HEADER MEMBRANE PROTEIN 31-DEC-69 6MJH TITLE The S31N mutant of the influenza A M2 proton channel in two distinct TITLE 2 conformational states COMPND MOL_ID: 1; COMPND 2 MOLECULE: Matrix protein 2; COMPND 3 CHAIN: A, B, C, D, E, F, G, H; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 1; COMPND 6 Matrix protein 2; COMPND 7 CHAIN: A, B, C, D, E, F, G, H; COMPND 8 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.06 ANGSTORMS DBREF 6MJH B 22 46 UNP A0A0R5TV A0A0R5TVW3_ 20 44 DBREF 6MJH C 22 46 UNP A0A0R5TV A0A0R5TVW3_ 20 44 SEQRES 1 C 27 ACE SER SER ASP PRO LEU VAL VAL ALA ALA ASN ILE ILE SEQRES 2 C 27 GLY ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU SEQRES 3 C 27 NH2 ATOM 1 C ACE C 21 35.059 -33.088-107.245 1.00 45.39 ATOM 2 O ACE C 21 34.472 -33.383-106.205 1.00 51.01 ATOM 3 CH3 ACE C 21 34.515 -32.061-108.196 1.00 37.10 ATOM 4 N SER C 22 36.216 -33.656-107.578 1.00 38.68 ATOM 5 CA SER C 22 36.935 -33.325-108.804 1.00 41.83 ATOM 6 C SER C 22 36.491 -34.212-109.965 1.00 35.34 ATOM 7 O SER C 22 35.636 -35.083-109.804 1.00 37.47 ATOM 8 CB SER C 22 38.444 -33.457-108.592 1.00 40.08 ATOM 9 OG SER C 22 38.812 -33.048-107.286 1.00 52.84 ATOM 10 N SER C 23 37.087 -33.986-111.132 1.00 41.76 ATOM 11 CA SER C 23 36.810 -34.766-112.329 1.00 30.24 ATOM 12 C SER C 23 38.084 -35.464-112.782 1.00 29.78 ATOM 13 O SER C 23 39.183 -34.913-112.659 1.00 27.87 ATOM 14 CB SER C 23 36.265 -33.883-113.457 1.00 35.41 ATOM 15 OG SER C 23 34.988 -33.364-113.127 1.00 51.01 ATOM 16 N ASP C 24 37.930 -36.675-113.298 1.00 29.47 ATOM 17 CA ASP C 24 39.071 -37.446-113.775 1.00 22.26 ATOM 18 C ASP C 24 39.633 -36.806-115.037 1.00 28.88 ATOM 19 O ASP C 24 38.912 -36.698-116.038 1.00 23.39 ATOM 20 CB ASP C 24 38.651 -38.889-114.043 1.00 23.51 ATOM 21 CG ASP C 24 39.818 -39.781-114.429 1.00 28.77 ATOM 22 OD1 ASP C 24 40.982 -39.344-114.310 1.00 29.45 ATOM 23 OD2 ASP C 24 39.569 -40.929-114.854 1.00 26.54 ATOM 24 N PRO C 25 40.893 -36.365-115.040 1.00 23.52 ATOM 25 CA PRO C 25 41.453 -35.779-116.268 1.00 25.59 ATOM 26 C PRO C 25 41.554 -36.766-117.417 1.00 24.51 ATOM 27 O PRO C 25 41.548 -36.344-118.580 1.00 24.87 ATOM 28 CB PRO C 25 42.836 -35.282-115.823 1.00 24.99 ATOM 29 CG PRO C 25 43.154 -36.074-114.599 1.00 34.98 ATOM 30 CD PRO C 25 41.843 -36.310-113.916 1.00 26.78 ATOM 31 