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AB268820

Recombinant human GST-Nucleophosmin-ALK fusion protein (Active)

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Recombinant human GST-Nucleophosmin-ALK fusion protein (Active) is a Human protein, expressed in Baculovirus infected Sf9 cells, with >70%, suitable for SDS-PAGE, FuncS.

View Alternative Names

NPM, NPM1, Nucleophosmin, Nucleolar phosphoprotein B23, Nucleolar protein NO38, Numatrin

2 Images
Functional Studies - Recombinant human GST-Nucleophosmin-ALK fusion protein (Active) (AB268820)
  • FuncS

Supplier Data

Functional Studies - Recombinant human GST-Nucleophosmin-ALK fusion protein (Active) (AB268820)

The specific activity of ab268820 was determined to be 32 nmol/min/mg in a kinase assay using IGF1Rtide synthetic peptide substrate.

SDS-PAGE - Recombinant human GST-Nucleophosmin-ALK fusion protein (Active) (AB268820)
  • SDS-PAGE

Supplier Data

SDS-PAGE - Recombinant human GST-Nucleophosmin-ALK fusion protein (Active) (AB268820)

SDS-PAGE analysis of ab268820.

Key facts

Purity

>70% SDS-PAGE

Expression system

Baculovirus infected Sf9 cells

Tags

GST tag N-Terminus

Applications

FuncS, SDS-PAGE

applications

Biologically active

Yes

Biological activity

The specific activity of ab268820 was determined to be 32 nmol/min/mg in a kinase assay using IGF1Rtide synthetic peptide substrate.

Accession

P06748

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 7.5 Preservative: 1.02% Imidazole Constituents: 25% Glycerol (glycerin, glycerine), 1.74% Sodium chloride, 0.82% Sodium phosphate, 0.004% (R*,R*)-1,4-Dimercaptobutan-2,3-diol, 0.002% PMSF

storage-buffer

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "FuncS": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

GST-Nucleoplasmin_ALK fusion protein

Sequence info

[{"sequence":"1058-end","proteinLength":null,"predictedMolecularWeight":null,"actualMolecularWeight":null,"aminoAcidEnd":0,"aminoAcidStart":0,"nature":"Recombinant","expressionSystem":"Baculovirus infected Sf9 cells","accessionNumber":"Q9UM73","tags":[{"tag":"GST","terminus":"N-Terminus"}]}]

Properties and storage information

Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-80°C
Appropriate long-term storage conditions
-80°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
True

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The ALK-Nucleophosmin fusion protein also known as NPM-ALK is an oncogenic fusion resulting from a translocation between the NPM1 gene and the ALK gene. The native ALK protein short for Anaplastic Lymphoma Kinase is a receptor tyrosine kinase that weighs approximately 220 kDa. It is normally expressed in the central nervous system testes and small intestine. The fusion with NPM1 a protein of around 38 kDa commonly found in the nucleolus results in a chimeric protein exhibiting constitutive kinase activity that contributes to oncogenesis.
Biological function summary

The ALK-Nucleophosmin fusion protein disrupts normal cellular signaling processes. It acts by activating downstream signaling pathways that promote cellular proliferation and survival. NPM1 besides its role in ribosome biogenesis aids in the transport of proteins and ribonucleic acids. When fused with ALK the NPM1 segment facilitates the relocation of the ALK portion leading to aberrant activation of signaling cascades. The fusion protein forms part of oligomeric complexes that overshadow the regular cell regulatory mechanisms.

Pathways

ALK-Nucleophosmin fusion protein plays a significant role in the PI3K/AKT and RAS/MAPK pathways. The fusion's constitutively active kinase domain causes persistent activation of PI3K/AKT promoting cell growth and anti-apoptotic signals. Also its impact on RAS/MAPK engages proliferative responses. In doing so it interacts with proteins like GRB2 and SOS1 instrumental in mediating these signaling pathways. This integration into critical pathways highlights its pivotal role in pathogenesis.

The ALK-Nucleophosmin fusion protein is prominently associated with anaplastic large cell lymphoma (ALCL) and other non-Hodgkin lymphomas. Its presence is a defining characteristic of ALCL driving the malignancy through sustained proliferative signaling. Additionally researchers find a link between this fusion and certain cases of lung cancer. The role of other proteins such as STAT3 is critical in this context as the ALK-Nucleophosmin fusion protein activates them further propagating oncogenic signals. The understanding of this fusion protein ties directly into therapeutic strategies targeting the abnormally activated pathways and interacting proteins.

Specifications

Form

Liquid

Additional notes

Affinity purified.

General info

Function

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. Antagonizes the inhibitory effect of ATF5 on cell proliferation and relieves ATF5-induced G2/M blockade (PubMed : 22528486). In complex with MYC enhances the transcription of MYC target genes (PubMed : 25956029). May act as chaperonin or cotransporter in the nucleolar localization of transcription termination factor TTF1 (By similarity).

Sequence similarities

Belongs to the nucleoplasmin family.

Post-translational modifications

Acetylated at C-terminal lysine residues, thereby increasing affinity to histones.. ADP-ribosylated.. Phosphorylated at Ser-4 by PLK1 and PLK2. Phosphorylation at Ser-4 by PLK2 in S phase is required for centriole duplication and is sufficient to trigger centriole replication. Phosphorylation at Ser-4 by PLK1 takes place during mitosis. Phosphorylated by CDK2 at Ser-125 and Thr-199. Phosphorylation at Thr-199 may trigger initiation of centrosome duplication. Phosphorylated by CDK1 at Thr-199, Thr-219, Thr-234 and Thr-237 during cell mitosis. When these four sites are phosphorated, RNA-binding activity seem to be abolished. May be phosphorylated at Ser-70 by NEK2. The Thr-199 phosphorylated form has higher affinity for ROCK2. CDK6 triggers Thr-199 phosphorylation when complexed to Kaposi's sarcoma herpesvirus (KSHV) V-cyclin, leading to viral reactivation by reducing viral LANA levels.. Sumoylated by ARF.. Ubiquitinated. Ubiquitination leads to proteasomal degradation. Deubiquitinated by USP36 (PubMed:19208757).

Subcellular localisation

Nucleus

Product protocols

Target data

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. Antagonizes the inhibitory effect of ATF5 on cell proliferation and relieves ATF5-induced G2/M blockade (PubMed : 22528486). In complex with MYC enhances the transcription of MYC target genes (PubMed : 25956029). May act as chaperonin or cotransporter in the nucleolar localization of transcription termination factor TTF1 (By similarity).
See full target information NPM1

Additional targets

ALK

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