>d1prth2 d.169.1.2 (H:4-89) Pertussis toxin, S2/S3 subunits, N-terminal domain {Bordetella pertussis} givippqeqitqhgspygrcanktraltvaelrgsgdlqeylrhvtrgwsifalydgtyl ggeyggvikdgtpggafdlkttfcim