PSD64TF, a high-expression vector based on pGEM (Promega, Madison, WI) containing 60 bp of the 5'-untranslated region (UTR) of Xenopus -beta globin and 300 bp of the 3'-UTR.
From ajprenal.physiology.org/cgi/content/full/283/1/F142
OR
PSD64TF, a modified version of pSP64 (Promega, Madison, WI, USA)
From FEBS Lett. 2003 Aug 14;549(1-3):67-71. DHP-insensitive L-type-like Ca channel of ascidian acquires sensitivity to DHP with single amino acid change in domain III P-region. Izumi-Nakaseko H, Yamaguchi S, Ohtsuka Y, Ebihara T, Adachi-Akahane S, Okamura
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