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Literature summary for 1.13.12.24 extracted from

  • Zeinoddini, M.; Fathi-Roudsari, M.; Hosseinkhani, S.; Khajeh, K.
    Bioluminescence and kinetic aspects of double mutated aequorin variants (2018), Int. J. Biol. Macromol., 112, 163-168 .
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli BL-21(DE3) Aequorea victoria

Protein Variants

Protein Variants Comment Organism
D153G shift of maximum luminescence to shorter wavelengths. t1/2 is decreased with respect to the half-life time of the native protein (0.7 s). Mutation results in a significant decrease in stability at 65°C Aequorea victoria
W86F shift of maximum luminescence to shorter wavelengths. The single mutant reaches the highest stability against thermal shock Aequorea victoria
W86F/D153G decreased t1/2-value. Maximum emission spectrum at 401 nm. Mutation results in a significant decrease in stability at 65°C Aequorea victoria
Y82F mutation shifts the peak towards longer wavelengths. Increased half time of initial light by 3.6 s. Mutation results in a significant decrease in stability at 65°C Aequorea victoria
Y82F/D153G decreased t1/2-value. Maximum emission spectrum at 478 nm Aequorea victoria
Y82F/W86F maximum emission spectrum at 400 nm. Y82F mutation results in shift of emission to longer wavelength, while the W86F mutation shifts the emission to shorter wavelengths. Compared to wild type aequorin, the Y82F/W86F variant displays a 2fold increase of light half-life. Mutation results in a significant decrease in stability at 65°C Aequorea victoria

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ calcium-regulated photoprotein Aequorea victoria

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
26000
-
SDS-PAGE Aequorea victoria

Organism

Organism UniProt Comment Textmining
Aequorea victoria P02592
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Aequorea victoria

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
[apoaequorin] + coelenterazine + O2 + 3 Ca2+ flash type light emission Aequorea victoria [excited state blue fluorescent protein] + CO2
-
?

Subunits

Subunits Comment Organism
? x * 26000, SDS-PAGE Aequorea victoria