C5a peptidase

if anybody can please help me with this it would be really appreciated: how do cells prevent their own peptidases from digesting their own proteins and killing themselves? i think it has something to do with peptidase inhibitors but not exactly sure if its right.... could ...

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... of fusion constructs defined three types of export sequence: (1) non-cleavable, membrane-spanning sequences, (2) signal peptides with signal peptidase (SPase) I-like cleavage sites, and (3) signal peptides with SPase II-like lipoprotein-cleavage sites which, like most other mycoplasmal lipoprotein ...

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peroxidase is an enzyme that breaks down toxis hydrogen peroxide in your liver into water and oxygen. IN the liver, pH is of normal cell pH. Peptidase on the other hand catalyses the breakdown of protein into amino acids inside the stomach. The stomach walls release acid which provides an optimal ...

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... organisms use a protease which recognizes “usual” L-amino acids. 2. The oligopeptide bridges of peptidoglycan contain only D-amino acids. Then L-peptidase cannot digest D-amino acid bridge. Let’s look at Bacteria cell wall. Chemical structure of peptidoglycan: http://www.biology-online.org/biology-forum/userfiles/pg_154.jpg ...

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brick by brick demolition style.... "each artificial peptidase is engineered so that the class of residue it is designed to attack is not exposed on its own external physical surface [112] -- that is, each artificial enzyme minimally exhibits strong ...

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