Fig. 1
From: Targeting a cysteine protease from a pathobiont alleviates experimental arthritis
Protein domains of the RgpA gingipain complex. The catalytic, arginine-specific adhesin domain (CD) comprises 492 amino acids (positions 228–719). The hemagglutinin domain (positions 720–1703) is composed of 984 amino acids and comprises four sub-domains: HA1 (positions 720–1136), HA2 (positions 1137–1271), HA3 (positions 1272–1429), and HA4 (positions 1430–1703) [29]