protein

Recombinant Human Ubiquitin Lys 48 to Arg 48 mutation

MBS142927

0.005 mg

140 USD

Recombinant Protein

Recombinant Human Ubiquitin Lys 48 to Arg 48 mutation

Ubiquitin Lys 48 to Arg 48 mutation

Ubiquitin K48R Human; Ubiquitin K48R Human Recombinant; Ubiquitin; Ribosomal Protein S27a; CEP80; UBA80; UBCEP1; UBCEP80; HUBCEP80; RPS27A; Ubiquitin K48R; Ubiquitin K48R

ubiquitin-60S ribosomal protein L40; ubiquitin A-52 residue ribosomal protein fusion product 1

UBA52; L40; CEP52; RPL40; HUBCEP52

E Coli

Greater than 95% as determined by SDS-PAGE.

Diluted in PBS plus 5% glycerol. Sterile Filtered clear solution.

Store vial at -20 degree C to -80 degree C. When stored at the recommended temperature, this protein is stable for 12 months.Please prevent freeze-thaw cycles.

RECOMBINANT & NATURAL PROTEINS; Recombinant Proteins; Ubiquitin

Description: Recombinant human ubiquitin featuring a Lys 48 to Arg48 mutation is useful for the reduction of poly-Ub chain length and conjugation rates.Ubiquitin K48R is expressed in E Coliand purified by proprietary chromatographic techniques. Introduction: Ubiquitin is a highly conserved 76 amino acid protein expressed in all eukariotes. Ub is found either in free form or conjugated to proteins as monomer or as chain of ubiquitin molecules. The most well characterized consequence of polyubiquitination is substrate degradation, while mono-ubiquitinated proteins are not degraded. Ubiquitin attachment to protein substrate is a complex process involving a ubiquitin activating enzyme (E1), a ubiquitin conjugating enzyme (E2) and a ubiquitin protein ligase (E3). The first ubiquitin moiety is transferred to the e-NH2 group of a Lys residue of the protein substrate to generate an isopeptide bond. In successive reactions, a poly ubiquitin chain is synthesized by processive transfer of additional activated moieties to Lys48 of the previously conjugated ubiquitin molecule. Ubiquitin K48R prevents the formation of poly ubiquitin chains via Lys48 linkages with mono ubiquitin molecules, avoiding the degradation of protein substrates.

51703339

P62988.1

P62988

AMER1 Mutants Destabilize The Destruction Complex Pathway (1127621); APC Truncation Mutants Are Not K63 Polyubiquitinated Pathway (1127616); APC Truncation Mutants Have Impaired AXIN Binding Pathway (1127617); APC-Cdc20 Mediated Degradation Of Nek2A Pathway (1127551); APC/C-mediated Degradation Of Cell Cycle Proteins Pathway (105825); APC/C:Cdc20 Mediated Degradation Of Cyclin B Pathway (105832); APC/C:Cdc20 Mediated Degradation Of Securin Pathway (105833); APC/C:Cdc20 Mediated Degradation Of Mitotic Proteins Pathway (105831); APC/C:Cdh1 Mediated Degradation Of Cdc20 And Other APC/C:Cdh1 Targeted Proteins In Late Mitosis/early G1 Pathway (105835); APC:Cdc20 Mediated Degradation Of Cell Cycle Proteins Prior To Satisfation Of The Cell Cycle Checkpoint Pathway (1127549)

Ubiquitin is a highly conserved nuclear and cytoplasmic protein that has a major role in targeting cellular proteins for degradation by the 26S proteosome. It is also involved in the maintenance of chromatin structure, the regulation of gene expression, and the stress response. Ubiquitin is synthesized as a precursor protein consisting of either polyubiquitin chains or a single ubiquitin moiety fused to an unrelated protein. This gene encodes a fusion protein consisting of ubiquitin at the N terminus and ribosomal protein L40 at the C terminus, a C-terminal extension protein (CEP). Multiple processed pseudogenes derived from this gene are present in the genome. [provided by RefSeq, Jul 2008]

