The amino acids

1. arginine is highly concentrated in phagosomes as part of so-called defensins

Hexose Monophosphate shunt  (aka Pentose Phosphate Pathway)

• utilizes pentoses which are derived from glucose. Glucose 6 Phosphate is catalyzed to a lactone by Glucose-6-phosphate dehydrogenase aka G6PD an enzyme.
• produces NADPH aka reduced nicotinamide-adenine dinucleotide phosphate
• electrons pass from NADPH to an FAD containing membrane flavoprotein and thence to cytochrome (cytb558) which reduces molecular oxygen to bactericidal superoxide radicals
• thiamine pyrophosphate functions in the utilization of pentose in the hexose monophosphate shunt in the production of NADPH
• riboflavin functions in the formation of FAD and FMN

Gludocse-6 phosphate dehydrogenase  G6PD deficiency-an inborn error of metabolism by which NADPH is not produced efficiently. NADPH is necessary to keep glutathione a stabilizing factor in the RBC membrane. The result is a tendancy to hemolysis.