Evidence 1
Activity
Activity
Antibacterial
Source & Reference
dbAMP
DRAMP
Other
| Source Activity Label | Source Definition |
|---|---|
| Antibacterial |
dbAMP
classified as Antibacterial under the Anti-bacterial function class.
|
It had been puzzling regarding the role of this defensin. Recent studies revealed two mechanisms: First, HD-6 is a true AMP that kills bacteria under a reduced environmental conditions (2mM DTT in vitro) ( Schroeder BO et al., 2014 ). In other words, disulfide bonds are not required for antimicrobial activity. Activity was observed against anaerobic gut commensals (B. adolescentis Ni3,29c, pH 7.4 only
L. acidophilus, B. breve, B. longum, S. salivarius ssp thermophilus), but not against some pathogenic strains (E.coli, B.vulgatus, L.fermentum). An APD recommended reading. Second, HD6 is now shown to control enteric bacterial pathogens in vitro and in vivo by binding to bacterial surface proteins. The peptide appears to be able to form fibrils and nanonets that surround and entangle bacteria. These findings support a key role for HD6 in protecting the small intestine against invasion by diverse enteric pathogens and may explain the conservation of HD6 throughout Hominidae evolution Science 2012 .