Key features and details
- Rabbit polyclonal to Proteasome 20S LMP7
- Suitable for: WB
- Knockout validated
- Reacts with: Human
- Isotype: IgG
Product nameAnti-Proteasome 20S LMP7 antibody
See all Proteasome 20S LMP7 primary antibodies
DescriptionRabbit polyclonal to Proteasome 20S LMP7
Tested applicationsSuitable for: WBmore details
Species reactivityReacts with: Human
Predicted to work with: Cow, Pig, Non human primates
- WB: A549, Jurkat, Raji and U937 cell lysates.
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
Storage bufferpH: 7.40
Preservative: 0.02% Sodium azide
Batches of this product that have a concentration < 1mg/ml may have BSA added as a stabilising agent. If you would like information about the formulation of a specific lot, please contact our scientific support team who will be happy to help.
Concentration information loading...
PurityImmunogen affinity purified
KO cell lines
KO cell lysates
Our Abpromise guarantee covers the use of ab82528 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Not yet tested in other applications.
Optimal dilutions/concentrations should be determined by the end user.
FunctionThe proteasome is a multicatalytic proteinase complex which is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. The proteasome has an ATP-dependent proteolytic activity. This subunit is involved in antigen processing to generate class I binding peptides. Replacement of PSMB5 by PSMB8 increases the capacity of the immunoproteasome to cleave model peptides after hydrophobic and basic residues. Acts as a major component of interferon gamma-induced sensitivity. Plays a key role in apoptosis via the degradation of the apoptotic inhibitor MCL1. May be involved in the inflammatory response pathway. In cancer cells, substitution of isoform 1 (E2) by isoform 2 (E1) results in immunoproteasome deficiency.
Involvement in diseaseDefects in PSMB8 are the cause of JMP syndrome (JMPS) [MIM:613732]; also called joint contractures muscular atrophy microcytic anemia and panniculitis-induced lipodystrophy. JBTS1 is an autoinflammatory disorder characterized by childhood onset of joint stiffness and severe contractures of the hands and feet, erythematous skin lesions with subsequent development of severe lipodystrophy, and laboratory evidence of immune dysregulation. Accompanying features include muscle weakness and atrophy, hepatosplenomegaly, and microcytic anemia.
Sequence similaritiesBelongs to the peptidase T1B family.
Developmental stageHighly expressed in immature dendritic cells (at protein level).
modificationsAutocleaved. The resulting N-terminal Thr residue of the mature subunit is responsible for the nucleophile proteolytic activity.
Cellular localizationCytoplasm. Nucleus.
- Information by UniProt
- ALDD antibody
- D6S216 antibody
- D6S216E antibody
All lanes : Anti-Proteasome 20S LMP7 antibody (ab82528) at 1/500 dilution
Lane 1 : Wild-type A549 cell lysate
Lane 2 : PSMB8 knockout A549 cell lysate
Lane 3 : Raji cell lysate
Lane 4 : HEK-293 cell lysate
Lysates/proteins at 20 µg per lane.
All lanes : Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) at 1/10000 dilution
Predicted band size: 30 kDa
Observed band size: 23 kDa why is the actual band size different from the predicted?
Lanes 1-4: Merged signal (red and green). Green - ab82528 observed at 23 kDa. Red - loading control ab8245 observed at 36 kDa.
ab82528 Anti-Proteasome 20S LMP7 antibody was shown to specifically react with Proteasome 20S LMP7 in wild-type A549 cells. Loss of signal was observed when knockout cell line ab267148 (knockout cell lysate ab257129) was used. Wild-type and Proteasome 20S LMP7 knockout samples were subjected to SDS-PAGE. ab82528 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at 1 in 500 dilution and 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
All lanes : Anti-Proteasome 20S LMP7 antibody (ab82528) at 1 µg/ml
Lane 1 : Jurkat (Human T cell lymphoblast-like cell line) Whole Cell Lysate
Lane 2 : Raji (Human Burkitt's lymphoma cell line) Whole Cell Lysate
Lane 3 : U937 (Human leukemic monocyte lymphoma cell line) Whole Cell Lysate
Lysates/proteins at 10 µg per lane.
All lanes : Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 30 kDa
Observed band size: 22 kDa why is the actual band size different from the predicted?
Additional bands at: 145 kDa. We are unsure as to the identity of these extra bands.
We hypothesize that the 22 kDa band corresponds to the mature form of Proteasome 20S LMP7.
ab82528 has not yet been referenced specifically in any publications.