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预期应用
ELISA法定量测定大鼠血清、血浆或其它相关液体中NGB含量。
实验原理
本试剂盒应用双抗体夹心酶标免疫分析法测定标本中NGB水平。用纯化的抗体包被微孔板，制成固相抗体，往包被单抗的微孔中依次加入NGB抗原、生物素化的抗大鼠NGB抗体、HRP标记的亲和素，经过彻底洗涤后用底物TMB显色。TMB在过氧化物酶的催化下转化成蓝色，并在酸的作用下转化成最终的黄色。颜色的深浅和样品中的NGB呈正相关。用酶标仪在450nm波长下测定吸光度（OD值），计算样品浓度。
Intended use
This immunoassay kit allows for the specific measurement of rat NGB concentrations in cell culture supernates, serum, and plasma.
Introduction
Neuroglobin (NGB) is a newly discovered member of the hemoglobin superfamily that is primarily expressed in the brain of humans and other vertebrates. It is an O2-binding protein localized to cerebral neurons of vertebrates, including humans. Its physiological role is unknown but, like hemoglobin, myoglobin, and cytoglobin/histoglobin, it may transport O2, detoxify reactive oxygen species, or serve as a hypoxia sensor.
Test principle
This assay employs the quantitative sandwich enzyme immunoassay technique. A monoclonal antibody specific for NGB has been pre-coated onto a microplate. Standards and samples are pipetted into the wells and any NGB present is bound by the immobilized antibody. An enzyme-linked monoclonal antibody specific for NGB is added to the wells. Following a wash to remove any unbound antibody-enzyme reagent, a substrate solution is added to the wells and color develops in proportion to the amount of NGB bound in the initial step. The color development is stopped and the intensity of the color is measured.
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