Invitrogen™ HPK1 Polyclonal Antibody

Catalog No.	Quantity
01-674-638	100 μg

Catalog No. 01-674-638 Supplier Invitrogen™ Supplier No. PA19054

Description

Goat Polyclonal Antibody

This antibody is predicted to react with bovine, canine, mouse, porcine and rat based on sequence homology. This antibody is tested in Peptide ELISA: antibody detection limit dilution 32,000.

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

• Antigen: HPK1
• Applications: Immunohistochemistry (Paraffin), Western Blot
• Classification: Polyclonal
• Concentration: 0.5 mg/mL
• Conjugate: Unconjugated
• Formulation: TBS with 0.5% BSA and 0.02% sodium azide; pH 7.3
• Gene: MAP4K1
• Gene Accession No.: Q92918
• 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
• Gene Symbols: MAP4K1
• Host Species: Goat
• Immunogen: Synthetic peptide corresponding to the N terminus amino acids DVVDPDIFNRDPR (aa 2-15).
• Purification Method: Ammonium sulfate precipitation
• Quantity: 100 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 11184
• Target Species: Human
• Content And Storage: -20°C, Avoid Freeze/Thaw Cycles
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG

Safety and Handling

WARNING: Cancer - www.P65Warnings.ca.gov