Immunofluorescent analysis of U251 cells using a YBX1 polyclonal antibody (Product # PA5-13307). U251 cells were fixed with 4% PFA (20 min), permeabilized with Triton X-100 (0.1%, 10 min), then incubated with a YBX1 polyclonal antibody (Product # PA5-13307) (1:25, 1 hr at 37°C). Primary antibody was detected with fluor-conjugated donkey anti-rabbit secondary antibody (green) at 1:400 dilution for 50 min at 37°C). Actin filaments have been labeled with dye-conjugated phalloidin (red). Nuclei were counterstained with DAPI (blue) (10 ug/ml, 10 min).
|Tested species reactivity||Human|
|Host / Isotype||Rabbit / IgG|
|Immunogen||KLH conjugated synthetic peptide between 276-305 amino acids from the C-terminal region of human YBX1|
|Purification||Size-exclusion - Dialysis, Ammonium sulfate precipitation|
|Contains||0.09% sodium azide|
|Storage Conditions||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C|
|Tested Applications||Dilution *|
|Western Blot (WB)||1:1000|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
This antibody is predicted to react with bovine, mouse, rat and Xenopus based on sequence homology.
YBX1 binds to splice sites in pre-mRNA and regulates splice site selection. This protein binds and stabilizes cytoplasmic mRNA and contributes to the regulation of translation by modulating the interaction between the mRNA and eukaryotic initiation factors. It binds to promoters that contain a Y-box (5'-CTGATTGGCCAA-3'), such as HLA class II genes. It regulates the transcription of numerous genes and promotes separation of DNA strands that contain mismatches or are modified by cisplatin. It has endonucleolytic activity and can introduce nicks or breaks into double-stranded DNA (in vitro), and it may play a role in DNA repair.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.