Human neutrophil 22-OH-PD1 (6) matches synthetic
material.
Representative MRM chromatograms. n = 3. Selected
ion chromatogram (m/z 375–153)
depicting (A) 22-OH-PD1 (6) obtained from human peripheral
blood neutrophils (5 × 107/mL) incubated with 0.1
mg of opsonized zymosan and PD1 (3) (10 ng/mL, 37 °C,
30 min, DPBS+/+, pH = 7.45). n = 3 human
neutrophil preparations. (B) Synthetic material (inset: characteristic
UV-absorption spectrum in MeOH, ±1 nm). (C) Co-injection of human
neutrophil 22-OH-PD1 (6) with synthetic 6.