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SRP4651

Sigma-Aldrich

PTHrP human

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

Synonym(s):

HHM, PLP, PTHLH, PTHR, PTHRP

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About This Item

MDL number:
UNSPSC Code:
51111800
NACRES:
NA.32

biological source

human

recombinant

expressed in E. coli

assay

≥98% (HPLC)
≥98% (SDS-PAGE)

form

lyophilized

mol wt

~9.8 kDa

packaging

pkg of 50 μg

storage condition

avoid repeated freeze/thaw cycles

impurities

endotoxin, tested

NCBI accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... PTHLH(5744)

General description

Parathyroid Hormone-like related Protein (PTHrP) is a member of the Parathyroid hormone family that is expressed in the mammary gland. It is known as a potent inhibitor of chondrocyte maturation. PTHrP is expressed by periarticular perichondrial cells and exerts its biological activity on PP-R expressing cells. During endochondral bone development PTHrP plays a major role in suppressing the onset of hypertrophic differentiation. It is also responsible for most cases of humoral hypercalcemia of malignancy. Recombinant Human PTHrP is a 9.8 kDa protein consisting of 86 amino acid residues.
Recombinant Human PTHrP is a 9.8 kDa protein consisting of 86 amino acid residues.

Application

The human parathyroid hormone-like related protein (PTHrP) has been used as an osteoarthritis-associated factor regulating hypertrophic differentiation of human chondrocytes. It has also been used in the regulation of the expression of Smpd3 (Sphingomyelin phosphodiesterase 3) in chondrocytes.

Biochem/physiol Actions

The gene PTHrP (parathyroid hormone-like related protein) encodes a protein involved in skeletal development. It binds to the receptor activated by PTH (parathyroid hormone) and functions in smooth muscle relaxation, regulation of cellular proliferation and differentiation. It also regulates endochondral bone development and proliferation of growth plate chondrocytes. It regulates fetal blood calcium and placental calcium transport. It has been associated with malignant hypercalcemia. Mutation in this gene has been associated with brachydactyly type E2 (BDE2).

Physical form

Sterile filtered and lyophilized without additives.

Reconstitution

Centrifuge the vial prior to opening. Avoid freeze-thaw cycles.
Reconstitute in water to a concentration of 0.1-1.0 mg/mL. This solution can then be diluted into other aqueous buffers.

wgk_germany

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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Smpd3 Expression in both Chondrocytes and Osteoblasts Is Required for Normal Endochondral Bone Development.
Li J
Molecular and Cellular Biology, 36, 2282-2299 (2016)
Jeroen C H Leijten et al.
Arthritis research & therapy, 15(5), R126-R126 (2013-11-30)
Osteoarthritis is, at least in a subset of patients, associated with hypertrophic differentiation of articular chondrocytes. Recently, we identified the bone morphogenetic protein (BMP) and wingless-type MMTV integration site (WNT) signaling antagonists Gremlin 1 (GREM1), frizzled-related protein (FRZB) and dickkopf
Exome sequencing reveals a novel PTHLH mutation in a Chinese pedigree with brachydactyly type E and short stature.
Wang J
Clinica Chimica Acta; International Journal of Clinical Chemistry, 446:9-44614 (2015)
Huiren Tao et al.
PloS one, 6(8), e23199-e23199 (2011-09-03)
p38 mitogen-activated protein kinase (MAPK) acts downstream in the signaling pathway that includes receptor activator of NF-κB (RANK), a powerful inducer of osteoclast formation and activation. We investigated the role of p38 MAPK in parathyroid hormone related protein (PTHrP)-induced osteoclastogenesis
PTHrP and skeletal development.
Kronenberg HM
Annals of the New York Academy of Sciences, 1068, 1-13 (2006)

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