Table 3.

Interactions between RNA and the protein core identified in the NP-RNA complexes

Side-chain interactions	Interacting RNA moiety on NP-DL (shortest distance in Å)	Interacting RNA moiety on DLDC2 (shortest distance in Å)
R65	U1/O2 (2.96)	U1/O2 (3.41)
R74	U1/PO4 (2.51)	Not applicable
R75	Not applicable	U1/PO4 (4.16)
K87	U3/PO4 (3.33)	U2/PO4 (3.64), U3/PO4 (3.52)
S69	U2/PO4 (2.50)	U2/PO4 (3.03)
T92	U2/PO4 (2.63)	U2/PO4 (3.05)
R175	U1/O4 (3.26)	U1/O4 (3.98)
S367	U3/O3′ (3.33)	U3/O3′ (3.29)
Main-chain interactions	Interacting RNA moiety on NP-DL (shortest distance in Å)	Interacting RNA moiety on DLDC2 (shortest distance in Å)
D88/N	U2/O4 (2.66)	U2/O4 (3.00)