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Your Position: Home > Cytokines > Prolactin > Human Prolactin / PRL Protein, Mouse IgG2a Fc Tag, low endotoxin

Human Prolactin / PRL Protein, Mouse IgG2a Fc Tag, low endotoxin

INTRODUCTION

QC & Assay Protocol

Citation & Background

Synonym
PRL,Prolactin
Source
Human Prolactin, Mouse IgG2a Fc Tag, low endotoxin (PRN-H5257) is expressed from human 293 cells (HEK293). It contains AA Leu 29 - Cys 227 (Accession # Q5THQ0-1).
Predicted N-terminus: Leu 29
Request for sequence
Molecular Characterization
This protein carries a mouse IgG2a Fc tag at the C-terminus.
The protein has a calculated MW of 49.8 kDa. The protein migrates as 50-55 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Endotoxin
Less than 0.1 EU per μg by the LAL method.
Purity
>95% as determined by SDS-PAGE.

Formulation
Lyophilized from 0.22 μm filtered solution in Tris with Glycine, Arginine and NaCl, pH7.5. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
No activity loss was observed after storage at:
1. 4-8^°C for 12 months in lyophilized state;
2. -70^°C for 3 months under sterile conditions after reconstitution.

SDS-PAGE

Human Prolactin, Mouse IgG2a Fc Tag, low endotoxin on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

Bioactivity-ELISA

Human Prolactin, Mouse IgG2a Fc Tag, low endotoxin Human Prolactin, Mouse IgG2a Fc Tag, low endotoxin (Cat. No. PRN-H5257) ELISA bioactivity

Immobilized Human Prolactin, Mouse IgG2a Fc Tag, low endotoxin (Cat. No. PRN-H5257) at 1 μg/mL (100 μL/well) can bind Human Prolactin R, Fc Tag (Cat. No. PRP-H5251) with a linear range of 2-39 ng/mL (QC tested).

Protocol

Background
Prolactin (gene name PRL) is a secreted neuroendocrine pituitary hormone that acts primarily on the mammary gland to promote lactation, but has pleiotropic effects in both males and females. Prolactin is synthesized as a prohormone. Following cleavage of the signal peptide, the length of the mature hormone is between 194 and 199 amino acids, depending on species. Hormone structure is stabilized by three intramolecular disulfide bonds. Excessive secretion of prolactin - hyperprolactinemia - is a relative common disorder in humans. This condition has numerous causes, including prolactin-secreting tumors and therapy with certain drugs. The prolactin receptor (gene name PRLR) is a transmembrane type I glycoprotein that belongs to the cytokine hematopoietic receptor family. Expression of the prolactin receptor is widespread. Each prolactin molecule is thought to bind two receptor molecules
References
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.