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Recombinant Ovine Placental Lactogen

Synonyms     Chorionic Somatomammotropin Hormone 1, CSH1, CS-1, hCS, PL.
Introduction     Placental Lactogen is a polypeptide hormone that is produced by the Syncytiotrophoblasts of the Placenta, also known as chorionic somatomammotropin. It has both Growth Hormone and Prolactin activities on growth, lactation, and luteal steroid production. In women, placental lactogen secretion begins soon after implantation and increases to 1 g or more a day in late pregnancy. Placental lactogen is also an insulin antagonist.
Placental Lactogen Ovine is also capable of activating human and other heterologous GH receptors but not ruminat GH receptors.
Description     Placental Lactogen Ovine Recombinant, is a single polypeptide chain containing 199 amino acids and an additional Ala at the N-terminus having a molecular mass of 23 kDa.
Placental Lactogen Recombinant is purified by proprietary chromatographic techniques.
Source     Escherichia Coli.
Physical Appearance     Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation The protein was lyophilized from a concentrated (1mg/ml) solution with 0.02-0.03% NaHCO3.
Solubility     It is recommended to reconstitute the lyophilized Placental Lactogen in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Stability     Lyophilized Placental Lactogen Ovine Recombinant although stable at room temperature for 3 weeks, should be stored desiccated below -18℃. Upon reconstitution Placental Lactogen should be stored at 4℃ between 2-7 days and for future use below -18℃.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.
Purity     Greater than 98.0% as determined by:
(a) Analysis by SEC-HPLC.
(b) Analysis by SDS-PAGE.
Amino acid sequence     The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Gln-His-Pro-Pro.
Biological Activity     Placental Lactogen Ovine is biologically active as evidenced by inducing proliferation of Nb2 cells.
Protein content     UV spectroscopy at 280 nm using the absorbency value of 0.85 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
Usage     CHI's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Cat No. Description Unit Price Order
7-01399 Recombinant Ovine Placental Lactogen 50 µg $ 103.17 
7-01400 Recombinant Ovine Placental Lactogen 200 µg $ 268.25 
7-01401 Recombinant Ovine Placental Lactogen 1 mg $ 952.38 
Ordering Information
Email:order@chiscientific.com
Tel:800.986.6008
Fax:978.897.5462
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