HEADER NUCLEAR PROTEIN/DNA 24-OCT-13 4NCA TITLE Structure of Thermus thermophilus Argonaute bound to guide DNA 19-mer TITLE 2 and target DNA in the presence of MN2+ COMPND MOL_ID: 1; COMPND 2 MOLECULE: Argonaute; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 1; COMPND 6 Argonaute; COMPND 7 CHAIN: A, B; COMPND 8 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.49 ANGSTORMS DBREF 4NCA A 1 685 UNP Q746M7 Q746M7_THET 1 685 DBREF 4NCA B 1 685 UNP Q746M7 Q746M7_THET 1 685 SEQRES 1 A 71 PRO TRP ARG LEU GLU VAL VAL LEU ASP PRO PRO PRO GLY SEQRES 2 A 71 ARG GLU GLU VAL TYR PRO LEU LEU ALA GLN VAL ALA ARG SEQRES 3 A 71 ARG ALA GLY GLY VAL THR VAL ARG MET GLY ASP GLY LEU SEQRES 4 A 71 ALA SER TRP SER PRO PRO GLU VAL LEU VAL LEU GLU GLY SEQRES 5 A 71 THR LEU ALA ARG MET GLY GLN THR TYR ALA TYR ARG LEU SEQRES 6 A 71 TYR PRO LYS GLY ARG ARG ATOM 1 OP3 DT A -67.603 21.400 18.452 1.00 83.78 ATOM 2 P DT A -68.807 20.832 17.800 1.00 83.26 ATOM 3 OP1 DT A -68.398 20.344 16.466 1.00 81.05 ATOM 4 OP2 DT A -69.875 21.854 17.891 1.00 81.49 ATOM 5 O5' DT A -69.283 19.564 18.646 1.00 74.79 ATOM 6 C5' DT A -69.006 18.272 18.140 1.00 77.44 ATOM 7 C4' DT A -69.205 17.209 19.202 1.00 83.15 ATOM 8 O4' DT A -68.593 17.613 20.448 1.00 86.09 ATOM 9 C3' DT A -70.642 16.945 19.617 1.00 82.28 ATOM 10 O3' DT A -71.279 16.088 18.678 1.00 80.65 ATOM 11 C2' DT A -70.462 16.240 20.956 1.00 87.65 ATOM 12 C1' DT A -69.123 16.775 21.458 1.00 88.58 ATOM 13 N1 DT A -69.250 17.520 22.741 1.00 90.25 ATOM 14 C2 DT A -68.733 16.948 23.885 1.00 92.35 ATOM 15 O2 DT A -68.177 15.865 23.894 1.00 94.07 ATOM 16 N3 DT A -68.896 17.686 25.027 1.00 92.73 ATOM 17 C4 DT A -69.510 18.917 25.127 1.00 89.91 ATOM 18 O4 DT A -69.615 19.520 26.189 1.00 92.84 ATOM 19 C5 DT A -70.026 19.452 23.896 1.00 87.39 ATOM 20 C7 DT A -70.708 20.777 23.920 1.00 86.89 ATOM 21 C6 DT A -69.881 18.746 22.769 1.00 84.89 TER ATOM 1 OP3 DT B -45.519 43.732 21.248 1.00 62.19 ATOM 2 P DT B -45.821 43.941 19.811 1.00 57.22 ATOM 3 OP1 DT B -46.157 42.618 19.224 1.00 56.45 ATOM 4 OP2 DT B -46.898 44.892 19.464 1.00 67.61 ATOM 5 O5' DT B -44.495 44.448 19.090 1.00 58.19 ATOM 6 C5' DT B -43.267 43.886 19.505 1.00 60.24 ATOM 7 C4' DT B -42.166 44.220 18.526 1.00 63.57 ATOM 8 O4' DT B -42.420 43.574 17.263 1.00 71.95 ATOM 9 C3' DT B -42.063 45.684 18.150 1.00 60.37 ATOM 10 O3' DT B -41.277 46.368 19.115 1.00 63.03 ATOM 11 C2' DT B -41.354 45.636 16.801 1.00 67.74 ATOM 12 C1' DT B -41.600 44.213 16.308 1.00 70.90 ATOM 13 N1 DT B -42.279 44.174 14.992 1.00 72.30 ATOM 14 C2 DT B -41.558 43.812 13.874 1.00 72.34 ATOM 15 O2 DT B -40.383 43.507 13.901 1.00 79.40 ATOM 16 N3 DT B -42.265 43.807 12.705 1.00 73.09 ATOM 17 C4 DT B -43.595 44.129 12.554 1.00 71.54 ATOM 18 O4 DT B -44.170 44.107 11.474 1.00 76.50 ATOM 19 C5 DT B -44.275 44.500 13.758 1.00 69.64 ATOM 20 C7 DT B -45.711 44.862 13.664 1.00 70.92 ATOM 21 C6 DT B -43.610 44.512 14.916 1.00 68.58 TER