Type

Recombinant

Description

Prolactin is a neuroendocrine hormone secreted by the pituitary gland. Its primary function is to promote and maintain lactation during pregnancy and suckling. In addition, prolactin plays an immunoegulatory role by stimulating the activities of ornithine decarboxylase and protein kinase C, which are important for the proliferation, differentiation, and function of lymphocytes. Recombinant Rat Prolactin is a 22.6 kDa globular protein containing 198 amino acid residues.

Amino Acid Sequence

MLPVCSGGDCQTPLPELFDRVVMLSHYIHTLYTDMFIEFDKQYVQDREFIAKAINDCPTSSLATPEDKEQAQKVPPEVLLNLILSLVHSWNDPLFQLITGLGGIHEAPDAIISRAKEIEEQNKRLLEGIEKIISQAYPEAKGNEIYLVWSQLPSLQGVDEESKDLAFYNNIRCLRRDSHKVDNYLKFLRCQIVHKNNC

Source

E. coli

Purity

98%

Biological Activity

Determined by its ability to induce the proliferation of rat Nb2–11 cells in the concentration range of 0.1–1.0 ng/ml.

Endotoxin

Endotoxin level is <0.1 ng/μg of protein (<1EU/μg).

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1–1.0 mg/ml. Do not vortex. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at –20°C to –80°C.

Storage/Expiration

 –20°C