产品编号:P245-50
产品描述:Recombinant Rat Prolactin(PRL)
反应种属:
实验方法:
标记:
规格:50ug
供应商:Leinco
价格(RMB):5205.00
订购:
说明书:
Recombinant Rat Prolactin (PRL)
Purified No Carrier Protein
(Mammotropin, Luterotropic Hormone (LTH), Lutetropin)
Prod. No.: P245
Source E. coli
Pkg. Size: 1 mg, 10 µg, 50 µg
Storage: -20°C
Description
Background:
Prolactin (PRL) or Luteotropic hormone (LTH) is best known as the pituitary modulator of lactation and reproduction.1 Prolactin is a multifaceted hormone that is capable of modulating hundreds of physiological processes in adult vertebrates.2 PRL promotes proliferation, survival and migration of cancer cells acting via the prolactin receptor (PRLR).3 It also modulates maternal behavior and mediates hypothalamic pituitary adrenal axis inhibition during lactation via PRL receptors in the brain.4 Prolactin also has a number of other effects including contributing to surfactant synthesis of the fetal lungs at the end of the pregnancy and immune tolerance of the fetus by the maternal organism during pregnancy. It also decreases normal levels of sex hormones — estrogen in women and testosterone in men.5 Pituitary prolactin secretion is regulated by neuroendocrine neurons in the hypothalamus, the most important ones being the neurosecretory dopamine neurons of the arcuate nucleus, which inhibit prolactin secretion. Thyrotropin-releasing factor has a stimulatory effect on prolactin release.
Source
E. coli
Molecular Weight
The molecular weight of Recombinant Rat PRL is Mr 22.6 kDa.
State of Matter
Lyophilized
Purity
>98% by SDS Page and HPLC
Storage and Stability
The lyophilized protein should be stored desiccated at -20°C. The reconstituted protein can be stored for at least one week at 4°C. For long-term storage of the reconstituted protein, aliquot into working volumes and store at -20°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles.
Endotoxin
<1.0 EU/µg
Biological Activity
The bilogical activity of recombiant rat prolactin is determined by its ability to induce the proliferation of rat Nb2-11 cells in the concentration range of 0.1-1.0 ng/ml.
Each investigator should determine their own optimal working dilution for specific applications.
Amino Acid Sequence
MLPVCSGGDC QTPLPELFDR VVMLSHYIHT LYTDMFIEFD KQYVQDREFI AKAINDCPTS SLATPEDKEQ AQKVPPEVLL NLILSLVHSW NDPLFQLITG LGGIHEAPDA IISRAKEIEE QNKRLLEGIE KIISQAYPEA KGNEIYLVWS QLPSLQGVDE ESKDLAFYNN IRCLRRDSHK VDNYLKFLRC QIVHKNNC
References
1. Paus R et al. (2008) J Invest Dermatol.
2. Zhu Y et al. (2008) Comp Biochem Physiol A Mol Integr Physiol
3. Panina S et al. (2009) J Endocrinol
4. Neuwmann ID et al. (2008) Endocrinology
5. (2008) Mayo Clinic
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