Term
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Definition
-'competent' bacteria
-take up floating DNA |
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Term
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Definition
-infection by bacteriophage
-virus may incorporate host DNA into bacteriophage capsid via homologous recombination
-ex.vibrio cholerae-code for exotoxin |
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Term
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Definition
-bacterial mating
-dependent on plasmids containing TRA genes
-encode for sex pilus assembly (F-pilus)
-DNA is transferred via sex pilus
-can transfer antibiotic resistance genes |
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Term
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Definition
-movement of DNA from DNA molecule to DNA molecule
-plasmid to genome, virus to plasmid, within plasmid
-movement due to transposable elements (jumping genes)
-transposase is enzyme responsible for excision and insertion |
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Term
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Definition
-gram negative
-serotypes defined by O and H (flagellar) antigens
-most common fermenter in animal GI tract
-common cause of diarrhea
-fecal oral transmission |
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Term
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Definition
-produce NO exotoxins
-inflammatory response triggers prostaglandins triggers cAMP triggers fluid secretion |
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Term
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Definition
-gram positive
-B binds
-internalization
-releases A
-inactivates EF-2
-inhibits protein synthesis
-cell death
-damages? |
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Term
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Definition
-curved gram negative
-B binds
-internalization of A
-activates AC
-increases cAMP
-releases ions/water |
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Term
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Definition
-gram positive
-anthrax toxin (spores)
-edema-AC activity, increases cAMP
-lethal-protease activity, dec. MAPKK, apoptosis |
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Term
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Definition
-gram positive
-tetanospasmin toxin inhibits inhibtor transmitter
-spastic paralysis |
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Term
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Definition
-gram positive
-toxin blocks release of ACh from vesicles
-flaccid paralysis |
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Term
| Enteropathogenic E. coli (EPEC) |
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Definition
-do not produce toxins
-virulence factor is Intimin (adhesion)
-Tir codes for receptor for Intimin
-loss of microvilli in small intestine (loss of absorption)
-A/E lesions? |
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Term
| bacterial entry zipper mechanism |
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Definition
-bind receptors
-engulf by actin |
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Term
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Definition
-type 3 secretion
-protein is sent to activate GTPase/actin polymerization
-engulfed |
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