Nucleophosmin Antibody / NPM1

• Catalog Number: orb2642224
• Category: Antibodies
• Description: Recognizes a 33kDa glycoprotein, identified as Nucleophosmin (NPM). It is predominantly localized in the nucleus of cells in most tissues. NPM is involved in ribosomal assembly and rRNA transport. It is an abundant protein that is highly phosphorylated by Cdc2 kinase during mitosis. This phosphoprotein moves between the nucleus and the cytoplasm. It is thought to be involved in several processes including regulation of the ARF/p53 pathway. A number of genes are fusion partners, in particular the anaplastic lymphoma kinase gene on chromosome 2. Mutations in exon 12 affecting the C-terminus of the protein are associated with an aberrant cytoplasmic location. Mutations in this gene are associated with acute myeloid leukemia. The antibody may be a useful aid for classification of acute myeloid leukemia.
• Species/Host: Mouse
• Clonality: Monoclonal
• Clone Number: NPM1/1902
• Tested applications: ELISA, IF, IHC-P, WB
• Reactivity: Human
• Isotype: Mouse IgG2b, kappa
• Immunogen: A portion of amino acids 185-287 from the human protein was used as the immunogen for the Nucleophosmin antibody.
• Antibody Type: Primary Antibody
• Dilution range: ELISA: 2-4ug/ml (order BSA/azide-free format),Western blot: 1-2ug/ml,Immunohistochemistry (FFPE): 1-2ug/ml for 30 min at RT,Immunofluorescence: 1-2ug/ml
• Purity: Protein G affinity chromatography
• Conjugation: Unconjugated
• Formula: 0.2 mg/ml in 1X PBS with 0.1 mg/ml BSA (US sourced) and 0.05% sodium azide
• Hazard Information: This Nucleophosmin antibody is available for research use only.
• UniProt ID: P06748
• Storage: Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
• Buffer/Preservatives: 0.2 mg/ml in 1X PBS with 0.1 mg/ml rAlbumin (US sourced) and 0.05% sodium azide
• Note: For research use only
• Application notes: Optimal dilution of the Nucleophosmin antibody should be determined by the researcher.1. The prediluted format is supplied in a dropper bottle and is optimized for use in IHC. After epitope retrieval step (if required), drip mAb solution onto the tissue section and incubate at RT for 30 min.
• Expiration Date: 12 months from date of receipt.

IHC staining of FFPE human colon carcinoma with Nucleophosmin antibody. HIER: boil tissue sections in pH6, 10 mM citrate buffer, for 10-20 min and allow to cool before testing.

IHC staining of FFPE human skin with Nucleophosmin antibody. HIER: boil tissue sections in pH6, 10 mM citrate buffer, for 10-20 min and allow to cool before testing.

Western blot testing of human A431 cell lysate with Nucleophosmin antibody. Expected molecular weight ~38 kDa.

Western blot testing of human 1) MCF7 and 2) A431 cell lysate with Nucleophosmin antibody. Expected molecular weight ~38 kDa.

Analysis of HuProt (TM) microarray containing more than 19000 full-length human proteins using Nucleophosmin antibody. These results demonstrate the foremost specificity of the NPM1/1902 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.

Western blot testing of human K562 cell lysate with Nucleophosmin antibody. Expected molecular weight ~38 kDa.

Immunofluorescent staining of fixed human HeLa cells with Nucleophosmin antibody (clone NPM1/1902, green) and Reddot nuclear stain (red).