1 mg/ml(The concentration of this product may be batch-dependent)
Lot Concentration Lookup
Storage Instructions
Store at 2-8℃. Avoid freeze.
Storage Buffer
PBS (pH7.4).
Isotype
IgG
Purification Method
Protein A affinity purified.
Application Dilution
ELISA(Cap)
Use at an assay dependent concentration. Can be paired for Sandwich ELISA with Rabbit monoclonal [PSH03-14] to Human Prolactin (Detector) (HA721942) and recombinant standard Human Prolactin (HA210676) as the standard. The reference range value is 61.73-5,000 pg/mL.
Target
Function
Prolactin (PRL), also known as lactotropin and mammotropin, is a protein best known for its role in enabling mammals to produce milk. It is influential in over 300 separate processes in various vertebrates, including humans. Prolactin is secreted from the pituitary gland in response to eating, mating, estrogen treatment, ovulation and nursing. It is secreted heavily in pulses in between these events. Prolactin plays an essential role in metabolism, regulation of the immune system and pancreatic development. Prolactin has a wide variety of effects. It stimulates the mammary glands to produce milk (lactation): increased serum concentrations of prolactin during pregnancy cause enlargement of the mammary glands and prepare for milk production, which normally starts when levels of progesterone fall by the end of pregnancy and a suckling stimulus is present. Prolactin plays an important role in maternal behavior.
Background References
1. Schuler LA et al. Prolactin: The Third Hormone in Breast Cancer. Front Endocrinol (Lausanne). 2022 Jun
2. Szewczyk AK et al. Prolactin and oxytocin: potential targets for migraine treatment. J Headache Pain. 2023 Mar
Sandwich ELISA analysis of human Prolactin matched pair antibodies
Elisa assay was performed by coating wells of a 96-well plate with 100 µl per well of capture antibody (HA721941) diluted in carbonate/bicarbonate buffer, at a concentration of 2 µg/mL overnight at 4℃. Wells of the plate were washed, blocked with 150 µl 0.05% tween-20 1%BSA blocking buffer, and incubated with serial diluted Prolactin protein starting from 5000 pg/ml to 0 pg/ml and detect antibody (HA721942)-Biotin (0.2 µg/ml) for 1 hour at 30℃ with shaking. Then the plate was washed and incubated with 100 µl per well of SA-HRP for 0.5 hour at 30℃ with shaking. Detection was performed using an Ultra TMB Substrate for 10 minutes at room temperature in the dark. The reaction was stopped with sulfuric acid and absorbances were read on a spectrophotometer at 450 nm.
The concentrations of Prolactin were interpolated from the Prolactin standard curves and corrected for sample dilution.The Prolactin concentration was determined to be 6,297 pg/mL in serum 20%, 6,367 pg/ml in serum 10%, 5,913 pg/ml in serum 5%, 7,660 pg/ml in serum 2.5%. The mean Prolactin concentration was determined to be 6,559 pg/ml in mixed serum from twenty volunteers.
The concentrations of Prolactin were interpolated from the Prolactin standard curves and corrected for sample dilution.The mean Prolactin concentration was determined to be 2,995 pg/ml in Daudi extract.
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