(3) exchanger isoform AE2 and of Na(+)-HCO(-)(3) cotransporter (NBC) in rat parotid gland (PAR) and submandibular gland (SMG) by immunoblot and immunocytochemical techniques. Immunoblotting of PAR a...
متن کاملTissue-specific N-terminal isoforms from overlapping alternate promoters of the human AE2 anion exchanger gene.
Previously, we isolated the human AE2 (SLC4A2) gene, a member of the sodium-independent anion exchanger family. Rat ortholog of this gene was reported to drive alternative transcription yielding N-terminal variants of the AE2a message. We thus analyzed the human AE2 gene in this regard. Using HepG2 cells, two alternative first exons, each splicing to exon 3 in alternative transcripts, were foun...
متن کاملImmunolocalization of anion transporter Slc26a7 in mouse kidney.
Previous studies have indicated that a major fraction of the filtered Cl(-) is reabsorbed via apical membrane Cl(-)/base exchange in the proximal tubule. Recent studies in Slc26a6 null mice have suggested that this transporter mediates only a portion of proximal tubule Cl(-)/base exchange, raising the possibility that one or more unidentified apical membrane transporters may additionally contri...
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ژورنال
عنوان ژورنال: Journal of the American Society of Nephrology
سال: 1998
ISSN: 1046-6673,1533-3450
DOI: 10.1681/asn.v96946