N LEU C 26 41.643 -38.069-117.134 1.00 19.15 ATOM 32 CA LEU C 26 41.691 -39.042-118.220 1.00 22.05 ATOM 33 C LEU C 26 40.333 -39.214-118.886 1.00 19.79 ATOM 34 O LEU C 26 40.268 -39.491-120.088 1.00 23.61 ATOM 35 CB LEU C 26 42.204 -40.385-117.702 1.00 26.63 ATOM 36 CG LEU C 26 43.661 -40.366-117.237 1.00 29.01 ATOM 37 CD1 LEU C 26 44.103 -41.746-116.782 1.00 26.29 ATOM 38 CD2 LEU C 26 44.564 -39.847-118.348 1.00 30.55 ATOM 39 N VAL C 27 39.243 -39.060-118.130 1.00 23.69 ATOM 40 CA VAL C 27 37.915 -39.146-118.730 1.00 18.49 ATOM 41 C VAL C 27 37.630 -37.907-119.569 1.00 25.41 ATOM 42 O VAL C 27 37.001 -37.991-120.632 1.00 24.16 ATOM 43 CB VAL C 27 36.846 -39.359-117.644 1.00 22.83 ATOM 44 CG1 VAL C 27 35.459 -39.449-118.270 1.00 22.62 ATOM 45 CG2 VAL C 27 37.153 -40.610-116.837 1.00 23.13 ATOM 46 N VAL C 28 38.089 -36.737-119.111 1.00 22.23 ATOM 47 CA VAL C 28 37.977 -35.528-119.923 1.00 22.82 ATOM 48 C VAL C 28 38.759 -35.687-121.220 1.00 20.60 ATOM 49 O VAL C 28 38.277 -35.328-122.301 1.00 22.99 ATOM 50 CB VAL C 28 38.447 -34.296-119.125 1.00 28.06 ATOM 51 CG1 VAL C 28 38.477 -33.058-120.022 1.00 21.62 ATOM 52 CG2 VAL C 28 37.548 -34.068-117.918 1.00 23.12 ATOM 53 N ALA C 29 39.979 -36.225-121.133 1.00 25.51 ATOM 54 CA ALA C 29 40.754 -36.495-122.339 1.00 19.07 ATOM 55 C ALA C 29 40.014 -37.455-123.260 1.00 22.43 ATOM 56 O ALA C 29 39.969 -37.248-124.479 1.00 21.70 ATOM 57 CB ALA C 29 42.127 -37.057-121.965 1.00 21.02 ATOM 58 N ALA C 30 39.430 -38.514-122.696 1.00 21.28 ATOM 59 CA ALA C 30 38.645 -39.443-123.501 1.00 20.75 ATOM 60 C ALA C 30 37.542 -38.712-124.257 1.00 23.37 ATOM 61 O ALA C 30 37.365 -38.907-125.466 1.00 19.27 ATOM 62 CB ALA C 30 38.059 -40.540-122.612 1.00 25.30 ATOM 63 N ASN C 31 36.791 -37.857-123.557 1.00 19.34 ATOM 64 CA ASN C 31 35.738 -37.084-124.209 1.00 21.77 ATOM 65 C ASN C 31 36.307 -36.209-125.318 1.00 20.13 ATOM 66 O ASN C 31 35.778 -36.175-126.435 1.00 18.99 ATOM 67 CB ASN C 31 34.998 -36.228-123.179 1.00 22.44 ATOM 68 CG ASN C 31 34.209 -37.060-122.181 1.00 31.21 ATOM 69 OD1 ASN C 31 33.595 -38.065-122.539 1.00 30.11 ATOM 70 ND2 ASN C 31 34.222 -36.641-120.922 1.00 26.70 ATOM 71 N ILE C 32 37.391 -35.489-125.024 1.00 17.79 ATOM 72 CA ILE C 32 37.964 -34.571-126.004 1.00 20.30 ATOM 73 C ILE C 32 38.360 -35.322-127.268 1.00 20.67 