Anionic

Based on their acid dissociation constants (pKa), seleneous^([sic]) acid (H2SeO3) and selenic acid (H2SeO4) are anionic under common environmental conditions [48], e.g., as selenite (SeO32−) and selenate (SeO42−).

Inspection of CD data reveals that, similar to previously reported data for megainin^([sic]) peptides [ 33 ], preference of α-helical conformation of TM2 and TM3 segments are different in anionic (SDS) and zwitterionic (DPC) media, reflecting the importance of electrostatic and hydrophobic interactions between the peptides and micelles.