L4021
Prolactin human
recombinant, expressed in E. coli, lyophilized powder, BioReagent, suitable for cell culture, >97% (SDS-PAGE)
Synonym(s):
hPRL, LTH, Lactogenic Hormone, Luteotropic Hormone, PRL
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About This Item
Biological source:
Escherichia coli
Form:
lyophilized powder
Assay:
>97% (SDS-PAGE)
biological source
Escherichia coli
Quality Level
recombinant
expressed in E. coli
description
200 amino acid residue methionyl form of mature, recombinant human prolactin (amino acid residues 29-227).
product line
BioReagent
assay
>97% (SDS-PAGE)
form
lyophilized powder
potency
0.030-0.300 ng/mL EC50
mol wt
predicted mol wt ~24 kDa
technique(s)
cell culture | mammalian: suitable
impurities
endotoxin, tested
solubility
water: 0.5000 mL, clear, colorless
UniProt accession no.
shipped in
ambient
storage temp.
−20°C
Gene Information
human ... PRL(5617)
Application
Use in cell culture applications to study prolactin regulation of cell signaling and gene expression.
Biochem/physiol Actions
Neuroendocrine hormone; belongs to the cytokine hematopoietic receptor family; induces lactation; inhibits secretion of gonadotropins; release is inhibited by dopamine.
Prolactin is a neuroendocrine hormone. The prolactin receptor is a transmembrane glycoprotein that belongs to the cytokine hematopoietic receptor family. A large number of cells and organs express the receptor, including B cells, T cells, macrophages, monocytes, and neutrophils. Prolactin signal transduction involves the JAK/STAT families and the src kinase family. Induces lactation; inhibits secretion of gonadotropins; release is inhibited by dopamine.
Physical form
Lyophilized from a solution in 10 mM phosphate and 50 mM sodium chloride, pH 8.0.
Preparation Note
It is recommended that sterile 4 mM HCl containing 1 mg/mL bovine serum albumin be added to the vial to prepare a stock solution of no less than 100 μg/mL.
Analysis Note
The biological activity is assayed by proliferation of the rat lymphoma cell line, Nb2-11.
Other Notes
Contains an N-terminal methionine not present in the natural product.
signalword
Danger
hcodes
pcodes
Hazard Classifications
Repr. 1B
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Related Content
Instructions
Extrapituitary prolactin: distribution, regulation, functions, and clinical aspects.
N Ben-Jonathan et al.
Endocrine reviews, 17(6), 639-669 (1996-12-01)
Regulatory action of prolactin on the in vitro growth of CD34+ve human hemopoietic progenitor cells.
G Bellone et al.
Journal of cellular physiology, 163(2), 221-231 (1995-05-01)
The pituitary hormone prolactin (Prl) is known to act as a local regulator of immune cell function, and Prl-binding receptors (Prl-R) have been described to share distinctive features with the members of the newly described cytokine/hemopoietin receptor superfamily. Here we
Julien Auffret et al.
American journal of physiology. Endocrinology and metabolism, 305(10), E1309-E1318 (2013-09-26)
Prolactin (PRL) and placental lactogens stimulate β-cell replication and insulin production in pancreatic islets and insulinoma cells through binding to the PRL receptor (PRLR). However, the contribution of PRLR signaling to β-cell ontogeny and function in perinatal life and the