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Key Documents

AV46142

Sigma-Aldrich

Anti-PSME3 (AB1) antibody produced in rabbit

affinity isolated antibody

Synonym(s):

Anti-Ki, Anti-PA28-gamma, Anti-PA28G, Anti-Proteasome (prosome, macropain) activator subunit 3 (PA28 γ; Ki), Anti-REG-GAMMA

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About This Item

UNSPSC Code:
12352203

biological source

rabbit

Quality Level

100

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

31 kDa

species reactivity

rat, human, bovine, horse, mouse, guinea pig, rabbit, dog

concentration

0.5 mg - 1 mg/mL

technique(s)

immunohistochemistry: suitable
western blot: suitable

NCBI accession no.

NP_005780

UniProt accession no.

P61289-2

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... PSME3(10197)

Immunogen

Synthetic peptide directed towards the N-terminal region of Human PSME3

Application

Anti-PSME3 (AB1) antibody produced in rabbit is suitable for western blotting at a concentration of 0.25μg/ml and for immunohistochemistry at a concentration of 4-8μg/ml.

Biochem/physiol Actions

Proteasomes are protein complexes that facilitate the degradation of damaged proteins by proteolysis. Proteasomes are located throughout the eukaryotic cells but primarily localized in nucleus. They are composed of 2 complexes, a 20S core and a 19S regulator. The modified proteasome referred to as immunoproteasome contains an alternate regulator that is 11S regulator or PA28 against 19S regulator. PSME3 gene encodes the gamma subunit of the 11S regulator. REG-gamma (also known as PA28-gamma) stimulates the trypsin-like catalytic subunit of the proteasome but inhibits the chymotrypsin-like and postglutamyl-preferring (PGPH) subunits. REG-gamma interact with both MDM2 and p53 proteins and stimulates ubiquitination- and MDM2-dependent proteasomal degradation of p53 which in turn restricts its accumulation and inhibits apoptosis after DNA damage.

Sequence

Synthetic peptide located within the following region: PILNIHDLTQIHSDMNLPVPDPILLTNSHDGLDGPTYKKRRLDECEEAFQ

Physical form

Purified antibody supplied in 1x PBS buffer with 0.09% (w/v) sodium azide and 2% sucrose.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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J M Peters et al.
The Journal of biological chemistry, 269(10), 7709-7718 (1994-03-11)
The 26 S proteolytic complex ("26 S proteasome") is a macromolecular assembly thought to be involved in ATP- and ubiquitin-dependent protein degradation in the cytoplasm of higher eukaryotic cells. This complex is composed of one 20 S cylinder particle (multicatalytic
Xiaolin Gao et al.
Archives of biochemistry and biophysics, 425(2), 158-164 (2004-04-28)
The proteasome activation properties of recombinant REG gamma molecules depend on purification procedures. Prior to ammonium sulfate precipitation recombinant REG gamma activates the trypsin-like catalytic subunit of the proteasome; afterwards it activates all three catalytic subunits. The expanded activation specificity
Zhuo Zhang et al.
The EMBO journal, 27(6), 852-864 (2008-03-01)
Downregulation of p53 by MDM2-mediated proteasomal degradation makes cells resistant to apoptosis. The MDM2-p53 interaction is well characterized, but the mechanisms that regulate the interaction are not well understood. Here, we show that PA28gamma, a proteasome activator that inhibits apoptosis

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