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Literature summary for 1.1.1.22 extracted from

  • Grady, G.; Thelen, A.; Albers, J.; Ju, T.; Guo, J.; Barycki, J.J.; Simpson, M.A.
    Inhibiting hexamer disassembly of human UDP-glucose dehydrogenase by photoactivated amino acid cross-linking (2016), Biochemistry, 55, 3157-3164 .
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Homo sapiens

Protein Variants

Protein Variants Comment Organism
additional information introduction of site-specific unnatural amino acids to facilitate crosslinking of monomeric subunits into predominantly obligate oligomeric species. Optimal crosslinking is achieved by encoding 4-benzoyl-L-phenylalanine at position 458, and exposing to long wavelength UV in the presence of substrate and cofactor. Purified hexameric complexes contain significant fractions of dimer and trimer (approximately 50%) along with another 10% tetramer and higher molecular mass species. Activity of the crosslinked enzyme is reduced by almost 60% relative to the uncrosslinked UGDH mutant Homo sapiens

General Stability

General Stability Organism
wild-type UGDH is relatively stable to proteolysis in the apoenzyme form but is further stabilized by addition of NADH cofactor, UDP-glucose substrate, or a combination of the two to form a ternary enzyme complex Homo sapiens

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
120000
-
gel filtration, mutant containing 4-benzoyl-L-phenylalanine at position 96 Homo sapiens
360000
-
gel filtration, mutant containing 4-benzoyl-L-phenylalanine at position 458 Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens O60701
-
-

Subunits

Subunits Comment Organism
dimer and trimer and hexamer, 2 * 60000, SDS-PAGE Homo sapiens
hexamer and dimer and trimer, 6 * 60000, SDS-PAGE Homo sapiens
trimer and dimer and hexamer, 3 * 60000, SDS-PAGE Homo sapiens