Recombinant Human Lck Protein

Product Discontinued

Recombinant Human Lck Protein Summary

• Description: Recombinant protein for Human Lck
  
  

  Source:Baculovirus (Sf9 insect cells)
  Amino Acid Sequence:(P06239)

• Source: Sf 9 (baculovirus)
• Protein/Peptide Type: Recombinant Protein
• Gene: LCK
• Purity: >90%, by SDS-PAGE

Applications/Dilutions

• Dilutions:
  • Bioactivity
  • SDS-Page
• Application Notes: Specific activity: 239 nmol phosphate incorporated into MBP per minute per mg protein at 30C for 15 minutes using a final concentration of 50 uM ATP (0.83 mCi/assay).
• Theoretical MW: 84 kDa.
  Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

• Storage: Store at -80C. Avoid freeze-thaw cycles.
• Buffer: 50 mM Tris-HCl, pH 7.5, 150 mM NaCl, 0.25 mM DTT, 0.1 mM EGTA, 0.1 mM EDTA, 0.1 mM PMSF, 30% glycerol
• Concentration: 0.1 mg/ml
• Purity: >90%, by SDS-PAGE

Alternate Names for Recombinant Human Lck Protein

• EC 2.7.10
• EC 2.7.10.2
• Hck-3
• Lck
• Lcktkr
• Leukocyte C-terminal Src kinase
• LSK
• LSTRA
• Lymphocyte cell-specific protein-tyrosine kinase
• lymphocyte-specific protein tyrosine kinase
• p56(LSTRA) protein-tyrosine kinase
• p56lck
• p56-LCK
• pp58lck
• Protein YT16
• Proto-oncogene Lck
• proto-oncogene tyrosine-protein kinase LCK
• T cell-specific protein-tyrosine kinase
• T-lymphocyte specific protein tyrosine kinase p56lck
• tyrosine-protein kinase Lck
• YT16

Background

Lck (p56lck) is a member of the src family of non-receptor tyrosine kinases. It was identified as a gene rearranged and overexpressed in the murine lymphoma LSTRA, most likely as a result of the insertion of Moloney murine leukemia virus DNA immediately adjacent to the gene. Lck behaves as a proto-oncogene and can lead to cell transformation upon activation. A number of human cancer cell lines show overexpression of Lck, pointing to a possible role for this kinase in the initiation and maintenance of the transformed state in human cancers. Colon cancers and T-cell leukemias frequently show defective regulation of Lck expression and activity.Inappropriate T cell activation and proliferation have been identified as an early event in auto-immune disease. Lck plays a prominent role in T-cell development, activation, proliferation and survival. Lck is coupled to both the CD4 and CD8 antigens (which serve as receptors for nonpolymorphic regions of products of the major histocompatibility complex and have been implicated in the regulation of T-cell growth) in T-cells and phosphorylates CD3. Lck phosphorylates many cellular protein substrates as a result of T-cell receptor signaling cascade. This includes phosphorylation of proteins such as Ras GTPase-activating protein (RasGAP) and two RasGAP-associated proteins, p56(dok) and p62(dok).

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

Bioinformatics

• Gene Symbol: LCK