Proteinases participating in the processing and activation of prolegumain in primary cultured rat macrophages
-
F. Lecaille
Abstract
The mammalian legumain is a recently identified lysosomal cysteine proteinase belonging to the clan CD and homologous to plant legumain. This enzyme has the characteristic of specifically hydrolyzing peptide bonds after asparagine residues. As in the case of papain-type cysteine proteinases, legumain is synthesized as an inactive zymogen, and processed into a mature form localized in lysosomes. However, the mechanism of its activation remains unclear. In this study, we analyze which types of proteinases may participate in the processing of legumain in rat primary cultured macrophages using various proteinase inhibitors after 24 h treatment with Bafilomycin A1, a vacuolar ATPase inhibitor. The processing of legumain in macrophages was accomplished by papain-type cysteine proteinases other than cathepsin B.
Copyright © 2004 by Walter de Gruyter GmbH & Co. KG
Articles in the same Issue
- Highlight: 3rd General IPS Meeting/International Conference on Protease inhibitors
- Colon cancer: genomics and apoptotic events
- Interaction of calpastatin with calpain: a review
- Cathepsin L and Arg/Lys aminopeptidase: a distinct prohormone processing pathway for the biosynthesis of peptide neurotransmitters and hormones
- Searching for the most effective screening system to identify cell-active inhibitors of β-secretase
- Accumulation of mini-plasmin in the cerebral capillaries causes vascular invasion of the murine brain by a pneumotropic influenza A virus: implications for influenza-associated encephalopathy
- Protease degradomics: mass spectrometry discovery of protease substrates and the CLIP-CHIP, a dedicated DNA microarray of all human proteases and inhibitors
- Human cathepsin F: expression in baculovirus system, characterization and inhibition by protein inhibitors
- Proteinases participating in the processing and activation of prolegumain in primary cultured rat macrophages
- Human kallikrein 6 activity is regulated via an autoproteolytic mechanism of activation/inactivation
- Growth phase-dependent production of a cell wall-associated elastinolytic cysteine proteinase by Staphylococcus epidermidis
- Evidence for an interaction between leptin, T cell costimulatory antigens CD28, CTLA-4 and CD26 (dipeptidyl peptidase IV) in BCG-induced immune responses of leptin- and leptin receptor-deficient mice
- Characterisation of a highly specific, endogenous inhibitor of cysteine protease from Staphylococcus epidermidis, a new member of the staphostatin family
- Identification of cysteine protease inhibitors that belong to cystatin family 1 in the cellular slime mold Dictyostelium discoideum
- High molecular weight kininogen as substrate for cathepsin B
- 'Dipeptidyl peptidase-IV activity and/or structure homologs' (DASH) in growth-modulated glioma cell lines
- The crystal structure of human dipeptidyl peptidase IV (DPPIV) complex with diprotin A
- Metalloproteases with EGF, CUB, and thrombospondin-1 domains function in molting of Caenorhabditis elegans
Articles in the same Issue
- Highlight: 3rd General IPS Meeting/International Conference on Protease inhibitors
- Colon cancer: genomics and apoptotic events
- Interaction of calpastatin with calpain: a review
- Cathepsin L and Arg/Lys aminopeptidase: a distinct prohormone processing pathway for the biosynthesis of peptide neurotransmitters and hormones
- Searching for the most effective screening system to identify cell-active inhibitors of β-secretase
- Accumulation of mini-plasmin in the cerebral capillaries causes vascular invasion of the murine brain by a pneumotropic influenza A virus: implications for influenza-associated encephalopathy
- Protease degradomics: mass spectrometry discovery of protease substrates and the CLIP-CHIP, a dedicated DNA microarray of all human proteases and inhibitors
- Human cathepsin F: expression in baculovirus system, characterization and inhibition by protein inhibitors
- Proteinases participating in the processing and activation of prolegumain in primary cultured rat macrophages
- Human kallikrein 6 activity is regulated via an autoproteolytic mechanism of activation/inactivation
- Growth phase-dependent production of a cell wall-associated elastinolytic cysteine proteinase by Staphylococcus epidermidis
- Evidence for an interaction between leptin, T cell costimulatory antigens CD28, CTLA-4 and CD26 (dipeptidyl peptidase IV) in BCG-induced immune responses of leptin- and leptin receptor-deficient mice
- Characterisation of a highly specific, endogenous inhibitor of cysteine protease from Staphylococcus epidermidis, a new member of the staphostatin family
- Identification of cysteine protease inhibitors that belong to cystatin family 1 in the cellular slime mold Dictyostelium discoideum
- High molecular weight kininogen as substrate for cathepsin B
- 'Dipeptidyl peptidase-IV activity and/or structure homologs' (DASH) in growth-modulated glioma cell lines
- The crystal structure of human dipeptidyl peptidase IV (DPPIV) complex with diprotin A
- Metalloproteases with EGF, CUB, and thrombospondin-1 domains function in molting of Caenorhabditis elegans