Ornibactin (mixture) 1 mg

Ornibactin mixture consists of C4, C6 and C8 analogues.

Ornibactins are linear hydroxamate/hydroxycarboxylate siderophores composed of the conserved tetrapeptide L-Orn1(N?-OH,N?-acyl)-d-threo-Asp(?-OH)-L-Ser-L-Orn4(N?-OH,N?-formyl)-1,4-diaminobutane. The acyl groups of Orn1 vary in length and include 3-hydroxybutanoic acid, 3-hydroxyhexanoic acid, and 3-hydroxyoctanoic acid, forming the three different ornibactins, designated ornibactin-C4, ornibactin-C6, and ornibactin-C8 according to their acyl chain lengths. The peptide structures of ornibactins are similar to that of the pyoverdines produced by the fluorescent pseudomonads, Pseudomonas aeruginosa and Pseudomonas fluorescens, but lack a chromophore.