Invitrogen™ Human MAP4K1 (HPK1), GST Tag Recombinant Protein

Catalog No.	Quantity
PV6355	10 μg
PV6356	100 μg
PV6357	1 mg

Catalog No. PV6355 Supplier Invitrogen™ Supplier No. PV6355

Description

Recombinant Protein

For maximum recovery please spin prior to use. Unless noted below, aliquots of the 5 μg, 10 μg and 20 μg sizes of kinase are not recommended as materials can be used in original packaging until exhausted. For larger sizes, the number of freeze/thaws may be reduced by preparing aliquots, aliquots below 20 μL are not recommended. Please never store a kinase diluted. If properly stored at -80C, this product is guaranteed for 6 months from date of purchase. Recombinant human MAP4K1 (1-346) was expressed by baculovirus in Sf9 insect cells using an N-terminal GST tag. Validated in LanthaScreen™ Kinase Binding Assay Protocols available for simple use and optimized performance Multiple pack sizes available for convenient use Related Product:LanthaScreen™ Eu Kinase Binding Assay Protein Form: Recombinant, Full Length The gene accession number for MAP4K1 (HPK1) is NP_009112.1.

MAP4K1 (also known as HPK1) or Hematopoietic progenitor kinase 1 is a hematopoietic cell-restricted member of the Ste20 serine/threonine kinase super family. MAP4K1 is a tissue-specific upstream activator of the MEKK/JNK/SAPK signaling pathway. MAP4K1 diminishes T cell receptor (TCR) signaling activity and T cell proliferation by phosphorylating the adaptor protein SLP-76. The c-Jun amino-terminal kinases (JNKs)/stress-activated protein kinases (SAPKs) play a crucial role in stress responses in mammalian cells. The mechanism underlying this pathway in the hematopoietic system is unclear, but it is a key in understanding the molecular basis of blood cell differentiation. We have cloned a novel protein kinase, termed hematopoietic progenitor kinase 1 (HPK1), that is expressed predominantly in hematopoietic cells, including early progenitor cells. HPK1 is related distantly to the p21(Cdc42/Rac1)-activated kinase (PAK) and yeast STE20 implicated in the mitogen-activated protein kinase (MAPK) cascade. Expression of HPK1 activates JNK1 specifically, and it elevates strongly AP-1-mediated transcriptional activity in vivo. HPK1 binds and phosphorylates MEKK1 directly, whereas JNK1 activation by HPK1 is inhibited by a dominant-negative MEKK1 or MKK4/SEK mutant. Interestingly, unlike PAK65, HPK1 does not contain the small GTPase Rac1/Cdc42-binding domain and does not bind to either Rac1 or Cdc42, suggesting that HPK1.

Specifications

• Accession Number: Q92918
• Concentration: See Label
• For Use With (Application): Kinase Assay
• Formulation: 50mM tris HCl with 0.25mM DTT, 0.1mM EDTA, 10mM glutathione, 0.1mM PMSF, 25% glycerol, 150mM NaCl and no preservative; pH 7.5
• Gene ID (Entrez): 11184
• Molecular Weight (g/mol): 65 kDa
• Name: Human MAP4K1 (HPK1), GST Tag
• pH Range: 7.5
• Purification Method: Purified
• Quantity: 10 μg
• Storage Requirements: -80°C, Avoid Freeze/Thaw Cycles
• Regulatory Status: RUO
• Gene Alias: EC 2.7.11.1; Hematopoietic progenitor kinase; hematopoietic progenitor kinase 1; HPK; HPK1; MAP4K1; MAPK/ERK kinase kinase kinase 1; MEK kinase kinase 1; MEKKK 1; mHPK1; mitogen activated protein kinase kinase kinase kinase 1; mitogen-activated protein kinase kinase kinase kinase 1
• Common Name: HPK1
• Gene Symbol: MAP4K1
• Protein Length: 1-346
• Product Type: Protein
• Conjugate: Unconjugated
• Species: Human
• Recombinant: Recombinant
• Protein Tag: GST-tag
• Sequence: 1-346
• Content And Storage: -80°C, Avoid Freeze/Thaw Cycles
• Assay Entry: Biochemical binding/kinetic
• Kinase Group: Serine/Threonine Kinase
• Target Entry: MAP4K1 (HPK1)
• Expression System: Baculovirus
• Protein Family: Kinases & Inhibitors
• Protein Form: Recombinant, Full Length
• Form: Liquid
• Protein Subtype: Serine/Threonine Kinases