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Literature summary for 1.4.1.9 extracted from

  • Yamaguchi, H.; Kamegawa, A.; Nakata, K.; Kashiwagi, T.; Mizukoshi, T.; Fujiyoshi, Y.; Tani, K.
    Structural insights into thermostabilization of leucine dehydrogenase from its atomic structure by cryo-electron microscopy (2019), J. Struct. Biol., 205, 11-21 .
    View publication on PubMed

Crystallization (Commentary)

Crystallization (Comment) Organism
cryo-electron microscopy structures of apo and NAD+-bound LDH at 3.0 and 3.2 A resolution, respectively. A partial conformational change is triggered by the interaction between Ser147 and the nicotinamide moiety of NAD+. NAD+ binding also enhances the strength of oligomerization interfaces formed by the core domains Geobacillus stearothermophilus

Protein Variants

Protein Variants Comment Organism
A94E proportion of residual activity of A94E is 19% of that of wild type after incubation at 70 °C for 10 min Geobacillus stearothermophilus
Y127N proportion of residual activity of Y127N is 27% of that of wild type after incubation at 70 °C for 10 min Geobacillus stearothermophilus

Organism

Organism UniProt Comment Textmining
Geobacillus stearothermophilus P13154
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Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
70
-
-
Geobacillus stearothermophilus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
additional information
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non-conserved residues Ala94 Tyr127, and the C-terminal region, are crucial for oligomeric thermostability Geobacillus stearothermophilus
80
-
the residual activity of NAD+-bound form is approximately three times higher than that of the apo form after incubation at 80°C Geobacillus stearothermophilus