UBA52: the gene (UBA52) that encodes this protein is one of four that encode for ubiquitin: UBC, UBB, UBA52 and RPS27A. UBB and UBC genes code for a polyubiquitin precursor with exact head to tail repeats, the number of repeats differ between species and strains. UBA52 and RPS27A genes code for a single copy of ubiquitin fused to the ribosomal proteins L40 and S27a, respectively. The RPS27A gene product is cleaved into the following 2 chains: ubiquitin (amino acids 1-76) and the 60S ribosomal protein L40 (77 ? 128). Ubiquitin is a peptide 76 amino acids in length that can be covalently attached to target lysines either as a monomer or as a lysine-linked polymer. Hundreds of ubiquitin ligases and hydrolases have been identified, implicating ubiquitin as a major regulatory element in many crucial cellular systems. It can be covalently bound to target proteins via an isopeptide bond either as a monomer (monoubiquitin), a polymer linked via different Lys residues of the ubiquitin (polyubiquitin chains) or a linear polymer linked via the initiator Met of the ubiquitin (linear polyubiquitin chains). Polyubiquitin chains, when attached to a target protein, have different functions depending on the Lys residue of the ubiquitin that is linked: Lys-6-linked may be involved in DNA repair; Lys-11-linked is involved in ERAD (endoplasmic reticulum-associated degradation) and in cell-cycle regulation; Lys-29-linked is involved in lysosomal degradation; Lys-33-linked is involved in kinase modification; Lys-48-linked is involved in protein degradation via the proteasome; Lys-63-linked is involved in endocytosis, DNA-damage responses as well as in signaling processes leading to activation of the transcription factor NF-kappa-B. Linear polymer chains formed via attachment by the initiator Met lead to cell signaling. Ubiquitin is usually conjugated to Lys residues of target proteins, however, in rare cases, conjugation to Cys or Ser residues has been observed. When polyubiquitin is free (unanchored-polyubiquitin), it also has distinct roles, such as in activation of protein kinases, and in signaling. At the protein level, it is not possible to easily determine which of the four genes encoded a given ubiquitin chain. Protein type: Translation; Ribosomal. Chromosomal Location of Human Ortholog: 19p13.1-p12. Cellular Component: nucleoplasm; lysosomal membrane; plasma membrane; ribosome; endosome membrane; cytosol. Molecular Function: protein binding; structural constituent of ribosome. Biological Process: circadian rhythm; SRP-dependent cotranslational protein targeting to membrane; I-kappaB kinase/NF-kappaB cascade; negative regulation of ubiquitin-protein ligase activity during mitotic cell cycle; protein polyubiquitination; nerve growth factor receptor signaling pathway; viral reproduction; activation of MAPK activity; positive regulation of apoptosis; stress-activated MAPK cascade; toll-like receptor 3 signaling pathway; endosome transport; DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest; T cell receptor signaling pathway; activation of NF-kappaB transcription factor; toll-like receptor 5 signaling pathway; regulation of apoptosis; antigen processing and presentation of peptide antigen via MHC class I; transforming growth factor beta receptor signaling pathway; translational initiation; antigen processing and presentation of exogenous peptide antigen via MHC class I; JNK cascade; viral transcription; G2/M transition of mitotic cell cycle; toll-like receptor 4 signaling pathway; regulation of interferon type I production; glycogen biosynthetic process; positive regulation of I-kappaB kinase/NF-kappaB cascade; fibroblast growth factor receptor signaling pathway; transcription, DNA-dependent; Notch receptor processing; antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent; glucose metabolic process; virus assembly; toll-like receptor 2 signaling pathway; translational elongation; carbohydrate metabolic process; viral protein processing; mRNA catabolic process, nonsense-mediated decay; positive regulation of transcription from RNA polymerase II promoter; toll-like receptor 9 signaling pathway; negative regulation of interferon type I production; negative regulation of apoptosis; G1/S transition of mitotic cell cycle; negative regulation of epidermal growth factor receptor signaling pathway; positive regulation of ubiquitin-protein ligase activity during mitotic cell cycle; translation; apoptosis; pathogenesis; negative regulation of transcription from RNA polymerase II promoter; viral infectious cycle; translational termination; toll-like receptor 10 signaling pathway; anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process; positive regulation of interferon type I production; transmembrane transport; epidermal growth factor receptor signaling pathway; transcription initiation from RNA polymerase II promoter; Notch signaling pathway; cytokine and chemokine mediated signaling pathway; MyD88-independent toll-like receptor signaling pathway; protein modification process; DNA repair; MyD88-dependent toll-like receptor signaling pathway; cellular protein metabolic process; regulation of ubiquitin-protein ligase activity during mitotic cell cycle; toll-like receptor signaling pathway; innate immune response; gene expression; mitotic cell cycle; negative regulation of transforming growth factor beta receptor signaling pathway

0.005 mg

140 USD

0.02 mg

205

1 mg

2750