Mg2+-HCO 3 − -ATPase and carbonic anhydrase in rat intestinal mucosa

Authors :: S Suzuki
N Ozaki
Source :: Experientia. 39:872-873
Publication Year :: 1983
Publisher :: Springer Science and Business Media LLC, 1983.
Abstract: Mg2+-dependent and HCO-3-stimulated ATPase activity was highest in the brush border (microvilli) of rat duodenal mucosa compared with that of the other gastrointestinal mucosa. This ATPase may be useful to neutralize the gastric acid in the duodenal lumen. Carbonic anhydrase seems to accomplish a subsidiary role in the above reaction.