منابع مشابه
Carnosinases, their substrates and diseases.
Carnosinases are Xaa-His dipeptidases that play diverse functions throughout all kingdoms of life. Human isoforms of carnosinase (CN1 and CN2) under appropriate conditions catalyze the hydrolysis of the dipeptides carnosine (β-alanyl-L-histidine) and homocarnosine (γ-aminobutyryl-L-histidine). Alterations of serum carnosinase (CN1) activity has been associated with several pathological conditio...
متن کاملCaspases
U ncontrolled lymphoproliferation is a characteristic feature of lymphomas and leukemias. Nonmalignant lym-phoproliferative diseases are also observed in humans as well as in lpr (lymphoproliferation) and gld (generalized lymphad-enopathy) mice. The discoveries that spontaneous mutations of Fas (APO-1/CD95) or its ligand (FasL) were associated with the lpr and gld phenotypes led to a satisfying...
متن کاملCaspases: evolutionary aspects of their functions in vertebrates
Caspases (cysteine-dependent aspartyl-specific protease) belong to a family of cysteine proteases that mediate proteolytic events indispensable for biological phenomena such as cell death and inflammation. The first caspase was identified as an executioner of apoptotic cell death in the worm Caenorhabditis elegans. Additionally, a large number of caspases have been identified in various animals...
متن کاملCellular concentrations of enzymes and their substrates.
The activity of crude and pure enzyme preparations as well as the molecular weight of these enzymes were obtained from the literature for several organisms. From these data enzyme concentrations were calculated and compared to the concentration(s) of their substrates in the same organism. The data are expressed as molar ratios of metabolite concentration to enzyme site concentration. Of the 140...
متن کاملDeath without caspases, caspases without death.
Apoptosis is a conserved cell-death process displaying characteristic morphological and molecular changes including activation of caspase proteases. Recent work challenges the accepted roles of these proteases. New investigations in mice and the nematode Caenorhabditis elegans suggest that there could be caspase-independent pathways leading to cell death. In addition, another type of cell death...
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ژورنال
عنوان ژورنال: Cell Death & Differentiation
سال: 2017
ISSN: 1350-9047,1476-5403
DOI: 10.1038/cdd.2017.44