Fig. 5
From: Outer membrane phospholipase A’s roles in Helicobacter pylori acid adaptation
OMPLA pore. Both OMPLA and substrates are visualized with their molecular surface using YASARA/WHAT IF twinset. Urea and NH4 + (and perhaps NH3) easily pass through the OMPLA polar pore. Positively charged residues (Arg, Lys, and His) are coloured blue, negatively charged residues (Glue, and Asp) are coloured red, polar residues (Asn, and Gln) are coloured purple, hydrophobic residues (Gly, Ala, Val, Leu, and Pro) are coloured grass green, alcoholic residues (Thr and Ser) are coloured light green, aromatic residues (Phe, Tyr, and Trp) are coloured light blue-green, and sulphur containing residues (Cys, Met). a Top-view w/urea. b Bottom-view w/ammonium