U1 small nuclear ribonucleoprotein Ab:ACnc:Pt:Ser:Qn
u1 small nuclear ribonucleoprotein ab:acnc:pt:ser:qn
U1 small nuclear ribonucleoprotein Ab:ACnc:Pt:Ser:Qn
u1 small nuclear ribonucleoprotein ab:acnc:pt:ser:qn