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Literature summary for 2.7.10.2 extracted from

  • Mahabeleshwar, G.H.; Kundu, G.C.
    Tyrosine kinase p56lck regulates cell motility and nuclear factor kappaB-mediated secretion of urokinase type plasminogen activator through tyrosine phosphorylation of IkappaBalpha following hypoxia/reoxygenation (2003), J. Biol. Chem., 278, 52598-52612.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information hypoxia/reoxygenation induces tyrosine phosphorylation of Lck and Lck activity in breast cancer cells and of IkappaBalpha, but not of IkappaBalpha serine phosphorylation, activation is inhibited by emodin and pp2 Homo sapiens

Cloned(Commentary)

Cloned (Comment) Organism
expression of wild-type Lck in Y394F Lck mutant cells Homo sapiens

Protein Variants

Protein Variants Comment Organism
Y394F Lck F394 mutant cells show reduced tyrosine phosphorylation of the enzyme, expression of recombinant wild-type Lck in the mutant cells increases the autophosphorylation activity 3fold Homo sapiens

Inhibitors

Inhibitors Comment Organism Structure
4-amino-5-(4-chlorophenyl)-7-(tert-butyl)pyrazolo[3,4-d]pyrimidine i.e. pp2, Lck inhibitor Homo sapiens
emodin i.e. 6-methyl-1,3,8-trihydroxyanthraquinone, Lck inhibitor Homo sapiens
additional information regulation of Lck by phosphorylation at Tyr505 by C-terminal Scr protein-tyrosine kinase which inhibits the enzyme Homo sapiens

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+
-
Homo sapiens
Mn2+
-
Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ATP + IkappaBalpha-L-tyrosine Homo sapiens p56lck regulates cell motility and nuclear factor kappaB-mediated secretion of urokinase type plasminogen activator through tyrosine phosphorylation of IkappaBalpha following hypoxia/reoxygenation, molecular mechanism, physiological role ADP + IkappaBalpha-L-tyrosine phosphate
-
?

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
phosphoprotein regulation of Lck by phosphorylation at Tyr505 by C-terminal Scr protein-tyrosine kinase which inhibits the enzyme Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
breast cancer cell
-
Homo sapiens
-
MCF-7 cell low invasive breast cancer cell Homo sapiens
-
MDA-MB-231 cell high invasive breast cancer cell Homo sapiens
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + IkappaBalpha-L-tyrosine p56lck regulates cell motility and nuclear factor kappaB-mediated secretion of urokinase type plasminogen activator through tyrosine phosphorylation of IkappaBalpha following hypoxia/reoxygenation, molecular mechanism, physiological role Homo sapiens ADP + IkappaBalpha-L-tyrosine phosphate
-
?
ATP + IkappaBalpha-L-tyrosine Lck interacts via its SH2 domain with tyrosine-phosphorylated IkappaBalpha Homo sapiens ADP + IkappaBalpha-L-tyrosine phosphate
-
?

Synonyms

Synonyms Comment Organism
Lck
-
Homo sapiens
More Lck is a member of the Src non-receptor tyrosine kinase family Homo sapiens
p56lck
-
Homo sapiens

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Homo sapiens

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.7
-
assay at Homo sapiens

Cofactor

Cofactor Comment Organism Structure
ATP
-
Homo sapiens