The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Additional notesProtein concentration is above or equal to 0.05 mg/ml. Best used within three months from the date of receipt.
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Preparation and Storage
Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
pH: 8.00 Constituents: 0.3% Glutathione, 0.79% Tris HCl
Paired basic amino acid cleaving enzyme 4
Paired basic amino acid cleaving system 4
Proprotein convertase subtilisin/kexin type 6
Subtilisin like protease
Subtilisin-like proprotein convertase 4
subtilisin/kexin like protease PACE4
Subtilisin/kexin-like protease PACE4
FunctionLikely to represent an endoprotease activity within the constitutive secretory pathway, with unique restricted distribution in both neuroendocrine and non-neuroendocrine tissues and capable of cleavage at the RX(K/R)R consensus motif.
Tissue specificityEach PACE4 isoform exhibits a unique restricted distribution. Isoform PACE4A-I is expressed in heart, brain, placenta, lung, skeletal muscle, kidney, pancreas, but at comparatively higher levels in the liver. Isoform PACE4A-II is at least expressed in placenta. Isoform PACE4B was only found in the embryonic kidney cell line from which it was isolated. Isoform PACE4C and isoform PACE4D are expressed in placenta. Isoform PACE4E-I is expressed in cerebellum, placenta and pituitary. Isoform PACE4E-II is at least present in cerebellum.
Sequence similaritiesBelongs to the peptidase S8 family. Contains 1 homo B/P domain. Contains 1 PLAC domain.
DomainThe propeptide domain acts as an intramolecular chaperone assisting the folding of the zymogen within the endoplasmic reticulum. Isoform PACE4D lacks the propeptide domain.
Cellular localizationSecreted; Endomembrane system. Retained intracellularly probably through a hydrophobic cluster in their C-terminus and Endoplasmic reticulum. Not secreted, remains probably in zymogen form in endoplasmic reticulum.