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About This Item
NACRES:
NA.41
UNSPSC Code:
12352203
Conjugate:
unconjugated
Clone:
polyclonal
Application:
IHC (p)
Citations:
5
biological source
rabbit
conjugate
unconjugated
antibody form
Ig fraction of antiserum
antibody product type
primary antibodies
clone
polyclonal
description
For In Vitro Diagnostic Use in Select Regions (See Chart)
form
buffered aqueous solution
species reactivity
human
packaging
vial of 0.1 mL concentrate (352A-74), vial of 0.5 mL concentrate (352A-75), bottle of 1.0 mL predilute (352A-77), vial of 1.0 mL concentrate (352A-76), bottle of 7.0 mL predilute (352A-78)
manufacturer/tradename
Cell Marque®
technique(s)
immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:100-1:500
control
kidney, lung adenocarcinoma
shipped in
wet ice
storage temp.
2-8°C
visualization
cytoplasmic
General description
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.
Physical form
Solution in Tris Buffer, pH 7.3-7.7, with 1% BSA and <0.1% Sodium Azide
Preparation Note
Download the IFU specific to your product lot and formatNote: This requires a keycode which can be found on your packaging or product label.
Analysis Note
![]() IVD | ![]() IVD | ![]() IVD | ![]() RUO |
Other Notes
For Technical Service please contact: 800-665-7284 or email: service@cellmarque.com
Napsin A Positive Control Slides, Product No. 352S, are available for immunohistochemistry (formalin-fixed, paraffin-embedded sections).
Legal Information
Cell Marque is a registered trademark of Merck KGaA, Darmstadt, Germany
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Storage Class
12 - Non Combustible Liquids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
监管及禁止进口产品
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Kentaro Inamura et al.
The American journal of surgical pathology, 29(5), 660-665 (2005-04-16)
Primary pulmonary adenocarcinomas with enteric differentiation (PAED) are mainly composed of tall-columnar cells that show similarity to intestinal epithelia and colorectal carcinomas. In this study, we analyzed the immunostaining profiles of 7 PAEDs in comparison with 14 metastatic colorectal carcinomas
Jaishree Jagirdar
Archives of pathology & laboratory medicine, 132(3), 384-396 (2008-03-06)
Immunohistochemistry is a very valuable and often used tool in the differential diagnosis of lung carcinomas whether primary or secondary to the lung. The most useful application is in distinguishing primary lung tumors from metastatic tumors to the lung from
Annika Dejmek et al.
Diagnostic cytopathology, 35(8), 493-497 (2007-07-20)
The purpose of this study was to test napsin A as a diagnostic marker of metastatic lung adenocarcinoma in pleural effusions, and to compare its performance with TTF-1. Napsin A and TTF-1 reactivities were determined immunohistochemically on formalin-fixed paraffin embedded
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 352A-75 | 0841683138136 |
| 352A-76 | 0841683138143 |
| 352A-78 | 0841683138167 |
| 352A-74 | 0841683138129 |
| 352A-77 | 0841683138150 |
| 352A-76-RUO | 04061836533366 |



