Napsin A Antibody

• Catalog Number: orb699806
• Category: Antibodies
• Description: Napsin is a pepsin-like aspartic proteinase connected with maturation of surfactant protein B.There are two closely related napsins, napsin A and napsin B. Napsin A is expressed as a single chain protein. 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.
• Species/Host: Rabbit
• Clonality: Recombinant
• Clone Number: NAPSA/4400R
• Tested applications: IHC-P
• Reactivity: Human
• Isotype: Rabbit IgG
• Immunogen: A portion of amino acids 50-150 from the human protein was used as the immunogen for the recombinant Napsin A antibody.
• Dilution range: Immunohistochemistry (FFPE): 1-2ug/ml for 30 minutes at RT
• Purity: Protein A affinity chromatography
• Conjugation: Unconjugated
• Formula: 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced), 0.05% sodium azide
• Hazard Information: This recombinant Napsin A antibody is available for research use only.
• UniProt ID: O96009
• Storage: Store the recombinant Napsin A antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide).
• Buffer/Preservatives: 0.2 mg/ml in 1X PBS with 0.1 mg/ml rAlbumin (US sourced), 0.05% sodium azide
• Note: For research use only
• Application notes: Optimal dilution of the recombinant Napsin A antibody should be determined by the researcher.
• Expiration Date: 12 months from date of receipt.

IHC staining of FFPE human lung adenocarcinoma with recombinant Napsin A antibody (clone NAPSA/4400R). HIER: boil tissue sections in pH 9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.

IHC staining of FFPE human lung adenocarcinoma with recombinant Napsin A antibody (clone NAPSA/4400R). HIER: boil tissue sections in pH 9 10mM Tris with 1mM EDTA for 20 min and allow to cool before testing.

Analysis of HuProt (TM) microarray containing more than 19000 full-length human proteins using recombinant Napsin A antibody (clone NAPSA/4400R). These results demonstrate the foremost specificity of the NAPSA/4400R mAb. Z- and S- score: The Z-score represents the strength of a signal that an antibody (in combination with a fluorescently-tagged anti-IgG secondary Ab) produces when binding to a particular protein on the HuProt (TM) array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If the targets on the HuProt (TM) are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-scores. The S-score therefore represents the relative target specificity of an Ab to its intended target.