Recombinant Human Mitogen-activated protein kinase kinase kinase kinase 1 (MAP4K1), partial

Code CSB-YP013436HU
MSDS
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Source Yeast
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Code CSB-EP013436HU
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Source E.coli
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Code CSB-EP013436HU-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP013436HU
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Source Baculovirus
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Code CSB-MP013436HU
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Source Mammalian cell
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Product Details

Purity
>85% (SDS-PAGE)
Target Names
Uniprot No.
Alternative Names
Hematopoietic progenitor kinase 1; Hematopoietic progenitor kinase; HPK1; Human Hematopoietic Progenitor Kinase ; M4K1_HUMAN; Map4k1; MAPK/ERK kinase kinase kinase 1; MEK kinase kinase 1; MEKKK 1; Mitogen activated protein kinase kinase kinase kinase 1; Mitogen-activated protein kinase kinase kinase kinase 1
Species
Homo sapiens (Human)
Protein Length
Partial
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet
Please contact us to get it.

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Target Background

Function
Serine/threonine-protein kinase, which may play a role in the response to environmental stress. Appears to act upstream of the JUN N-terminal pathway. May play a role in hematopoietic lineage decisions and growth regulation. Able to autophosphorylate. Together with CLNK, it enhances CD3-triggered activation of T-cells and subsequent IL2 production.
Gene References into Functions
  1. Interactions between HPK1 and its adaptor proteins related to immunity has been discussed (Review). PMID: 28901492
  2. HPK1 protein expression, which is expressed at significantly higher levels in NATs compared with paired IDC-NOS tissues, is significantly negatively associated with ER positivity and is positively associated with OS duration, suggesting that HPK1 may exhibit anticancer activities. PMID: 28765906
  3. CUL7/Fbxw8 ubiquitin ligase-mediated HPK1 degradation revealed a direct link and novel role of CUL7/Fbxw8 ubiquitin ligase in the MAPK pathway, which plays a critical role in cell proliferation and differentiation. PMID: 24362026
  4. HPK1 is critically involved in LFA-1-mediated polymorphonuclear neutrophils trafficking during acute inflammation. PMID: 23460610
  5. results indicate that uncleaved HPK1 is a positive regulator of vitamin D-induced differentiation in acute myeloid leukemia cells, but the cleaved HPK1 fragment inhibits differentiation PMID: 22421156
  6. Pdcd4 knockdown up-regulates MAP kinase kinase kinase kinase 1 (MAP4K1) expression and increases phosphorylation of c-Jun. PMID: 22801218
  7. QVD and 1,25D-induced differentiation was accompanied by increased signaling by Hematopoietic Progenitor Kinase 1(HPK1), and the expression of transcription factors known to be involved in monocytic differentiation was increased. PMID: 22541691
  8. HPK1 negatively regulates T cell activation by reducing the persistence of signaling microclusters. PMID: 22105350
  9. The purpose of the study was to investigate the potential contribution of HPK1, MEKK1, TAK1, p-MKK4 to the development of extramammary Paget disease PMID: 21915030
  10. The catalytic activity of a hematopoietic cell-restricted, Ste20-related S/TPK, HPK1, is positively regulated by exposure to physiological concentrations of PGE2. HPK1 is a negative regulator of PGE2-induced FOS gene transcription. PMID: 12522005
  11. PP4 is a positive regulator for HPK1 and the HPK1-JNK signaling pathway PMID: 15364934
  12. Full activation of HPK1 is dependent on autophosphorylation of threonine 165 and phosphorylation of serine 171, which is a target site for protein kinase D (PKD) in vitro. PMID: 15743830
  13. suppression or activation of NFkappaB by HPK1 determines sensitivity to activation-induced cell death PMID: 16341093
  14. Pdcd4 suppresses tumor progression in colon carcinoma cells by the novel mechanism of down-regulating MAP4K1 transcription, with consequent inhibition of c-Jun activation and AP-1-dependent transcription. PMID: 16449643
  15. Our work explains growth factor-independent survival during monocytic differentiation by caspase-mediated processing of HPK1 towards HPK1-N. PMID: 17024227
  16. A novel negative feedback loop involves HPK-1-dependent serine phosphorylation of SLP-76 and 14-3-3 protein recruitment, which tunes T cell activation. PMID: 17353368
  17. HPK1-C as a suppressor of antiapoptotic Bcl-2 proteins and provide a molecular basis for our understanding of CD95L-independent activation-induced cell death of lymphocytes. PMID: 17712048
  18. Prostaglandin E2 activates HPK1 kinase activity via a PKA-dependent pathway PMID: 17895239
  19. Restoring wild-type HPK1 protein in pancreatic cancer cells led to the increase in p21 and p27 protein expression and cell cycle arrest. HPK1 may function as a novel tumor suppressor and its loss plays a critical role in pancreatic cancer. PMID: 19141650
  20. Results suggest HPK1-mediated phosphorylation of CARMA1 as an additional regulatory mechanism tuning the NF-kappaB response upon TCR stimulation. PMID: 19706536

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Protein Families
Protein kinase superfamily, STE Ser/Thr protein kinase family, STE20 subfamily
Tissue Specificity
Expressed primarily in hematopoietic organs, including bone marrow, spleen and thymus. Also expressed at very low levels in lung, kidney, mammary glands and small intestine.
Database Links

HGNC: 6863

OMIM: 601983

KEGG: hsa:11184

STRING: 9606.ENSP00000380066

UniGene: Hs.95424

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