ATOM 74 O ILE C 32 38.065 -34.889-128.389 1.00 15.08 ATOM 75 CB ILE C 32 39.159 -33.817-125.396 1.00 19.86 ATOM 76 CG1 ILE C 32 38.686 -32.914-124.254 1.00 22.99 ATOM 77 CG2 ILE C 32 39.883 -33.015-126.469 1.00 20.26 ATOM 78 CD1 ILE C 32 39.800 -32.168-123.562 1.00 21.37 ATOM 79 N ILE C 33 39.036 -36.461-127.108 1.00 17.20 ATOM 80 CA ILE C 33 39.470 -37.232-128.269 1.00 19.04 ATOM 81 C ILE C 33 38.264 -37.714-129.065 1.00 20.64 ATOM 82 O ILE C 33 38.213 -37.583-130.295 1.00 18.28 ATOM 83 CB ILE C 33 40.365 -38.404-127.829 1.00 19.56 ATOM 84 CG1 ILE C 33 41.566 -37.882-127.040 1.00 25.32 ATOM 85 CG2 ILE C 33 40.827 -39.202-129.037 1.00 22.69 ATOM 86 CD1 ILE C 33 42.419 -36.898-127.814 1.00 31.56 ATOM 87 N GLY C 34 37.269 -38.272-128.372 1.00 16.42 ATOM 88 CA GLY C 34 36.099 -38.789-129.062 1.00 20.70 ATOM 89 C GLY C 34 35.304 -37.710-129.773 1.00 20.27 ATOM 90 O GLY C 34 34.840 -37.912-130.899 1.00 15.13 ATOM 91 N ILE C 35 35.133 -36.554-129.129 1.00 20.20 ATOM 92 CA ILE C 35 34.374 -35.464-129.739 1.00 22.21 ATOM 93 C ILE C 35 35.095 -34.934-130.970 1.00 19.89 ATOM 94 O ILE C 35 34.475 -34.657-132.004 1.00 19.68 ATOM 95 CB ILE C 35 34.126 -34.342-128.714 1.00 16.34 ATOM 96 CG1 ILE C 35 33.437 -34.897-127.467 1.00 24.62 ATOM 97 CG2 ILE C 35 33.291 -33.238-129.341 1.00 26.97 ATOM 98 CD1 ILE C 35 33.543 -33.987-126.262 1.00 24.94 ATOM 99 N LEU C 36 36.413 -34.755-130.869 1.00 21.94 ATOM 100 CA LEU C 36 37.182 -34.269-132.009 1.00 18.78 ATOM 101 C LEU C 36 37.111 -35.249-133.171 1.00 17.33 ATOM 102 O LEU C 36 36.874 -34.856-134.320 1.00 15.20 ATOM 103 CB LEU C 36 38.635 -34.031-131.599 1.00 15.91 ATOM 104 CG LEU C 36 39.549 -33.566-132.734 1.00 26.15 ATOM 105 CD1 LEU C 36 39.092 -32.208-133.257 1.00 27.59 ATOM 106 CD2 LEU C 36 40.998 -33.514-132.279 1.00 26.36 ATOM 107 N HIS C 37 37.316 -36.537-132.890 1.00 18.98 ATOM 108 CA HIS C 37 37.265 -37.544-133.944 1.00 17.34 ATOM 109 C HIS C 37 35.917 -37.525-134.653 1.00 18.55 ATOM 110 O HIS C 37 35.850 -37.522-135.887 1.00 19.91 ATOM 111 CB HIS C 37 37.551 -38.929-133.362 1.00 13.98 ATOM 112 CG HIS C 37 37.757 -39.987-134.400 1.00 18.75 ATOM 113 ND1 HIS C 37 37.981 -41.310-134.084 1.00 18.02 ATOM 114 CD2 HIS C 37 37.773 -39.916-135.753 1.00 20.86 ATOM 115 CE1 HIS C 37 38.125 -42.008-135.196 1.00 17.82 ATOM 116 NE2 HIS C 