It has been proposed that the mercurial-sensitive water transporter in mammalian erythrocytes is the anion exchanger band 3 (AE1) and/or the glucose transporter, band 4.5 (GLUT1). Using a functional assay for water channel expression in Xenopus oocytes (Zhang, R., K. A. Logee, and A. S. Verkman. 1990. J. Biol. Chem. 265:15375-15378), we compared osmotic water permeability (Pf) of oocytes injected with water, reticulocyte mRNA, AE1 mRNA, and GLUT1 mRNA. Injection of oocytes with 5-50 ng of in vitro-transcribed AE1 mRNA had no effect on Pf, but increased trans-stimulated 36Cl uptake greater than fourfold in a dinitro-disulfonic stilbene (DNDS)-inhibitable manner. Injection with 1-50 ng of in vitro-transcribed GLUT1 mRNA increased 3H-methylglucose uptake greater than 15-fold in a cytochalasin B-sensitive manner and increased Pf from (3.7 +/- 0.4) x 10(-4) cm/s (SE, n = 16, 10 degrees C) in water-injected oocytes up to (13 +/- 1) x 10(-4) cm/s (n = 18). Both the increments in sugar and water transport were inhibited by cytochalasin B (25 microM) and phloretin (0.2 mM); neither was inhibited by 0.3 mM HgCl2. In oocytes injected with 50 ng of rabbit reticulocyte mRNA, the Pf of (18 +/- 2) x 10(-4) cm/s (n = 18) was reduced to (4.0 +/- 0.6) x 10(-4) cm/s (n = 10) by HgCl2, but was not inhibited by DNDS (0.4 mM), cytochalasin B or phloretin. Coinjection of reticulocyte mRNA with antisense oligodeoxyribonucleotides against AE1 or GLUT1 did not affect Pf, but inhibited completely the incremental uptake of 36Cl or 3H-methylglucose, respectively. Expression of size-fractionated mRNA from reticulocyte gave a 2-2.5-kb size for water channel mRNA, less than the 4-4.5-kb size for the Cl transporter. These results provide evidence that facilitated water transport in erythrocytes is mediated not by bands 3 or 4.5, but by distinct water transport protein(s).
R Zhang, S L Alper, B Thorens, A S Verkman
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The Journal of biological chemistry | 2002 |
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The Journal of biological chemistry | 2001 |
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American journal of physiology. Renal physiology | 2000 |
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Proceedings of the National Academy of Sciences | 1998 |
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Proceedings of the National Academy of Sciences | 1998 |
Evidence against a Role of Mouse, Rat, and Two Cloned Human T1 α Isoforms as a Water Channel or a Regulator of Aquaporin-type Water Channels
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American journal of respiratory cell and molecular biology | 1998 |
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AS Verkman, AN van Hoek, T Ma, A Frigeri, WR Skach, A Mitra, BK Tamarappoo, J Farinas |
American journal of physiology. Cell physiology | 1996 |
Sodium-glucose cotransporters display sodium- and phlorizin-dependent water permeability
JD Loike, S Hickman, K Kuang, M Xu, L Cao, JC Vera, SC Silverstein, J Fischbarg |
American journal of physiology. Cell physiology | 1996 |
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SG Kalko, JA Hernández, JR Grigera, J Fischbarg |
Biochimica et Biophysica Acta (BBA) - Biomembranes | 1995 |
Structure and function of kidney water channels
AS Verkman, LB Shi, A Frigeri, H Hasegawa, J Farinas, A Mitra, W Skach, D Brown, AN van Hoek, T Ma |
Kidney International | 1995 |
Progress in Cell Research
HJ Donahue, PR Brink, KJ McLeod, EL Hertzberg, CT Rubin |
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C Kushmerick, SJ Rice, GJ Baldo, HC Haspel, RT Mathias |
Experimental Eye Research | 1995 |
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AF van Lieburg, NV Knoers, PM Deen |
