Membrane integration and topology of the first transmembrane segment in normal and Southeast Asian ovalocytosis human erythrocyte anion exchanger 1

2005 ◽  
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Reinhart A. F. Reithmeier
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Nunghathai Sawasdee ◽  
Wandee Udomchaiprasertkul ◽  
Sansanee Noisakran ◽  
Nanyawan Rungroj ◽  
Varaporn Akkarapatumwong ◽  
...  

2010 ◽  
Vol 397 (1) ◽  
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Tomohiro Yamaguchi ◽  
Yohei Ikeda ◽  
Yoshito Abe ◽  
Hiroyuki Kuma ◽  
Dongchon Kang ◽  
...  

PEDIATRICS ◽  
2003 ◽  
Vol 112 (6) ◽  
pp. 1361-1367 ◽  
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L. Cheidde ◽  
T. C. Vieira ◽  
P. R. M. Lima ◽  
S. T. O. Saad ◽  
I. P. Heilberg

1989 ◽  
Vol 264 (16) ◽  
pp. 9665-9672 ◽  
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L Davis ◽  
S E Lux ◽  
V Bennett

1999 ◽  
Vol 277 (6) ◽  
pp. F841-F849 ◽  
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Saskia Huber ◽  
Esther Asan ◽  
Thomas Jöns ◽  
Christiane Kerscher ◽  
Bernd Püschel ◽  
...  

By enzyme-linked in situ hybridization (ISH), direct evidence is provided that acid-secreting intercalated cells (type A IC) of both the cortical and medullary collecting ducts of the rat kidney selectively express the mRNA of the kidney splice variant of anion exchanger 1 (kAE1) and no detectable levels of the erythrocyte AE1 (eAE1) mRNA. Using single-cell quantification by microphotometry of ISH enzyme reaction, medullary type A IC were found to contain twofold higher kAE1 mRNA levels compared with cortical type A IC. These differences correspond to the higher intensity of immunostaining in medullary versus cortical type A IC. Chronic changes of acid-base status induced by addition of NH4Cl (acidosis) or NaHCO3 (alkalosis) to the drinking water resulted in up to 35% changes of kAE1 mRNA levels in both cortical and medullary type A IC. These experiments provide direct evidence at the cellular level of kAE1 expression in type A IC and show moderate capacity of type A IC to respond to changes of acid-base status by modulation of kAE1 mRNA levels.


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