in order to investigate the clinical significance of autoantibodies to individual u small nuclear ribonucleoprotein ( snrnp ) polypeptides , an enzyme-linked immunosorbent assay ( elisa ) using isolated 68k , a , b/b ' , and d polypeptides from purified u1 snrnp was developed .
C0142661
small nuclear ribonucleoprotein
C0162795
u1 snrnp