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Literature summary for 3.4.17.2 extracted from

  • Chatterjee, S.; Ehrenshaft, M.; Bhattacharjee, S.; Deterding, L.; Bonini, M.; Corbett, J.; Kadiiska, M.; Tomer, K.; Mason, R.
    Immuno-spin trapping of a post-translational carboxypeptidase B1 radical formed by a dual role of xanthine oxidase and endothelial nitric oxide synthase in acute septic mice (2009), Free Radic. Biol. Med., 46, 454-461.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
allopurinol addition of allopurinol alone and allopurinol plus 5,5-dimethyl-1-pyrroline N-oxide results in increased CPB1 activity Mus musculus

Inhibitors

Inhibitors Comment Organism Structure
lipopolysaccharide lipopolysaccharide treatment significantly decreases carboxypeptidase B activity. Administration of 5,5-dimethyl-1-pyrroline N-oxide to LPS-treated mice alleviates this loss of enzyme activity Mus musculus

Organism

Organism UniProt Comment Textmining
Mus musculus
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
nitrosylation a post-translational DMPO-nitrone adduct formed with CPB1 in mice treated with a single bolus dose of lipopolysaccharide is detected Mus musculus

Source Tissue

Source Tissue Comment Organism Textmining
spleen
-
Mus musculus
-

Synonyms

Synonyms Comment Organism
Carboxypeptidase B1
-
Mus musculus

General Information

General Information Comment Organism
metabolism nitrone spin-trap 5,5-dimethyl-1-pyrroline N-oxide (DMPO) and a combination of immuno-spin trapping and mass spectrometry is used to identify in vivo products of radical reactions in mice. Dose-dependent production of 5,5-dimethyl-1-pyrroline N-oxide-CPB1 adducts are detected in the spleens of mice treated with lipopolysaccharide and also under normal physiological conditions. Treatments with inhibitors and experiments with knock-out mice indicate that xanthine oxidase and endothelial nitric oxide synthase are important sources of the reactive species that lead to CPB1 adduct formation Mus musculus