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All intracellular proteins and many extracellular proteins are continually “turning over;” i.e. , they are being hydrolyzed to… Expand ABSTRACT Two distinctive colony morphologies were noted in a collection of Pseudomonas aeruginosa transposon insertion mutants… Expand Because of its stringent sequence specificity, the catalytic domain of the nuclear inclusion protease from tobacco etch virus… Expand Antimicrobial peptides encompass a wide variety of structural motifs. Many peptides have alpha-helical structures. The majority… Expand Quorum sensing in lactic acid bacteria (LAB) involves peptides that are directly sensed by membrane-located histidine kinases… Expand We have used C-terminal domain mutants to further define the role of interactions of progelatinase A and membrane type 1 matrix… Expand The historical development of the cell death concept is reviewed, with special attention to the origin of the terms necrosis… Expand Latent human fibroblast collagenase (HFC) can be activated by a variety of seemingly disparate means. In addition to the well… Expand The term apoptosis is proposed for a hitherto little recognized mechanism of controlled cell deletion, which appears to play a… Expand Summary Several actinomycin D (AD)-resistant sublines maintained at 0.1, 1.0, and 10.0 µg/ml AD and exhibiting an increase in… Expand