Immunofluorescent analysis of Proteasome 20S alpha 4 in paraformaldehyde-fixed HeLa cells using a Proteasome 20S alpha 4 polyclonal antibody (Product # PA5-28149) (Green) at a 1:500 dilution. Alpha-tubulin filaments were labeled with Product # PA5-29281 (Red) at a 1:2000.
|Tested species reactivity||Human|
|Host / Isotype||Rabbit / IgG|
|Immunogen||Recombinant fragment corresponding to a region within amino acids 1 and 224 of Human Proteasome 20S alpha 4|
|Purification||Antigen affinity chromatography|
|Storage buffer||PBS, pH 7, with 1% BSA, 20% glycerol|
|Storage Conditions||-20° C, Avoid Freeze/Thaw Cycles|
|Tested Applications||Dilution *|
|Western Blot (WB)||1:500-1:3000|
* 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.
PA5-28149 targets Proteasome 20S alpha 4 in IF and WB applications and shows reactivity with Human samples.
The PA5-28149 immunogen is recombinant fragment corresponding to a region within amino acids 1 and 224 of Human Proteasome 20S alpha 4.
The proteasome is a multicatalytic proteinase complex with a highly ordered ring-shaped 20S core structure. The core structure is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes a member of the peptidase T1A family, that is a 20S core alpha subunit. Three alternatively spliced transcript variants encoding different isoforms have been found for this gene.
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