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Literature summary for 3.4.21.112 extracted from

  • Pullikotil, P.; Benjannet, S.; Mayne, J.; Seidah, N.G.
    The proprotein convertase SKI-1/S1P: Alternate translation and subcellular localization (2007), J. Biol. Chem., 282, 27402-27413.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information cellular stress induced by tunicamycin does not regulate the production of St-2 Homo sapiens
N-acetyl-leucinal-leucinal-norleucinal increases the level of St-1 Homo sapiens

Cloned(Commentary)

Cloned (Comment) Organism
full length SKI-1 and its H249A mutant expressed in HEK-293 cells, M19 cells, HuH7 cells and Hep-G2 cells. Wild-type SKI-1 and mutants H249A, L925A and K948A expressed in SRD-12B and CHO-K1 cells. Wild-type SKI-1 or a secretable form of St-1 containing a signal peptide followed by a FLAG tag at the N terminus and a V5 tag at the C terminus overexpressed in CHO-K1 cells. rSt-1 coexpressed with protease inhibitors in CHO-K1 and Neuro-2a cells. Mutants I985A, I989L, M990L, M990A, M990I, Y994A, N995A, and double mutant Y994A/N995A expressed in CHO-K1 cells Homo sapiens

Protein Variants

Protein Variants Comment Organism
H249A active site mutant, autocatalytic generation of St-1 is abrogated, St-2 fragment is generated at a level of ca. 15% Homo sapiens
I985A has no effect on generation of St-2 Homo sapiens
I989L results in more than 90% reduction in the generation of St-2 Homo sapiens
K948A shedding site mutant Homo sapiens
L952A shedding site mutant Homo sapiens
M990A fails to generate St-2 Homo sapiens
M990I fails to generate St-2 Homo sapiens
M990L fails to generate St-2 Homo sapiens
additional information in the triple shedding site mutant KLL/A autocatalytic generation of St-1 is abrogated, St-2 fragment is generated at a level of ca. 15% Homo sapiens
N995A has no effect on generation of St-2 Homo sapiens
Y994A has no effect on generation of St-2 Homo sapiens
Y994A/N995A has no effect on generation of St-2 Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
4-(2-aminoethyl)benzenesulfonyl fluoride hydrochloride inhibits SKI-1 and the autocatalytic generation of St-1 Homo sapiens
brefeldin A abrogates St-2 production Homo sapiens
additional information (Z-LL)2-chloromethylketone and PN1 have no effect on St-2 production. Overexpressed rSt-1 or rSt-2 impede ATF6 processing by SKI-1 Homo sapiens

Localization

Localization Comment Organism GeneOntology No. Textmining
endoplasmic reticulum St-2 production Homo sapiens 5783
-
Golgi apparatus most of membrane-bound SKI-1 and its stumps St-1 and St-2 localize to the Golgi and can enter the endosomal/lysosomal compartments but do not sort to the cell surface Homo sapiens 5794
-
membrane
-
Homo sapiens 16020
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
8500
-
St-2 protein, time-of-flight mass spectrometry Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
Hep-G2 cell
-
Homo sapiens
-
Huh-7 cell
-
Homo sapiens
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATF6 precursor + H2O rSt-1 and rSt-2 seem to affect the processing of ATF6 by SKI-1 Homo sapiens nuclear ATF6
-
?

Synonyms

Synonyms Comment Organism
S1P
-
Homo sapiens
SKI-1
-
Homo sapiens
SKI-1/S1P
-
Homo sapiens
subtilisin kexin isozyme-1
-
Homo sapiens