37 38.005 -41.186-136.223 1.00 16.79 ATOM 117 N LEU C 38 34.827 -37.512-133.884 1.00 19.19 ATOM 118 CA LEU C 38 33.500 -37.467-134.490 1.00 19.88 ATOM 119 C LEU C 38 33.311 -36.197-135.312 1.00 18.17 ATOM 120 O LEU C 38 32.795 -36.244-136.434 1.00 18.96 ATOM 121 CB LEU C 38 32.428 -37.573-133.406 1.00 17.21 ATOM 122 CG LEU C 38 30.979 -37.333-133.828 1.00 20.26 ATOM 123 CD1 LEU C 38 30.530 -38.359-134.854 1.00 17.79 ATOM 124 CD2 LEU C 38 30.069 -37.351-132.612 1.00 20.56 ATOM 125 N ILE C 39 33.734 -35.054-134.772 1.00 18.85 ATOM 126 CA ILE C 39 33.575 -33.787-135.482 1.00 22.83 ATOM 127 C ILE C 39 34.370 -33.803-136.781 1.00 21.45 ATOM 128 O ILE C 39 33.850 -33.475-137.854 1.00 21.35 ATOM 129 CB ILE C 39 33.994 -32.614-134.582 1.00 22.61 ATOM 130 CG1 ILE C 39 33.027 -32.477-133.404 1.00 25.05 ATOM 131 CG2 ILE C 39 34.072 -31.322-135.389 1.00 25.36 ATOM 132 CD1 ILE C 39 33.462 -31.461-132.378 1.00 26.56 ATOM 133 N LEU C 40 35.648 -34.179-136.701 1.00 19.11 ATOM 134 CA LEU C 40 36.490 -34.182-137.893 1.00 18.33 ATOM 135 C LEU C 40 35.951 -35.140-138.947 1.00 23.03 ATOM 136 O LEU C 40 36.051 -34.871-140.150 1.00 23.02 ATOM 137 CB LEU C 40 37.926 -34.549-137.520 1.00 22.22 ATOM 138 CG LEU C 40 38.690 -33.516-136.690 1.00 23.95 ATOM 139 CD1 LEU C 40 40.107 -33.991-136.413 1.00 20.84 ATOM 140 CD2 LEU C 40 38.698 -32.172-137.405 1.00 24.11 ATOM 141 N TRP C 41 35.377 -36.265-138.516 1.00 16.20 ATOM 142 CA TRP C 41 34.841 -37.227-139.472 1.00 18.62 ATOM 143 C TRP C 41 33.585 -36.695-140.150 1.00 20.03 ATOM 144 O TRP C 41 33.423 -36.837-141.367 1.00 17.70 ATOM 145 CB TRP C 41 34.554 -38.559-138.777 1.00 17.54 ATOM 146 CG TRP C 41 33.895 -39.556-139.676 1.00 18.80 ATOM 147 CD1 TRP C 41 34.492 -40.298-140.656 1.00 23.19 ATOM 148 CD2 TRP C 41 32.510 -39.922-139.682 1.00 20.01 ATOM 149 NE1 TRP C 41 33.563 -41.103-141.271 1.00 23.35 ATOM 150 CE2 TRP C 41 32.339 -40.891-140.692 1.00 22.31 ATOM 151 CE3 TRP C 41 31.399 -39.525-138.931 1.00 18.85 ATOM 152 CZ2 TRP C 41 31.101 -41.467-140.971 1.00 20.92 ATOM 153 CZ3 TRP C 41 30.172 -40.099-139.209 1.00 21.54 ATOM 154 CH2 TRP C 41 30.033 -41.059-140.221 1.00 25.21 ATOM 155 N ILE C 42 32.684 -36.081-139.380 1.00 22.73 ATOM 156 CA ILE C 42 31.469 -35.521-139.967 1.00 24.24 ATOM 157 C ILE C 42 31.822 -34.429-140.969 1.00 20.58 ATOM 158 