Figure 1From: Detection and identification of huwentoxin-IV interacting proteins by biotin-avidin chemistry combined with mass spectrometryDetection of the biotin labeling extent of HWTX-IV with MALDI-TOF mass spectrometry. 4106.85Â Da, unlabeled; 4333.15Â Da, 4559.45Â Da and 4785.75Â Da, labeled with one, two or three biotin groups, respectively.Back to article page