Species

Gene ID

Accession

Source

Length

MW

Tag

Human

5176

P36955

E. coli

399aa

44.4kDa

－

About this protein

Name

Recombinant Human PEDF (Recombinant Human Pigment Epithelium-derived Factor; rHuPEDF)；重组人色素上皮衍生因子

Synonyms

EPC-1; PEDF; Cell proliferation-inducing gene 35 protein; EPC-1PIG35; PEDFpigment epithelium-derived factor; pigment epithelium derived factor), member 1; proliferation-inducing protein 35; serine (or cysteine) proteinase inhibitor, clade F (alpha-2 antiplasmin; Serpin F1; serpin peptidase inhibitor, clade F (alpha-2 antiplasmin, pigment epitheliumderived factor), member 1

Purity

>97% by SDS-PAGE and HPLC analyses.

Biological Activity

Fully biologically active when compared to standard. The ED50 as determined by its ability to enhance the adhesion of human Saos2 cells to bovine Collagen I coated plate is less than 2ng/ml, corresponding to a specific activity of >5.0×10⁵IU/mg.

Physical Appearance

Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation

Lyophilized from a 0.2μm filtered concentrated solution in 20mM PB, pH7.4, 150mM NaCl.

Endotoxin

Less than 1EU/μg of rHuPEDF as determined by LAL method.

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤-20℃. Further dilutions should be made in appropriate buffered solutions.

Category

Cytokine

Background

Pigment epithelium-derived factor (PEDF) is encoded by the SERPINF1 gene in humans and found in verebrates. It is a secreted phosphoglycoprotein that belongs to the clade F subfamily, serpin superfamily of proteinase inhibitors. The PEDF is a noninhibitory serpin with neurotrophic, anti-angiogenic, and anti-tumorigenic properties. It is synthesized as a 418a.a. about 50kDa precursor that contains a 19a.a. signal sequence and a 399a.a. mature region that shows a pyroglutamate at Gln20. Like other serpins, it contains three β-sheets, 810 α-helices, and a C-terminal RCL (reactive center loop). Unlike other serpins with Ser protease inhibiting activity. PEDF has functions of inducing extensive neuronal differentiation in retinoblastoma cells, inhibiting 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. PEDF is researched as a therapeutic candidate for treatment of such conditions as choroidal neovascularization, heart disease, and cancer.

Amino Acid Sequence

QNPASPPEEG SPDPDSTGAL VEEEDPFFKV PVNKLAAAVS NFGYDLYRVR SSTSPTTNVL LSPLSVATAL SALSLGAEQR TESIIHRALY YDLISSPDIH GTYKELLDTV TAPQKNLKSA SRIVFEKKLR IKSSFVAPLE KSYGTRPRVL TGNPRLDLQE INNWVQAQMK GKLARSTKEI PDEISILLLG VAHFKGQWVT KFDSRKTSLE DFYLDEERTV RVPMMSDPKA VLRYGLDSDL SCKIAQLPLT GSMSIIFFLP LKVTQNLTLI EESLTSEFIH DIDRELKTVQ AVLTVPKLKL SYEGEVTKSL QEMKLQSLFD SPDFSKITGK PIKLTQVEHR AGFEWNEDGA GTTPSPGLQP AHLTFPLDYH LNQPFIFVLR DTDTGALLFI GKILDPRGP

产品编号

产品名称

包装

XY309-5μg

Recombinant Human PEDF

5μg

XY309-20μg

Recombinant Human PEDF

20μg

XY309-100μg

Recombinant Human PEDF

100μg

XY309-1mg

Recombinant Human PEDF

1mg

-

说明书

1份