O ILE C 42 31.322 -34.411-142.100 1.00 25.22 ATOM 159 CB ILE C 42 30.529 -35.000-138.866 1.00 18.93 ATOM 160 CG1 ILE C 42 29.957 -36.167-138.058 1.00 19.47 ATOM 161 CG2 ILE C 42 29.406 -34.161-139.475 1.00 24.76 ATOM 162 CD1 ILE C 42 29.186 -35.736-136.829 1.00 18.40 ATOM 163 N LEU C 43 32.696 -33.504-140.571 1.00 18.20 ATOM 164 CA LEU C 43 33.075 -32.426-141.477 1.00 20.50 ATOM 165 C LEU C 43 33.765 -32.969-142.720 1.00 20.86 ATOM 166 O LEU C 43 33.566 -32.452-143.825 1.00 20.33 ATOM 167 CB LEU C 43 33.966 -31.421-140.750 1.00 14.39 ATOM 168 CG LEU C 43 33.216 -30.657-139.658 1.00 18.88 ATOM 169 CD1 LEU C 43 34.114 -29.647-138.958 1.00 17.95 ATOM 170 CD2 LEU C 43 31.989 -29.981-140.257 1.00 24.61 ATOM 171 N ASP C 44 34.577 -34.017-142.559 1.00 22.73 ATOM 172 CA ASP C 44 35.212 -34.650-143.710 1.00 25.83 ATOM 173 C ASP C 44 34.167 -35.165-144.694 1.00 26.66 ATOM 174 O ASP C 44 34.267 -34.932-145.905 1.00 25.54 ATOM 175 CB ASP C 44 36.121 -35.787-143.239 1.00 26.08 ATOM 176 CG ASP C 44 36.944 -36.386-144.365 1.00 31.27 ATOM 177 OD1 ASP C 44 37.042 -35.753-145.436 1.00 30.07 ATOM 178 OD2 ASP C 44 37.494 -37.492-144.175 1.00 29.60 ATOM 179 N ARG C 45 33.147 -35.862-144.187 1.00 26.66 ATOM 180 CA ARG C 45 32.115 -36.402-145.063 1.00 30.16 ATOM 181 C ARG C 45 31.235 -35.307-145.652 1.00 33.68 ATOM 182 O ARG C 45 30.779 -35.427-146.792 1.00 38.01 ATOM 183 CB ARG C 45 31.264 -37.417-144.301 1.00 30.20 ATOM 184 CG ARG C 45 31.994 -38.716-143.960 1.00 30.75 ATOM 185 CD ARG C 45 32.171 -39.593-145.191 1.00 31.57 ATOM 186 NE ARG C 45 30.886 -40.046-145.719 1.00 34.99 ATOM 187 CZ ARG C 45 30.319 -39.576-146.828 1.00 38.69 ATOM 188 NH1 ARG C 45 29.147 -40.051-147.224 1.00 35.53 ATOM 189 NH2 ARG C 45 30.921 -38.631-147.542 1.00 34.34 ATOM 190 N LEU C 46 30.984 -34.240-144.891 1.00 25.05 ATOM 191 CA LEU C 46 30.189 -33.112-145.376 1.00 32.44 ATOM 192 C LEU C 46 31.093 -31.935-145.728 1.00 36.45 ATOM 193 O LEU C 46 31.347 -31.066-144.892 1.00 37.29 ATOM 194 CB LEU C 46 29.158 -32.678-144.331 1.00 30.52 ATOM 195 CG LEU C 46 28.182 -33.730-143.798 1.00 37.43 ATOM 196 CD1 LEU C 46 27.003 -33.061-143.113 1.00 32.47 ATOM 197 CD2 LEU C 46 27.711 -34.642-144.918 1.00 33.89 ATOM 198 N NH2 C 47 31.578 -31.914-146.965 1.00 40.34 ATOM 199 CA CA C 101 26.857 -43.034-147.249 1.00 45.71 TER