PSMB5 Antibody - #DF6728

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Product: PSMB5 Antibody
Catalog: DF6728
Description: Rabbit polyclonal antibody to PSMB5
Application: WB IHC
Reactivity: Human, Mouse, Rat
Prediction: Bovine, Horse, Sheep, Rabbit, Dog, Xenopus
Mol.Wt.: 28kDa, 20 kDa; 28kD(Calculated).
Uniprot: P28074
RRID: AB_2838690

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 100ul $280 In stock
 200ul $350 In stock

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Related Downloads
MS Report
HPLC Report
MSDS
Data Sheet
COA
Protocols
WB Handbook
IHC Protocol
IF/ICC Protocol

Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000, IHC 1:50-1:200
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse,Rat
Prediction:
Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Xenopus(92%)
Clonality:
Polyclonal
Specificity:
PSMB5 Antibody detects endogenous levels of total PSMB5.
RRID:
AB_2838690
Cite Format: Affinity Biosciences Cat# DF6728, RRID:AB_2838690.
Conjugate:
Unconjugated.
Purification:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Storage:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

DKFZp459C139; EC 3.4.25.1; LMPX; Macropain epsilon chain; MB1; MGC104214; MGC118075; MGC134464; Multicatalytic endopeptidase complex epsilon chain; Proteasome (prosome, macropain) subunit, beta type, 5; Proteasome beta 5 subunit; Proteasome catalytic subunit 3; Proteasome chain 6; Proteasome epsilon chain; Proteasome subunit beta type-5; Proteasome subunit MB1; Proteasome subunit X; Proteasome subunit, beta type, 5; Proteasome subunit, beta-5; PSB5_HUMAN; PSMB5; PSX large multifunctional protease X; X;

Immunogens

Immunogen:
Uniprot:

P28074(PSB5_HUMAN) >>Visit HPA database.

Gene(ID):
PSMB5(5693)
Description:
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 proteasome B-type family, also known as the T1B family, that is a 20S core beta subunit in the proteasome. This catalytic subunit is not present in the immunoproteasome and is replaced by catalytic subunit 3i (proteasome beta 8 subunit). Multiple transcript variants encoding different isoforms have been found for this gene.
Sequence:
MALASVLERPLPVNQRGFFGLGGRADLLDLGPGSLSDGLSLAAPGWGVPEEPGIEMLHGTTTLAFKFRHGVIVAADSRATAGAYIASQTVKKVIEINPYLLGTMAGGAADCSFWERLLARQCRIYELRNKERISVAAASKLLANMVYQYKGMGLSMGTMICGWDKRGPGLYYVDSEGNRISGATFSVGSGSVYAYGVMDRGYSYDLEVEQAYDLARRAIYQATYRDAYSGGAVNLYHVREDGWIRVSSDNVADLHEKYSGSTP

Predictions

Predictions:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species
Results
Score
Horse
100
Bovine
100
Sheep
100
Dog
100
Rabbit
100
Xenopus
92
Chicken
67
Zebrafish
58
Pig
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - P28074 As Substrate

Site PTM Type Enzyme
S87 Phosphorylation
K91 Ubiquitination
K92 Ubiquitination
Y99 Phosphorylation
S139 Phosphorylation
K140 Ubiquitination
Y147 Phosphorylation
Y149 Phosphorylation
K165 Ubiquitination
Y171 Phosphorylation
S175 Phosphorylation
Y212 Phosphorylation
Y220 Phosphorylation
Y228 Phosphorylation
Y236 Phosphorylation
S247 Phosphorylation
S248 Phosphorylation
K257 Acetylation
K257 Ubiquitination
S261 Phosphorylation
T262 Phosphorylation

Research Backgrounds

Function:

Component of the 20S core proteasome complex involved in the proteolytic degradation of most intracellular proteins. This complex plays numerous essential roles within the cell by associating with different regulatory particles. Associated with two 19S regulatory particles, forms the 26S proteasome and thus participates in the ATP-dependent degradation of ubiquitinated proteins. The 26S proteasome plays a key role in the maintenance of protein homeostasis by removing misfolded or damaged proteins that could impair cellular functions, and by removing proteins whose functions are no longer required. Associated with the PA200 or PA28, the 20S proteasome mediates ubiquitin-independent protein degradation. This type of proteolysis is required in several pathways including spermatogenesis (20S-PA200 complex) or generation of a subset of MHC class I-presented antigenic peptides (20S-PA28 complex). Within the 20S core complex, PSMB5 displays a chymotrypsin-like activity.

Subcellular Location:

Cytoplasm. Nucleus.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Subunit Structure:

The 26S proteasome consists of a 20S proteasome core and two 19S regulatory subunits. The 20S proteasome core is a barrel-shaped complex made of 28 subunits that are arranged in four stacked rings. The two outer rings are each formed by seven alpha subunits, and the two inner rings are formed by seven beta subunits. The proteolytic activity is exerted by three beta-subunits PSMB5, PSMB6 and PSMB7. Directly interacts with POMP. Interacts with ABCB1 and TAP1.

(Microbial infection) Interacts with HIV-1 TAT protein.

Family&Domains:

Belongs to the peptidase T1B family.

Research Fields

· Genetic Information Processing > Folding, sorting and degradation > Proteasome.

References

1). TRIB2 modulates proteasome function to reduce ubiquitin stability and protect liver cancer cells against oxidative stress. Cell Death & Disease, 2021 (PubMed: 33414446) [IF=9.0]

Application: WB    Species: human    Sample: Bel-7402 and SMMC7721 cells

Fig. 2| PSMB5 is a target of TRIB2 in the proteasome.e PSMB5 was critical for TRIB2. Ub was measured in the Bel-7402 and SMMC7721 cells with or without PSMB5 knocked out or compensatory PSMB5 expression, in the presence or absence of TRIB2 knockdown.

Application: IF/ICC    Species: human    Sample: Bel-7402 and SMMC7721 cells

Fig. s3|IntheabsenceofTRIB2,thelevelofUbwasincreasedbecausePSMB5waslessactive(Figs.1–3).

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