Implicated in a number of adherence functions. OPA proteins are implicated in pathogenesis and are subject to phase variation. AGEDHGRGPYVQADLAYAYEHITHDYPEPTGTKKDKISTVSDYFRNIRTHSIHPRVSVGYDFGGWRIAADYARYRKWNNNKYSVNIKELLRNDNANSGGSHLNIKTRKTEHRENGTFHAASSLGLSAVYDFDTGSRFKPYIGMRVAYGHVRHQVRSVQQETIAVTTYPQNAASSVTTNAPIRKLPHHESRSISSLGFGAVAGVGIDITPNLTLDAGYRYHNWGRLENTRFKTHEASLGVRYRF opaD 243 OPAD_NEIGO Opacity protein opA59 (Fragment)