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Human NPM1 / Nucleophosmin Protein (His Tag)

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NPM1Protein Product Information
Synonym:B23, MGC104254, NPM
Protein Construction:A DNA sequence encoding the human NPM1 isoform 1 (P06748-1) N-terminal segment (Met 9-Leu 158) was expressed, with a polyhistide tag at the N-terminus.
Expressed Host:E. coli
Form & Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
NPM1Protein QC Testing
Purity:> 90 % as determined by SDS-PAGE
Endotoxin:Please contact us for more information.
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Met
Molecule Mass:The recombinant human NPM1 consisting of 161 amino acids and has a calculated molecular mass of 17.8 kDa. It migrates as an approximately 20 kDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile PBS, pH 6.0
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
NPM1Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

Nucleophosmin 1 (NPM1), also known as nucleolar phosphoprotein B23 or numatrin, is a member of the nucleoplasmin family. Nucleophosmin (NPM) is a nucleolar phosphoprotein that plays multiple roles in ribosome assembly and transport, cytoplasmic-nuclear trafficking, centrosome duplication and regulation of p53. The NPM1 gene is frequently involved in chromosomal translocation, mutation and deletion. Mutations of the NPM1 gene leading to the expression of a cytoplasmic mutant protein, NPMc+, are the most frequent genetic abnormalities found in acute myeloid leukemias. Acute myeloid leukemias (AML) with mutated NPM1 have distinct characteristics, including a significant association with a normal karyotype, involvement of different hematopoietic lineages, a specific gene-expression profile and clinically, a better response to induction therapy and a favorable prognosis. In addition, NPM1 is a crucial gene to consider in the context of the genetics and biology of cancer. NPM1 is frequently overexpressed, mutated, rearranged and deleted in human cancer. Traditionally regarded as a tumour marker and a putative proto-oncogene, it has now also been attributed with tumour-suppressor functions.

  • Chen W, et al. (2006) Nucleophosmin gene mutations in acute myeloid leukemia. Arch Pathol Lab Med. 130(11): 1687-92.
  • Naoe T, et al. (2006) Nucleophosmin: a versatile molecule associated with hematological malignancies. Cancer Sci. 97(10): 963-9.
  • Grisendi S, et al. (2006) Nucleophosmin and cancer. Nat Rev Cancer. 6(7): 493-505.
  • Falini B, et al. (2007) Acute myeloid leukemia carrying cytoplasmic/mutated nucleophosmin (NPMc+ AML): biologic and clinical features. Blood. 109(3): 874-85.
  • Meani N, et al. (2009) Role of nucleophosmin in acute myeloid leukemia. Expert Rev Anticancer Ther. 9(9): 1283-94.
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    • Human NPM1 / Nucleophosmin Protein (His Tag) SDS-PAGE