Rabbit Polyclonal antibody to Lck (Phospho Tyr505)Tyrosine kinase that plays an essential role for the selection and maturation of developing T-cell in the thymus and in mature T-cell function. Is constitutively associated with the cytoplasmic portions of the CD4 and CD8 surface receptors and plays a key role in T-cell antigen receptor(TCR)-linked signal transduction pathways. Association of the TCR with a peptide antigen-bound MHC complex facilitates the interaction of CD4 and CD8 with MHC class II and class I molecules, respectively, and thereby recruits the associated LCK to the vicinity of the TCR/CD3 complex. LCK then phosphorylates tyrosines residues within the immunoreceptor tyrosines-based activation motifs (ITAMs) in the cytoplasmic tails of the TCRgamma chains and CD3 subunits, initiating the TCR/CD3 signaling pathway. In addition, contributes to signaling by other receptor molecules. Associates directly with the cytoplasmic tail of CD2, and upon engagement of the CD2 molecule, LCK undergoes hyperphosphorylation and activation. Also plays a role in the IL2 receptor-linked signaling pathway that controls T-cell proliferative response. Binding of IL2 to its receptor results in increased activity of LCK. Is expressed at all stages of thymocyte development and is required for the regulation of maturation events that are governed by both pre-TCR and mature alpha beta TCR.
Immunogen
Peptide sequence around phosphorylation site of tyrosine 505 (G-Q-Y(p)-Q-P) derived from Human Lck.
Modification
p-Tyr505
Key Feature
Clonality
Polyclonal
Host Species
Rabbit
Tested Applications
WB
Suggested starting dilutions are as follows. WB: 1:500~1:1000. Not yet tested in other applications. Optimal working dilutions should be determined experimentally by the end user.:
Species Reactivity
HumanMouse
Concentration
1mg/ml (Please refer to the vial label for the specific concentration)
Purification
Affinity purified
Target Information
Gene Synonyms
LSK YT16 p56lck pp58lck LCK t cell-specific protein-tyrosine kinase tyrosine-protein kinase Lck p56(LSTRA) protein-tyrosine kinase proto-oncogene tyrosine-protein kinase LCK leukocyte C-terminal Src kinase T-lymphocyte specific protein tyrosine k
Target
Lck (Phospho Tyr505)
Molecular Weight(MW)
56 (note)
Application
Application
Western blot analysis of extracts from JK cells using Lck(phospho-Tyr505) Antibody and the same antibody preincubated with blocking peptide.
Application Notes
Suggested starting dilutions are as follows. WB: 1:500~1:1000. Not yet tested in other applications. Optimal working dilutions should be determined experimentally by the end user.:
Additional Information
Form
Liquid
Storage Instructions
Keep as concentrated solution. Aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.
Storage Buffer
saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.