NPM1 blocking peptide

NPM1 Antibody (C-term) Blocking Peptide

• Gene Names: NPM1; B23; NPM
• Synonyms: NPM1; NPM1 Antibody (C-term) Blocking Peptide; Nucleophosmin; NPM; Nucleolar phosphoprotein B23; Nucleolar protein NO38; Numatrin; NPM1 blocking peptide

• Specificity: The synthetic peptide sequence used to generate the antibody was selected from the C-term region of human NPM1. A 10 to 100 fold molar excess to antibody is recommended. Precise conditions should be optimized for a particular assay.
• Form/Format: Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.
• Sequence Length: 294

• Cellular Location: Nucleus, nucleolus. Nucleus, nucleoplasm. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Note: Generally nucleolar, but is translocated to the nucleoplasm in case of serum starvation or treatment with anticancer drugs. Has been found in the cytoplasm in patients with primary acute myelogenous leukemia (AML), but not with secondary AML. Can shuttle between cytoplasm and nucleus. Co- localizes with the methylated form of RPS10 in the granular component (GC) region of the nucleolus. Colocalized with nucleolin and APEX1 in nucleoli. Isoform 1 of NEK2 is required for its localization to the centrosome during mitosis
• Preparation and Storage: Maintain refrigerated at 2-8 degree C for up to 6 months. For long term storage store at -20 degree C.

Related Product Information for NPM1 blocking peptide

Involved in diverse cellular processes such as ribosome biogenesis, centrosome duplication, protein chaperoning, histone assembly, cell proliferation, and regulation of tumor suppressors p53/TP53 and ARF. Binds ribosome presumably to drive ribosome nuclear export. Associated with nucleolar ribonucleoprotein structures and bind single-stranded nucleic acids. Acts as a chaperonin for the core histones H3, H2B and H4. Stimulates APEX1 endonuclease activity on apurinic/apyrimidinic (AP) double- stranded DNA but inhibits APEX1 endonuclease activity on AP single-stranded RNA. May exert a control of APEX1 endonuclease activity within nucleoli devoted to repair AP on rDNA and the removal of oxidized rRNA molecules. In concert with BRCA2, regulates centrosome duplication. Regulates centriole duplication: phosphorylation by PLK2 is able to trigger centriole replication. Negatively regulates the activation of EIF2AK2/PKR and suppresses apoptosis through inhibition of EIF2AK2/PKR autophosphorylation.

NCBI and Uniprot Product Information

• NCBI GI #: 114762
• NCBI GeneID: 4869
• UniProt Accession #: P06748; P08693; Q12826; Q13440; Q13441; Q14115; Q5EU94; Q5EU95; Q5EU96; A8K3N7; B5BU00; D3DQL6
• Molecular Weight: 28,400 Da
• NCBI Official Full Name: Nucleophosmin
• NCBI Official Synonym Full Names: nucleophosmin
• NCBI Official Symbol: NPM1
• NCBI Official Synonym Symbols: B23; NPM
• NCBI Protein Information: nucleophosmin
• UniProt Protein Name: Nucleophosmin
• Protein Family: Nucleophosmin
• UniProt Gene Name: NPM1
• UniProt Synonym Gene Names: NPM; NPM
• UniProt Entry Name: NPM_HUMAN

NCBI Description

This gene encodes a phosphoprotein which moves between the nucleus and the cytoplasm. The gene product is thought to be involved in several processes including regulation of the ARF/p53 pathway. A number of genes are fusion partners have been characterized, in particular the anaplastic lymphoma kinase gene on chromosome 2. Mutations in this gene are associated with acute myeloid leukemia. More than a dozen pseudogenes of this gene have been identified. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Nov 2009]

Uniprot Description

NPM1: a nucleolar protein associated with nucleolar ribonucleoprotein structures and that binds single-stranded nucleic acids. Is a major component of template activating factor (TAF)-III. It plays a role in controlling centrosome duplication, and may function in the assembly and/or transport of the ribosome. Two alternatively spliced isoforms have been described.

Protein type: Translation; Oncoprotein; Nucleolus; RNA-binding

Chromosomal Location of Human Ortholog: 5q35.1

Cellular Component: centrosome; cytoplasm; cytosol; focal adhesion; membrane; nucleolus; nucleoplasm; nucleus; ribonucleoprotein complex; spindle pole centrosome

Molecular Function: histone binding; NF-kappaB binding; protein binding; protein heterodimerization activity; protein homodimerization activity; protein kinase binding; protein kinase inhibitor activity; ribosomal large subunit binding; ribosomal small subunit binding; RNA binding; Tat protein binding; transcription coactivator activity; unfolded protein binding

Biological Process: activation of NF-kappaB transcription factor; cell aging; centrosome cycle; DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest; DNA repair; DNA replication-independent nucleosome assembly at centromere; intracellular protein transport; negative regulation of apoptosis; negative regulation of cell proliferation; nucleocytoplasmic transport; nucleosome assembly; positive regulation of cell proliferation; positive regulation of transcription, DNA-dependent; positive regulation of translation; protein localization; protein oligomerization; regulation of centriole replication; regulation of endodeoxyribonuclease activity; response to stress; ribosome assembly