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Prolactin Ovine
英文名稱:Prolactin Ovine總訪問:259
國產(chǎn)/進(jìn)口:進(jìn)口半年訪問:2
產(chǎn)地/品牌:prospec產(chǎn)品類別:細(xì)胞生物學(xué)試劑
規(guī)       格:CYT-240 最后更新:2024-12-5
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Catalogue Number CYT-240
Synonyms Mammotropin, Luteotropic hormone, Luteotropin, PRL.
Introduction Prolactin is a neuroendocrine hormone synthesized primarily by the pituitary gland but also a variety of other cell types including the placenta, brain and uterus. Its primary function is to promote and maintain lactation but has also been shown to have a role in breast cancer development, regulation of reproductive function and immunoregulation.
Description Prolactin Ovine Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 199 amino acids and having a molecular mass of 23 kDa. The Prolactin n 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 0.0045mM NaHCO3.
Solubility It is recommended to reconstitute the lyophilized Prolactin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Stability Lyophilized Prolactin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Prl should be stored at 4°C between 2-7 days and for future use below -18°C.
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-Thr-Pro-Val-Cys-Pro.
Biological Activity Is fully biologically active as evidenced by inducing proliferation of Nb2 cells.
Protein content Protein quantitation was carried out by two independent methods
1. 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).

2. Analysis by RP-HPLC, using a calibrated solution of Prolactin as a Reference Standard.
References 1.Title:Prolactin Treatment Improves Engraftment and Function of Transplanted Pancreatic Islets.
Publication:Published online before print December 18, 2008, doi: 10.1210/en.2008-1318 Endocrinology April 1, 2009 vol. 150 no. 4 1646-1653 .
Link:http://endo.endojournals.org/content/150/4/1646.full

2.Title:ISLET ENDOTHELIAL CELLS AND PANCREATIC ?-CELL PROLIFERATION: STUDIES IN VITRO AND DURING PREGNANCY IN ADULT RATS.
Publication:Endocrinology. First published January 26, 2006 as doi:10.1210/en.2005-0997.
Link:http://endo.endojournals.org/content/early/2006/01/26/en.2005-0997.full.pdf

3.Title:Prolactin Treatment Improves Engraftment and Function of Transplanted Pancreatic Islets.
Publication:Endocrinology. First published ahead of print December 18, 2008 as doi:10.1210/en.2008-1318.
Link:http://endo.endojournals.org/content/early/2008/12/18/en.2008-1318.full.pdf
Usage ProSpec'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.
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