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Proteasome

Proteasome

Proteasomes are enormous protein complexes found in all eukaryotes, archaea, and some bacteria. They are found in the cytoplasm and nucleus of eukaryotes. The proteasome's primary job is to break down unwanted or damaged proteins through the process of proteolysis, which is a peptide bond-breaking chemical reaction. Proteases are enzymes that carry out these types of reactions.A key mechanism by which cells control the concentration of specific proteins and destroy improperly folded proteins includes proteasomes. When a protein is degraded, it produces peptides that are seven to eight amino acids long. These peptides can then be further broken down into amino acids and used to create new proteins. A tiny protein called ubiquitin marks proteins for degradation. The tagging process is sped up by ubiquitin ligases, an enzyme family. Once a protein has one ubiquitin molecule attached to it, other ligases know to attach more ubiquitin molecules. As a result, a polyubiquitin chain forms, which the proteasome binds to and uses to break down the tagged protein.

Proteasome related products

Structure Cat No. Product Name CAS No. Product Description
PD 151746 V73364 PD 151746 181765-30-0 PD151746 is a calpain inhibitor that can suppress u-calpain (Ki = 0.26 ± 0.03 μM) with 20 times higher selectivity than m-calpain (Ki = 5.33 ± 0.77μM).
Phepropeptin A V105968 Phepropeptin A 396729-23-0 Phepropeptin A is a microbial secondary metabolite and proteasome inhibitor with IC50 of 21 μg/mL.
Phepropeptin B V105969 Phepropeptin B 396729-24-1 Phepropeptin B is a microbial secondary metabolite and proteasome inhibitor with IC50 of 11 μg/mL.
Phepropeptin C V105970 Phepropeptin C 396729-25-2 Phepropeptin C is a microbial secondary metabolite and proteasome inhibitor with IC50 of 12.5 μg/mL.
Phepropeptin D V105971 Phepropeptin D 396729-26-3 Phepropeptin D is a microbial secondary metabolite and proteasome inhibitor with IC50 of 7.8 μg/mL.
Proteasome β2c/i-IN-1 V73374 Proteasome β2c/i-IN-1 2322333-75-3 Proteasome β2c/i-IN-1 (compound 37) is a subunit-selective inhibitor of the proteases β2c and β2i.
Proteasome-IN-5 V73369 Proteasome-IN-5 1613134-34-1 Proteasome-IN-5 (compound 5) is a protease inhibitor.
Proteasome-IN-7 V143418 Proteasome-IN-7 Proteasome-IN-7 is an epoxy ketone macrocyclic peptide proteasome inhibitor (IC50 value of 37.92 nM against the 20S proteasome ChT-L subunit).
Proteasome-IN-8 V114748 Proteasome-IN-8 3097658-48-2 Proteasome inhibitor-1 (compound 130) is a proteasome inhibitor.
RA183 V143740 RA183 2649154-64-1 RA183 is a proteasome ligand that can be used to synthesize CAP-TAC (proteasome cap-targeted chimera), such as RAPRMT5.
RA183-CO-C6-NHCO-NH-Boc V143741 RA183-CO-C6-NHCO-NH-Boc RA183-CO-C6-NHCO-NH-Boc is a proteasome ligand-linker conjugate that can be used to synthesize CAP-TAC (proteasome cap-targeted chimera), such as RAPRMT5.
RA190-PEG1-NH2 V143742 RA190-PEG1-NH2 2375455-68-6 RA190-PEG1-NH2 is a derivative of RA190 and is a proteasome ligand.
RAFKBP12 V143788 RAFKBP12 2375455-59-5 RAFKBP12 is a FKBP12 CAP-TAC (protease complex cap-targeted chimera) degrader.
RAMB4(PTP1B-IN-9) V2175 RAMB4(PTP1B-IN-9) 145888-79-5 RAMB4 (PTP1B-IN-9) is a novel and potent ubiquitin-proteasome system (UPS)-stressor.
RAPRMT5 V143847 RAPRMT5 2721998-42-9 RAPRMT5 is a PRMT5 CAP-TAC (protease complex targeting chimera) degrader.
Sadopeptins A V81349 Sadopeptins A Sadopeptins A is a naturally occurring compound extracted from Streptomyces sp.
Sadopeptins B V81350 Sadopeptins B Sadopeptins B is a naturally occurring compound extracted from Streptomyces sp.
Suc-Ala-Ala-Pro-Phe-SBzl V73375 Suc-Ala-Ala-Pro-Phe-SBzl 80651-95-2 Suc-Ala-Ala-Pro-Phe-SBzl works as a substrate for rat intestinal mast cell protease (RMCP I), rat skeletal muscle mast cell protease (RMCP II), and chymotrypsin (Chymotrypsin) .
TCL1 V145675 TCL1 875165-39-2 TCL1 is a selective non-covalent inhibitor that targets the Pru domain of the Rpn-13 subunit in the proteasome 19S regulatory particle (19S RP), with an IC50 value of approximately 26 μM.
TIR-199 V115395 TIR-199 1514925-83-7 TIR-199 is a novel, highly specific dual proteasome inhibitor that effectively inhibits the PSMB5 subunit of the constitutive proteasome and the PSMB8 subunit of the immunoproteasome.
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