The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Protein degradation proceeds by formation of a poly ubiquitin chain synthesized by processive transfer of additional activated moieties to Lys48 of a previously conjugated ubiquitin molecule.
This mutant protein prevents the formation of poly ubiquitin chains via Lys48 linkages with mono ubiquitin molecules, avoiding the degradation of protein substrates. It is useful for the reduction of poly-Ub chain length and conjugation rates.
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Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Constituents: 5% Glycerol, PBS
Epididymis secretory protein Li 50
HEL S 50
Function: Ubiquitin exists either covalently attached to another protein, or free (unanchored). When covalently bound, it is conjugated 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.
Similarity: Belongs to the ubiquitin family.
Contains 3 ubiquitin-like domains.
Cell Membrane, Cytoplasmic and Nuclear
Recombinant Human Ubiquitin (mutated K48) protein (ab70113) 使用論文
has not yet been referenced specifically in any publications.