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Literature summary for 1.14.14.17 extracted from

  • Chua, N.K.; Howe, V.; Jatana, N.; Thukral, L.; Brown, A.J.
    A conserved degron containing an amphipathic helix regulates the cholesterol-mediated turnover of human squalene monooxygenase, a rate-limiting enzyme in cholesterol synthesis (2017), J. Biol. Chem., 292, 19959-19973 .
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expression in CHO-7 cell Homo sapiens

Protein Variants

Protein Variants Comment Organism
F35A/S37A/L65A/I69A mutant displays blunted cholesterol regulation Homo sapiens
L42A mutant displays blunted cholesterol regulation Homo sapiens
additional information a 12-residue region (residues Gln-62Β–Leu-73), is required for cholesterol-mediated turnover Homo sapiens
S43A mutant displays normal cholesterol regulation Homo sapiens
V41A mutant displays normal cholesterol regulation Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens Q9UNR6
-
-

Synonyms

Synonyms Comment Organism
Erg1
-
Homo sapiens

General Information

General Information Comment Organism
metabolism enzyme undergoes cholesterol-dependent proteasomal degradation when cholesterol is in excess. The amphipathic helix within the first 100 amino acids of squalene monooxygenase attaches reversibly to the ER membrane depending on cholesterol levels. With excess, the helix is ejected and unravels, exposing a hydrophobic patch, which then serves as a degradation signal Homo sapiens