Detection of Human Phospho-Paxillin (Y118) by Western Blot.
Western blot shows lysates of K562 human chronic myelogenous leukemia cell line and Jurkat human acute T cell leukemia cell line untreated (-) or treated (+) with Pervanadate for 5 minutes. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human Phospho-Paxillin (Y118) Antigen Affinity-purified Monoclonal Antibody (Catalog # MAB6164) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for Phospho-Paxillin (Y118) at approximately 80 kDa (as indicated). For additional reference, the membran was stripped and reprobed with 2 µg/mL of Sheep Anti-Human/Mouse/Rat Paxillin Antigen Affinity-purified Polyclonal Antibody (lower panel, Catalog # AF4259). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after opening.
6 months, -20 to -70 °C under sterile conditions after opening.
Paxillin is a 65 kDa cytoskeletal adaptor protein and member of the Paxillin family. Human Paxillin is 591 amino acids (aa) in length and contains four LIM zinc-binding domains. Alternative splicing produces three isoforms. Human Paxillin shares 94% and 85% aa identity with mouse and rat Paxillin, respectively. Paxillin is found at the interface between actin filaments and the plasma membrane, and it localizes to focal adhesions, where it provides a platform for the integration and coordination of adhesion- and growth factor-related signals. Paxillin phosphorylation at tyrosines 31 and 118 is required for integrin-mediated cytoskeletal reorganization, and may play a role in the disassembly of focal adhesions and stress fibers during cellular transformation.
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