Nerve growth factor (NGF) is a polypeptide involved in the regulation of growth and differentiation of sympathetic and certain sensory neurons. NGF is thought to have a profound effect on the development and maintenance of sympathetic and embryonic sensory neurones. NGF activity isolated from the male mouse submaxillary gland (MSG) consists of three types of subunits, alpha, beta and gamma, which specifically interact to form a 7S, approximately 130,000-molecular weight (Mr) complex. The 7S complex contains two identical 118-amino acid beta-chains, which are solely responsible for the nerve growth-stimulating activity of NGF (1). NGF, which is expressed by inflammatory cells and effects changes that lead to increased neural responsiveness, could be a pivotal mediator in allergic rhinitis (2). The standard product used in this kit is human 2.5S NGF, which is a dimmer linking with two polypeptide chains of 120 amino acids.

15.6pg/ml-1000pg/ml

< 1pg/ml

There is no detectable cross-reactivity with other relevant proteins.

P01138

4803

143993A: Microtiter Strip, 1x96 wells 143993B: NGF Standard, 2x10ng 143993C: Anti-human NGF (Biotin), 1x130ul

USB Cat No Kit Component 143696: Avidin-Biotin-Peroxidase Complex (ABC), 1x130ul (1:100 dilution) 143697: Sample Diluent Buffer, 1x30ml 143698: Antibody Diluent Buffer, 1x12ml 143699: ABC Diluent Buffer, 1x12ml 143700: TMB Color Developing Agent, 1x10ml 143701: TMB Stop Solution, 2N H2SO4, 1x10ml

Store *143993B powder at 4°C. Once reconstituted store at 4°C for up to 12 hours or at -20°C for up to 48 hours. Store other components at 4°C. Stable for 6 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

1. Add 100ul of samples and standards and incubate the plate at 37°C for 90 min. Do not wash. 2. Add 100ul biotinylated antibody and incubate the plate at 37°C for 60 min. Wash plate 3 times with 0.01M TBS or PBS. 3. Add ABC working solution and incubate the plate at 37°C for 30min. Wash plate 5 times with 0.01M TBS or PBS. 4. Add TMB color developing agent and incubate the plate at 37°C in dark for 20-25 min. 5. Add 100ul TMB stop solution and read.