The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Endotoxin level< 0.100 Eu/µg
% SDS-PAGE. Purity : Greater than 90% by SDS-PAGE gel and HPLC analyses.
Endotoxin level is less than 0.1 ng per µg (1EU/µg).
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Preparation and Storage
Stability and Storage
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
Cell proliferation-inducing gene 35 protein
Pigment epithelium derived factor
Pigment epithelium-derived factor
Proliferation inducing protein 35
serine (or cysteine) proteinase inhibitor, clade F (alpha-2 antiplasmin, pigment epithelium derived factor), member 1
Serpin family F member 1
Serpin peptidase inhibitor clade F member 1
serpin peptidase inhibitor, clade F (alpha-2 antiplasmin, pigment epithelium derived factor), member 1
FunctionNeurotrophic protein; induces extensive neuronal differentiation in retinoblastoma cells. Potent inhibitor of angiogenesis. As it does not undergo the S (stressed) to R (relaxed) conformational transition characteristic of active serpins, it exhibits no serine protease inhibitory activity.
Tissue specificityRetinal pigment epithelial cells and blood plasma.
Sequence similaritiesBelongs to the serpin family.
Developmental stageExpressed in quiescent cells.
DomainThe N-terminal (AA 44-121) exhibits neurite outgrowth-inducing activity. The C-terminal exposed loop (AA 382-418) is essential for serpin activity.
Post-translational modificationsThe N-terminus is blocked. Extracellular phosphorylation enhances antiangiogenic activity. N- and O-glycosylated. O-glycosylated with a core 1 or possibly core 8 glycan.
Cellular localizationSecreted. Melanosome. Enriched in stage I melanosomes.