Pediatric Nephrology | 1995 |
Molecular Basis of Human Blood Group Antigens
JP Cartron, P Rouger |
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Transport properties of single-file pores with two conformational states
JA Hernández, J Fischbarg |
Biophysical Journal | 1994 |
The "independence principle" in the processes of water transport
JA Hernández, J Fischbarg |
Biophysical Journal | 1994 |
Molecular cloning and expression of a member of the aquaporin family with permeability to glycerol and urea in addition to water expressed at the basolateral membrane of kidney collecting duct cells
K Ishibashi, S Sasaki, K Fushimi, S Uchida, M Kuwahara, H Saito, T Furukawa, K Nakajima, Y Yamaguchi, T Gojobori |
Proceedings of the National Academy of Sciences | 1994 |
Aquaporins: water selective channels in biological membranes. Molecular structure and tissue distribution
CH van Os, PM Deen, JA Dempster |
Biochimica et Biophysica Acta (BBA) - Reviews on Biomembranes | 1994 |
Aquaporins: Water selective channels in biological membranes. Molecular structure and tissue distribution
CH van Os, PM Deen, JA Dempster |
Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression | 1994 |
Handbook of Membrane Channels
R Greger |
Handbook of Membrane Channels | 1994 |
Ultrastructure, Pharmacologic Inhibition, and Transport Selectivity of Aquaporin CHIP in Proteoliposomes
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Biochemistry | 1994 |
A 28 kDa sarcolemmal antigen in kidney principal cell basolateral membranes: relationship to orthogonal arrays and MIP26
JM Verbavatz, AN Hoek, T Ma, I Sabolic, G Valenti, MH Ellisman, DA Ausiello, AS Verkman, D Brown |
Journal of cell science | 1994 |
Cloning, functional analysis and cell localization of a kidney proximal tubule water transporter homologous to CHIP28
R Zhang, W Skach, H Hasegawa, AN van Hoek, AS Verkman |
The Journal of Cell Biology | 1993 |
Evidence that facilitative glucose transporters may fold as beta-barrels
J Fischbarg, M Cheung, F Czegledy, J Li, P Iserovich, K Kuang, J Hubbard, M Garner, OM Rosen, DW Golde |
Proceedings of the National Academy of Sciences | 1993 |
Cultured bovine corneal endothelial cells express CHIP28 water channels
M Echevarria, K Kuang, P Iserovich, J Li, GM Preston, P Agre, J Fischbarg |
American journal of physiology. Cell physiology | 1993 |
Optical measurement of osmotic water transport in cultured cells. Role of glucose transporters
M Echevarria, AS Verkman |
The Journal of General Physiology | 1992 |
A 30 kDa functional size for the erythrocyte water channel determined in situ by radiation inactivation
AN van Hoek, LH Luthjens, ML Hom, CH van Os, JA Dempster |
Biochemical and Biophysical Research Communications | 1992 |
Reconstitution of functional water channels in liposomes containing purified red cell CHIP28 protein
ML Zeidel, SV Ambudkar, BL Smith, P Agre |
Biochemistry | 1992 |
Localization of the CHIP28 water channel in rat kidney
I Sabolic, G Valenti, JM Verbavatz, AN van Hoek, AS Verkman, DA Ausiello, D Brown |
American journal of physiology. Cell physiology | 1992 |
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HW Harris |
Pediatric Nephrology | 1992 |
Appearance of Water Channels in Xenopus Oocytes Expressing Red Cell CHIP28 Protein
GM Preston, TP Carroll, WB Guggino, P Agre |
Science | 1992 |
A Multifunctional Aqueous Channel Formed by CFTR
H Hasegawa, W Skach, O Baker, MC Calayag, V Lingappa, AS Verkman |
Science | 1992 |
Functional reconstitution of the isolated erythrocyte water channel CHIP28
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The Journal of biological chemistry | 1992 |
International Review of Cytology
RA Miller |
International Review of Cytology | 1991 |