Napsin A (polyclonal)

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DIAGNOSTICS F. Hoffmann-La Roche Ltd

Napsin A (polyclonal)

Napsin A (polyclonal)
Catalog Number:760-4446
Ordering Code:05973805001
Quantity:50 tests
Controls:Lung Adenocarcinoma
Isotypes:IgG
Clone Name:Polyclonal
Species:Rabbit
Localization:Cytoplasmic
Regulatory Status:IVD


Napsin is a pepsin-like aspartic proteinase, in the A1 clan of the AA clade of proteinases. There are two closely related napsins, napsin A and napsin B. Napsin A is expressed as a single chain protein with the molecular weight of approximately 38 kDa. Immunohistochemical studies revealed high expression levels of napsin A in human lung and kidney but low expression in spleen. Napsin A is expressed in type II pneumocytes and in adenocarcinomas of lung. The high specificity expression of napsin A in adenocarcinomas of lung is useful to distinguish primary lung adenocarcinomas from adenocarcinomas of other organs.


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