>3ud4_P mol:protein length:98 U1 small nuclear ribonucleoprotein A
MAVPETRPNHTIYINNLNEKIKKDELKKSLHAIFSRFGQILDILVSRSLKMRGQAFVIFKEVSSATNALRSMQGFPFYDKPMRIQYAKTDSDIIAKMK
>3ud4_R mol:na length:92 RNA (92-MER)
GGUCACGCACAGGGCAAACCAUUCGAAAGAGUGGGACGCAAAGCCUCCGGCCUAAACCAUUGCACUCCGGUAGGUAGCGGGGUUAUCGAUGG
>3ud4_B mol:na length:2 RNA (5'-R(*GP*A)-3')
GA