Insect immunity: a gene system for antibacterial proteins
نویسندگان
چکیده
منابع مشابه
Insect immunity: evolutionary roots of the mammalian innate immune system.
The innate immune system of vertebrates was considered as a survival of ancient antimicrobial systems that have become obsolescent by the emergence of adaptive immunity. Despite the fact that innate immunity lacks the elegance of genetic recombination mechanism to produce trillions of specific clones of immune cells and shows no memory, that view is out of date. Today, the innate immune system ...
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Insects express 3 lines of protection from infections and invasions. Their cuticles and peritrophic membranes are physical barriers. Infections and invasions are quickly recognized within insect bodies, and recognition launches 2 lines of innate immune reactions. Humoral reactions involve induced synthesis of antimicrobial peptides, the bacteriolytic enzyme lysozyme and activation of the prophe...
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Herbivorous insects use diverse feeding strategies to obtain nutrients from their host plants. Rather than acting as passive victims in these interactions, plants respond to herbivory with the production of toxins and defensive proteins that target physiological processes in the insect. Herbivore-challenged plants also emit volatiles that attract insect predators and bolster resistance to futur...
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Kus proteins and many related proteins possess the C-terminal motif C‘ys-AAX. where A is an aliphatic ;imino acid and X is itny iiniino acid. ‘I’his sequence directs ii prenyltransferiise. fh-nesyltransferase in the c;ise of ltas and geranylger;inyItransferase in most other ltas-related proteins. t o prenylate the cysteine residue 11-01. The nitture of the amino acid residue X appears t o deter...
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NF-kappa B/Rel transcription factors are central regulators of mammalian immunity and are also implicated in the induction of cecropins and other antibacterial peptides in insects. We identified the gene for Relish, a compound Drosophila protein that, like mammalian p105 and p100, contains both a Rel homology domain and an I kappa B-like domain. Relish is strongly induced in infected flies, and...
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ژورنال
عنوان ژورنال: Memórias do Instituto Oswaldo Cruz
سال: 1987
ISSN: 0074-0276
DOI: 10.1590/s0074-02761987000700022