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
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About This Item
UNSPSC Code:
12352202
NACRES:
NA.32
Recommended Products
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.
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... PTN(5764)
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. PTN is a low molecular weight protein composed of two domains linked by disulfide bridges, with three antiparallel β-sheets in each domain. 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. 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.
Sequence
GKKEKPEKKV KKSDCGEWQW SVCVPTSGDC GLGTREGTRT GAECKQTMKT QRCKIPCNWK KQFGAECKYQ FQAWGECDLN TALKTRTGSL KRALHNAECQ KTVTISKPCG KLTKPKPQAE SKKKKKEGKK QEKMLD
Physical form
Lyophilized from 10 mM sodium phosphate, pH 7.5.
Reconstitution
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.
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Pleiotrophin signals increased tyrosine phosphorylation of beta beta-catenin through inactivation of the intrinsic catalytic activity of the receptor-type protein tyrosine phosphatase beta/zeta.
Meng K
Proceedings of the National Academy of Sciences of the USA, 97, 2603-2608 (2000)
Midkine and pleiotrophin in neural development and cancer
Kadomatsu K and Muramatsu T
Cancer Letters, 204, 127-143 (2004)
Takashi Muramatsu
Journal of biochemistry, 132(3), 359-371 (2002-09-03)
Midkine (MK) and pleiotrophin (PTN) are low molecular weight proteins with closely related structures. They are mainly composed of two domains held by disulfide bridges, and there are three antiparallel beta-sheets in each domain. MK and PTN promote the growth
Frank H Lau et al.
PloS one, 7(7), e40423-e40423 (2012-08-01)
Macrodactyly is a rare family of congenital disorders characterized by the diffuse enlargement of 1 or more digits. Multiple tissue types within the affected digits are involved, but skeletal patterning and gross morphological features are preserved. Not all tissues are
Thomas F Deuel et al.
Archives of biochemistry and biophysics, 397(2), 162-171 (2002-02-14)
Pleiotrophin (PTN the protein, Ptn the gene) is a 136 amino acid secreted heparin-binding cytokine that signals diverse functions, including lineage-specific differentiation of glial progenitor cells, neurite outgrowth, and angiogenesis. Pleiotrophin gene expression is found in cells in early differentiation
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