Bacitracin is a mixture of related cyclic peptides produced by organisms of the licheniformis group of Bacillus subtilis var Tracy, first isolated in 1945. These peptides disrupt both gram positive and gram negative bacteria by interfering with cell wall and peptidoglycan synthesis.acitracin is composed of a mixture of related compounds with varying degrees of antibacterial activity. Notable fractions include bacitracin A, A1, B, B1, B2, C, D, E, F, G, and X. Bacitracin A has been found to have the most antibacterial activity.
The university operates two medical schools (University of Arizona College of Medicine - Tucson and the University of Arizona College of Medicine - Phoenix) and is affiliated with the region's only academic medical centers (Banner - University Medical Center Tucson and Banner - University Medical Center Phoenix).
Undergraduate Tuition. University of Arizona tuition is $10,390 per year for in-state residents. This is 57% more expensive than the national average public four year tuition of $6,614. The cost is 29% cheaper than the average Arizona tuition of $14,666 for 4 year colleges. Tuition ranks 8th in Arizona amongst 4 year colleges for affordability and is the 29th most expensive 4 year college in the state. If attending from out-of-state, the tuition is $31,617 which represents a 204% premium.