Anti-Ubiquitinylated proteins Antibody, clone FK2

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.

Recognizes mono- and poly ubiquitinylated proteins, but not free ubiquitin.

Poly-ubiquitinylated-lysozyme.

Research Category
Protein Trafficking

Research Sub Category
Ubiquitin & Ubiquitin Metabolism

This Anti-Ubiquitinylated proteins Antibody, clone FK2 has been published and validated for use in ELISA, Immunofluorescence (IF), Immunoprecipitation (IP) and Western Blotting (WB) for the detection of Ubiquitinylated proteins.

100 µL of purified immunoglobulin in PBS, pH 7.4 containing 50% glycerol and 0.09% sodium azide. Dilute to working strength with phosphate buffered saline pH 7.2-7.4.

Format: Purified

Stable for 1 year at -20°C from date of shipment for up to 12 months.

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

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