Name :
Recombinant Human Nucleophosmin/B23/NPM1 Protein (His Tag)
Biological Activity :
Background :
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 leukemia (AML) with mutated NPM1 have distinct characteristics, including a significant association with a normal karyotype, the involvement of different hematopoietic lineages, a specific gene-expression profile, and clinically, a better response to induction therapy, and a favorable prognosis. Also, 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 tumor marker and a putative proto-oncogene, it has now also been attributed with tumor-suppressor functions.
Biological Activity :
Testing in progress
Expression Host :
Human
Source :
E. coli
Tag :
Protein Accession No. :
P06748-1
NCBI Gene ID :
Synonyms :
Synonyms :
nucleophosmin (nucleolar phosphoprotein B23, numatrin)
Amino Acid Sequence :
Molecular Weight :
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.
Purity :
> 90 % as determined by SDS-PAGE
State of Matter :
Product Concentration :
Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. 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.
Endotoxin Level :
Please contact us for more information.
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.
Buffer Solution :
Lyophilized from sterile PBS, pH 6.0Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.
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.
Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Synonyms :
B23 Protein, Human; NPM Protein, Human Nucleophosmin/B23/NPM1 背景信息 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 leukemia (AML) with mutated NPM1 have distinct characteristics, including a significant association with a normal karyotype, the involvement of different hematopoietic lineages, a specific gene-expression profile, and clinically, a better response to induction therapy, and a favorable prognosis. Also, 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 tumor marker and a putative proto-oncogene, it has now also been attributed with tumor-suppressor functions.
References & Citations :
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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