==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=22-JAN-2010 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER MEMBRANE PROTEIN 15-JUL-97 3MRA . COMPND 2 MOLECULE: NICOTINIC ACETYLCHOLINE RECEPTOR; . SOURCE 2 ORGANISM_SCIENTIFIC: TORPEDO CALIFORNICA; . AUTHOR A.A.LUGOVSKOY,I.V.MASLENNIKOV,Y.N.UTKIN,V.I.TSETLIN, . 25 1 0 0 0 TOTAL NUMBER OF RESIDUES, NUMBER OF CHAINS, NUMBER OF SS-BRIDGES(TOTAL,INTRACHAIN,INTERCHAIN) . 2804.0 ACCESSIBLE SURFACE OF PROTEIN (ANGSTROM**2) . 21 84.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(J) , SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS IN PARALLEL BRIDGES, SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS IN ANTIPARALLEL BRIDGES, SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I-5), SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I-4), SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I-3), SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I-2), SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I-1), SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I+0), SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I+1), SAME NUMBER PER 100 RESIDUES . 1 4.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I+2), SAME NUMBER PER 100 RESIDUES . 4 16.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I+3), SAME NUMBER PER 100 RESIDUES . 16 64.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I+4), SAME NUMBER PER 100 RESIDUES . 0 0.0 TOTAL NUMBER OF HYDROGEN BONDS OF TYPE O(I)-->H-N(I+5), SAME NUMBER PER 100 RESIDUES . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 *** HISTOGRAMS OF *** . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 RESIDUES PER ALPHA HELIX . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PARALLEL BRIDGES PER LADDER . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ANTIPARALLEL BRIDGES PER LADDER . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 LADDERS PER SHEET . # RESIDUE AA STRUCTURE BP1 BP2 ACC N-H-->O O-->H-N N-H-->O O-->H-N TCO KAPPA ALPHA PHI PSI X-CA Y-CA Z-CA 1 277 A Y 0 0 219 0, 0.0 3,-0.2 0, 0.0 0, 0.0 0.000 360.0 360.0 360.0 15.8 14.1 3.7 10.5 2 278 A M + 0 0 169 1,-0.2 2,-0.1 2,-0.0 0, 0.0 0.712 360.0 43.5 75.4 26.6 14.2 4.5 6.9 3 279 A L S >> S+ 0 0 109 0, 0.0 3,-1.4 0, 0.0 4,-0.5 -0.138 117.5 21.7-146.7 -88.1 14.5 1.1 5.3 4 280 A F G >4 S+ 0 0 167 1,-0.3 3,-1.7 2,-0.2 4,-0.4 0.863 118.6 63.5 -51.5 -41.0 12.4 -1.9 6.5 5 281 A T G >4 S+ 0 0 74 1,-0.3 3,-1.8 2,-0.2 4,-0.4 0.810 90.5 67.0 -56.5 -32.9 9.9 0.5 8.0 6 282 A M G X> S+ 0 0 113 -3,-1.4 4,-2.0 1,-0.3 3,-1.7 0.789 84.0 71.7 -61.1 -29.9 9.0 1.9 4.6 7 283 A I H S+ 0 0 166 -3,-1.8 4,-0.7 -4,-0.4 -1,-0.3 0.832 106.1 41.2 -62.8 -33.8 4.7 -0.6 5.9 9 285 A V H <> S+ 0 0 86 -3,-1.7 4,-2.4 -4,-0.4 -2,-0.2 0.803 110.2 58.0 -83.8 -33.3 3.8 2.3 3.6 10 286 A I H X S+ 0 0 80 -4,-2.0 4,-2.5 1,-0.2 5,-0.2 0.926 103.7 53.7 -55.8 -47.1 4.4 0.2 0.6 11 287 A S H X S+ 0 0 70 -4,-2.8 4,-2.3 1,-0.2 -1,-0.2 0.851 110.7 46.7 -55.1 -36.9 1.8 -2.2 1.9 12 288 A S H X S+ 0 0 62 -4,-0.7 4,-2.4 2,-0.2 -1,-0.2 0.846 108.6 53.3 -80.7 -36.3 -0.7 0.7 2.2 13 289 A I H X S+ 0 0 98 -4,-2.4 4,-2.3 2,-0.2 -2,-0.2 0.951 114.6 42.3 -59.5 -51.7 0.0 2.1 -1.3 14 290 A I H X S+ 0 0 94 -4,-2.5 4,-2.0 1,-0.2 -2,-0.2 0.953 115.9 47.4 -60.1 -53.0 -0.6 -1.2 -2.8 15 291 A I H X S+ 0 0 94 -4,-2.3 4,-2.2 1,-0.2 -1,-0.2 0.841 111.0 53.3 -62.3 -35.1 -3.7 -2.0 -0.7 16 292 A T H X S+ 0 0 68 -4,-2.4 4,-2.5 2,-0.2 -1,-0.2 0.924 111.3 44.3 -64.1 -46.7 -5.0 1.4 -1.4 17 293 A V H X S+ 0 0 87 -4,-2.3 4,-1.4 1,-0.2 -2,-0.2 0.782 112.1 55.5 -66.0 -27.5 -4.7 1.0 -5.1 18 294 A V H X S+ 0 0 68 -4,-2.0 4,-2.2 2,-0.2 -2,-0.2 0.846 107.5 48.2 -76.8 -35.7 -6.2 -2.5 -4.6 19 295 A V H X S+ 0 0 71 -4,-2.2 4,-2.5 2,-0.2 5,-0.3 0.969 111.3 49.0 -61.3 -56.2 -9.2 -1.0 -2.9 20 296 A I H X S+ 0 0 99 -4,-2.5 4,-2.5 1,-0.3 -2,-0.2 0.816 114.0 48.6 -55.5 -32.3 -9.7 1.6 -5.6 21 297 A N H < S+ 0 0 101 -4,-1.4 -1,-0.3 2,-0.2 -2,-0.2 0.900 109.7 49.7 -74.6 -42.8 -9.4 -1.3 -8.1 22 298 A T H < S+ 0 0 79 -4,-2.2 3,-0.3 1,-0.2 -2,-0.2 0.838 121.0 36.0 -66.8 -34.6 -11.9 -3.5 -6.4 23 299 A H H < S+ 0 0 149 -4,-2.5 2,-1.1 1,-0.2 -2,-0.2 0.948 125.0 38.1 -82.0 -57.0 -14.4 -0.8 -6.1 24 300 A H < 0 0 150 -4,-2.5 -1,-0.2 -5,-0.3 -2,-0.1 -0.678 360.0 360.0-100.0 78.0 -13.8 1.0 -9.4 25 301 A R 0 0 227 -2,-1.1 -3,-0.1 -3,-0.3 -4,-0.1 -0.407 360.0 360.0 -61.4 360.0 -13.2 -1.9 -11.8