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Invitrogen™ HPK1 Polyclonal Antibody
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Catalog No. PIPA5106522
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100 μL
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Catalog No. Quantity
PIPA5106522 100 μL
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Catalog No. PIPA5106522 Supplier Invitrogen™ Supplier No. PA5106522
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Description

Rabbit Polyclonal Antibody

Antibody detects endogenous levels of total HPK1.

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.
TRUSTED_SUSTAINABILITY

Specifications

Antigen HPK1
Applications Western Blot, Immunocytochemistry
Classification Polyclonal
Concentration 1 mg/mL
Conjugate Unconjugated
Formulation PBS with 50% glycerol and 0.02% sodium azide; pH 7.4
Gene MAP4K1
Gene Accession No. P70218, 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 Rabbit
Immunogen A synthesized peptide derived from human MAP4K1(Accession Q92918), corresponding to amino acid residues S377-R427.
Purification Method Affinity chromatography
Quantity 100 μL
Regulatory Status RUO
Primary or Secondary Primary
Gene ID (Entrez) 11184, 26411, 292763
Target Species Human, Mouse, Rat
Content And Storage -20°C
Product Type Antibody
Form Liquid
Isotype IgG
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Safety and Handling

WARNING: Cancer - www.P65Warnings.ca.gov
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