Strategy of landing behavior of the tree frog Hyla japonica

Author(s):  
Koushun Kamada ◽  
Ryousuke Tachibanagi ◽  
Hideki Nakagawa
Endocrinology ◽  
2007 ◽  
Vol 148 (12) ◽  
pp. 5891-5901 ◽  
Author(s):  
Yuji Ogushi ◽  
Hiroshi Mochida ◽  
Takashi Nakakura ◽  
Masakazu Suzuki ◽  
Shigeyasu Tanaka

Water movement occurs across the plasma membrane of various cells of animals, plants, and microorganisms through specialized water-channel proteins called aquaporins (AQPs). We have identified a new member of the amphibian AQP family, AQP-h2K, from the kidneys of Hyla japonica. This protein consists of 280 amino acid residues with two NPA (Asn-Pro-Ala) sequence motifs and a mercury-sensitive cysteine residue just upstream from the second NPA motif. There are two putative N-linked glycosylation sites at Asn-120 and Asn-128 and one protein kinase A phosphorylation site at Ser-262. The AQP-h2K protein was specifically expressed in the apical membrane and/or cytoplasm of principal cells in the kidney collecting ducts. After stimulation with arginine vasotocin, it was translocated from the cytoplasmic pool to the apical membrane. Phylogenetic analysis of AQP proteins from anurans and mammals identified six clusters of anuran AQPs: types 1, 2, 3, and 5 and two anuran-specific types, designated a1 and a2. The cluster AQPa2 contains Hyla AQP-h2 and AQP-h3, which are expressed in the anuran urinary bladder and ventral pelvic skin. AQP-h2K belongs to the type 2, together with mammalian (human and mouse) AQP2, suggesting that AQP-h2K is an anuran ortholog of the neurohypophysial hormone-regulated mammalian AQP2 and that the AQP2 molecule is already present in the anuran mesonephros.


2004 ◽  
Vol 199 (2) ◽  
pp. 119-126 ◽  
Author(s):  
T. Hasegawa ◽  
Y. Sugawara ◽  
M. Suzuki ◽  
S. Tanaka

2000 ◽  
Vol 17 (7) ◽  
pp. 977-982 ◽  
Author(s):  
Toshiaki Hirai ◽  
Masafumi Matsui

2011 ◽  
Vol 343 (3) ◽  
pp. 595-603 ◽  
Author(s):  
Megumi Sato ◽  
Takashi Nakakura ◽  
Yuji Ogushi ◽  
Gen Akabane ◽  
Shingo Kurabuchi ◽  
...  

1992 ◽  
Vol 14 (3) ◽  
pp. 129-142 ◽  
Author(s):  
HISAAKI IWASAWA ◽  
JUNKO FUTAGAMI

Author(s):  
Hiroaki Kawasaki ◽  
Shawichi Iwamuro ◽  
Yuta Goto ◽  
Per F. Nielsen ◽  
J. Michael Conlon
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