VU101: Anti-Ubiquitin Antibody (MAb; clone VU-1)

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Specifications

LifeSensors has developed several monoclonal antibodies that recognize polyubiquitylated proteins and free ubiquitin. VU-1 has been shown to recognize all ubiquitin linkages (mono, K6, K11, K27, K29, K33, K48, K63, and linear) by Western blotting. VU-1 is an excellent antibody for immunostaining applications generating robust ubiquitin detection and low background with an ability to detect subcellular ubiquitin localization. Ubiquitin (Ub), a highly conserved, 8 kDa polypeptide present in all eukaryotic cells, is conjugated to the ε-amino group of lysine residues in the target protein through the sequential action of three enzymes, an E1 Ub activating enzyme, an E2 conjugating enzyme, and an E3 ligase. In addition, the seven lysines within Ub itself can serve as Ub acceptors leading to the formation of polyubiquitin chains. Among these K48 and K63 linkages are well characterized. K48-linked polyubiquitylation targets proteins for proteasomal degradation whereas K63 linkages regulate signaling events, receptor endocytosis and immune responses. Polyubiquitin linkages at other lysines are less prominent and their physiological role remains largely unknown.

Info

Host Mouse
Quantity 50 µg, 250 µg
Concentration Variable
Storage -20°C; Avoid freeze/thaw cycles

Additional information

Weight

50 µg, 250 µg

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  • Imunnohistochemical staining: 1:200 – 1:500
  • Western blots: 1:1000 – 1:10,000 — Please note: To obtain maximum sensitivity, the membrane should be treated with 0.5% glutaraldehyde prior to exposure to the primary antibody
  • Immunohistochemistry using chromogenic substrates with a low backgound (see information on the Datasheet);
  • Immunofluorescence in tissue sections and cell culture;
  • Western blot analysis to detect mono- and polyubiquitinated proteins as well as free ubiquitin