SRP3143

Pleiotrophin human

recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

• Synonym(s): Heparin Affin Regulatory Protein (HARP), Heparin-binding growth factor-8(HBGF-8), Osteoblast-Specific Factor-1 (OSF-1), PTN
• NACRES: NA.32
• UNSPSC Code: 12352202

Properties

• biological source: human
• recombinant: expressed in E. coli
• assay: ≥98% (HPLC), ≥98% (SDS-PAGE)
• form: lyophilized
• mol wt: 15.4 kDa
• packaging: pkg of 20 μg
• technique(s): cell culture | mammalian: suitable
• impurities: <0.1 EU/μg endotoxin, tested
• color: white
• UniProt accession no.: P21246
• shipped in: wet ice
• storage temp.: −20°C
• Gene Information: human ... PTN(5764)

Description

General description

PTN (pleiotrophin) is a 136-residue, platelet-derived growth factor (PDGF)-inducible, heparin-binding cytokine. It shares ~50% similarity with midkine, a retinoic acid-inducible factor. It is expressed in a tissue and stage dependent manner during development, but in adults, this protein is expressed constitutively, though in a restricted tissue pattern.[1] PTN is a low molecular weight protein composed of two domains linked by disulfide bridges, with three antiparallel β-sheets in each domain.[2] This gene is localized to human chromosome 7q33-q34. Recombinant human Pleiotrophin is a 15.4 kDa protein containing 136 amino acid residues and five intra-molecular disulfide bonds.

Biochem/physiol Actions

PTN (pleiotrophin) is a ligand for receptor protein tyrosine phosphatase (RPTP) β/ζ, and binds with it and inhibits its catalytic capabilities in a “ligand-dependent receptor inactivation”-mechanism, and promotes tyrosine phosphorylation of β-catenin. It acts as a mitogen for fibroblasts, endothelial cells, epithelial cells, and trophoblasts. It promotes neurite outgrowth and glial process outgrowth from neurons and glial progenitor cells, respectively. This protein functions as a protooncogene, and is up-regulated in multiple types of tumors, where it promotes tumor angiogenesis and progression.[1] This protein functions as a crucial mitogen during nerve, bone, vascular, and tumor growth, and has been found to be up-regulated in macrodactyly, identifying it as a candidate gene for macrodactyly.[3]

Physical form

Lyophilized from 10 mM sodium phosphate, pH 7.5.

Preparation Note

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Other Notes

GKKEKPEKKV KKSDCGEWQW SVCVPTSGDC GLGTREGTRT GAECKQTMKT QRCKIPCNWK KQFGAECKYQ FQAWGECDLN TALKTRTGSL KRALHNAECQ KTVTISKPCG KLTKPKPQAE SKKKKKEGKK QEKMLD

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 13 - Non Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable