Symplectoteuthis oualaniensis

The Purpleback Flying Squid Symplectoteuthis oualaniensis (Tobi-ika)... 

Fig. 6.3.6 Effects of salt concentration (left panel) and pH (right panel) on the initial light intensity emitted from the homogenate of the Symplectoteuthis oualaniensis light organ. The salt effect was tested in 50 mM Tris-HCl, pH 7.2, and the pH effect in the various buffers containing 0.5MKC1 or NaCl. From Tsuji and Leisman, 1981.

Fig. 6.3.7 Luminescence spectrum of a homogenate of the luminous organ of Symplectoteuthis oualaniensis in the presence of 0.5 M KC1 (from Tsuji and Leisman, 1981). A homogenate suspension (1 ml) and 1MKC1 (1 ml), both made with 50 mM Tris-HCl, pH 7.6, containing 1 mM dithioerythritol, were mixed and the spectrum was measured 6 min after mixing. Note that the luminescence of the photoprotein symplectin isolated from the luminous organs showed a maximum at 470—480 nm (Takahashi and Isobe, 1993, 1994).

Fujii, T., et al. (2002). A novel photoprotein from oceanic squid (Symplectoteuthis oualaniensis) with sequence similarity to mammalian carbon-nitrogen hydrolase domains. Biochem. Biophys. Res. Commun. 293 874-879. 

Takahashi, H., and Isobe, M. (1994). Photoprotein of luminous squid, Symplectoteuthis oualaniensis and reconstruction of the luminous system. Chem. Lett. 5 843-846. 

Storey, K.B. Purification and characterization of arginine kinase from the mantle muscle of the squid, Symplectoteuthis oualaniensis. Role of the phosphagen/phosphagen kinase system in a highly aerobic muscle. Arch. Biochem. Biophys., 179, 518-526 (1977)... 

R653 M. Isobe, M. Kuse, T. Fujii, H. Takahashi, K. Ohshima, H. Mori, J.-Y. Ahn and M. Tsukasa, Molecular Mechanisms of Bioluminescence of Symplectin, a Photoprotein from Okinawan Squid, Symplectoteuthis Oualaniensis L , Tennen Yuki Kagobutsu Toronkai Koen Yoshishu, 2000, 42, 97... 

Tsuji FI, Leisman G. K /Na -triggered bioluminescence in the oceanic squid Symplectoteuthis oualaniensis. Proc Natl Acad Sci USA 1981 78 6719-23. 

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