Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 2.7.11.1 extracted from

  • Ragan, T.J.; Ross, D.B.; Keshwani, M.M.; Harris, T.K.
    Expression, purification, and characterization of a structurally disordered and functional C-terminal autoinhibitory domain (AID) of the 70 kDa 40S ribosomal protein S6 kinase-1 (S6K1) (2008), Protein Expr. Purif., 57, 271-279.
    View publication on PubMedView publication on EuropePMC

Protein Variants

Protein Variants Comment Organism
DELTA1-398 the autoinhibitory domain is separately expressed and purified. Trans-addition of purified AID effectively inhibits PDK1-catalyzed T-loop phosphorylation of a catalytic kinase domain construct of S6K1 Homo sapiens
DELTA1-398/S411D/S418D/T421E/S424D expression of the autoinhibitory domain with several mutations shows that the tetraphospho-mimicking mutations in the autoinhibitory domain construct significantly decreased AID-mediated inhibition of PDK1-catalyzed T229 phosphorylation of DELTA399-502/T389E (His6-S6K1(DELTA AID)-T389E) Homo sapiens
DELTA399-502/T389E by using a mutant protein wich lacks the autoinhibitory domain (AID) and which contains a T389E mutation it is shown that the autoinhibiotry domain (AID) of S6K1 expressed separately most significantly inhibits PDK1-catalyzed T229 phosphorylation in the T-loop of the S6K1 catalytic kinase domain construct, His6-S6K1(DELTA AID)-T389E Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
auoinhibitory domain of S6K1
-
Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens P23443
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
phosphoprotein catalytic activation requires dual phosphorylation of critical residues in the conserved T-loop (T229) and hydrophobic motif (HM, T389) peptide regions of its catalytic kinase domain (residues 1-398) Homo sapiens

Purification (Commentary)

Purification (Comment) Organism
optimal bacterial expression and affinity purification of the full autoinhibitory domain (AID) of S6K1 is achieved by fusing GST to the N-terminus, growing the BL21 (DE3) strain of Escherichia coli in PG minimal medium, adding the irreversible protease inhibitors TPCK and TLCK to the lysis buffer, using the highly selective PreScission Protease to remove the GST affinity tag, and using the Superdex 75 size-exclusion column to resolve cleaved full length AID from smaller proteolyzed fragments Homo sapiens

Synonyms

Synonyms Comment Organism
S6K1
-
Homo sapiens
serine-threonine protein kinase
-
Homo sapiens