  aminoglycoside is a medicinal and bacteriologic category of traditional gram-negative antibacterial therapeutic agents that inhibit protein synthesis and contain as a portion of the molecule an amino-modified glycoside (sugar);e.g., see www.merriam-webster.com/medical/aminoglycoside: "any of a group of antibiotics (as streptomycin and neomycin) that inhibit bacterial protein synthesis and are active especially against gram-negative bacteria".m-p mingeot-leclercq, y glupczynski & pm tulkens, 1999, aminoglycosides: activity and resistance, antimicrob. agents chemother. 43(4) 727-737. the term can also refer more generally to any organic molecule that contains aminosugar substructures. aminoglycoside antibiotics display bactericidal activity against gram-negative aerobes and some anaerobic bacilli where resistance has not yet arisen, but generally not against gram-positive and anaerobic gram-negative bacteria.me levison, md, 2012, aminoglycosides, the merck manual , accessed 22 february 2014. they include the first-in-class aminoglycoside antibiotic streptomycin (images at right) derived from streptomyces griseus, the earliest modern agent used against tuberculosis, and an example that lacks the common 2-deoxystreptamine moiety (image right, below) present in many other class members. other examples include the deoxystreptamine-containing agents kanamycin, tobramycin, gentamicin, and neomycin (see below). 75px|thumb|right|2-deoxystrept-amine, 2d representation, oxygens, nitrogens (with attached hydrogens) in red, blue. ==nomenclature== aminoglycosides that are derived from bacteria of the streptomyces genus are named with the suffix mycin, whereas those that are derived from micromonospora are named with 
Aminoglycoside_antibiotics