Organism
Sthenoteuthis oualaniensis
Function
Monovalent ion-dependent bioluminescence photoprotein. Displays an emission peak at 470 nm (blue light). Trace amounts of monovalent ion trigger the intramolecular oxidation of the chromophore, didehydrocoelenterazine, with the emission of light.
Similarity
Belongs to the carbon-nitrogen hydrolase superfamily. BTD/VNN family.
Sequence
YVRPVSSWKVAVFEHQVIPPKTDMETREEALDALKLNSDVYHEAVLESRSKGVKMIVFPEYGLYDINTLTRTRMDLMAEKVPHPKHGHRNPCDEPEYQTQSSEMLRTFSCMAKENDMYMVVNMAGREPCRRATEPECPGDKQLLYNTNVAFNNEGDVVARYYKTHLFWEEGWFNSSKNYEMALWDTPIGKFGTFMCFDFQAVQLIEQYNVRHIAYPASWVNLPPIYQSIQSHSAFARFAKINLLAASVHRLETSTYGSGIYSPNGAEIFYFRPDIPKSKLLVAEILPIHVKKPEQTVVNFDNPVFPSEDDDVQDLFDRGDFAFLKYKRMTTRAGTVEVCQKSFCCKARYAVKDRFKEVYAVGVYDGLLSAGANNLYFQICTVIQCPHKKCGLKISKVRTHFKYLNLRADGWLDRYVFPSYTVMYNNYIALDPFVWNYTEAGGIETKPGTSTPLHSANLVARIYAKDSSKHVHQSHPIDEGVIKMAVKYMLYVMAAYVYAAS