HEADSC 3hi5 SEQCRD H E GLU --- 1 - - - 0 SEQCRD H V VAL VAL 2 2 C C 0 SEQCRD H Q GLN GLN 3 3 E E 0 SEQCRD H L LEU LEU 4 4 E E 0 SEQCRD H L LEU LEU 5 5 E E 0 SEQCRD H E GLU GLU 6 6 E E 0 SEQCRD H S SER SER 7 7 E E 0 SEQCRD H G GLY GLY 8 8 C C 0 SEQCRD H G GLY GLY 9 9 C C 0 SEQCRD H G GLY GLY 10 10 C C 0 SEQCRD H L LEU LEU 11 11 E E 0 SEQCRD H V VAL VAL 12 12 E E 0 SEQCRD H Q GLN GLN 13 13 C C 0 SEQCRD H P PRO PRO 14 14 C C 0 SEQCRD H G GLY GLY 15 15 C C 0 SEQCRD H G GLY GLY 16 16 C C 0 SEQCRD H S SER SER 17 17 C C 0 SEQCRD H L LEU LEU 18 18 E E 0 SEQCRD H R ARG ARG 19 19 E E 0 SEQCRD H L LEU LEU 20 20 E E 0 SEQCRD H S SER SER 21 21 E E 0 SEQCRD H C CYS CYS 22 22 E E 0 SEQCRD H A ALA ALA 23 23 E E 0 SEQCRD H A ALA ALA 24 24 E E 0 SEQCRD H S SER SER 25 25 E E 0 SEQCRD H G GLY GLY 26 26 C C 0 SEQCRD H F PHE PHE 27 27 C C 0 SEQCRD H T THR THR 28 28 H H 0 SEQCRD H F PHE PHE 29 29 H H 0 SEQCRD H S SER SER 30 30 H H 0 SEQCRD H R ARG ARG 31 31 H H 0 SEQCRD H Y TYR TYR 32 32 H H 0 SEQCRD H V VAL VAL 33 33 C C 0 SEQCRD H M MET MET 34 34 E E 0 SEQCRD H W TRP TRP 35 35 E E 0 SEQCRD H W TRP TRP 36 36 E E 0 SEQCRD H V VAL VAL 37 37 E E 0 SEQCRD H R ARG ARG 38 38 E E 0 SEQCRD H Q GLN GLN 39 39 E E 0 SEQCRD H A ALA ALA 40 40 C C 0 SEQCRD H P PRO PRO 41 41 C C 0 SEQCRD H G GLY GLY 42 42 C C 0 SEQCRD H K LYS LYS 43 43 C C 0 SEQCRD H G GLY GLY 44 44 C C 0 SEQCRD H L LEU LEU 45 45 E E 0 SEQCRD H E GLU GLU 46 46 E E 0 SEQCRD H W TRP TRP 47 47 E E 0 SEQCRD H V VAL VAL 48 48 E E 0 SEQCRD H S SER SER 49 49 E E 0 SEQCRD H Y TYR TYR 50 50 E E 0 SEQCRD H I ILE ILE 51 51 E E 0 SEQCRD H W TRP TRP 52 52 C C 0 SEQCRD H P PRO PRO 53 53 C C 0 SEQCRD H S SER SER 54 54 C C 0 SEQCRD H G GLY GLY 55 55 C C 0 SEQCRD H G GLY GLY 56 56 C C 0 SEQCRD H N ASN ASN 57 57 C C 0 SEQCRD H T THR THR 58 58 E E 0 SEQCRD H Y TYR TYR 59 59 E E 0 SEQCRD H Y TYR TYR 60 60 E E 0 SEQCRD H A ALA ALA 61 61 C C 0 SEQCRD H D ASP ASP 62 62 C C 0 SEQCRD H S SER SER 63 63 C C 0 SEQCRD H V VAL VAL 64 64 C C 0 SEQCRD H K LYS LYS 65 65 C C 0 SEQCRD H G GLY GLY 66 66 C C 0 SEQCRD H R ARG ARG 67 67 C C 0 SEQCRD H F PHE PHE 68 68 E E 0 SEQCRD H T THR THR 69 69 E E 0 SEQCRD H I ILE ILE 70 70 E E 0 SEQCRD H S SER SER 71 71 E E 0 SEQCRD H R ARG ARG 72 72 E E 0 SEQCRD H D ASP ASP 73 73 E E 0 SEQCRD H N ASN ASN 74 74 C C 0 SEQCRD H S SER SER 75 75 C C 0 SEQCRD H K LYS LYS 76 76 C C 0 SEQCRD H N ASN ASN 77 77 C C 0 SEQCRD H T THR THR 78 78 E E 0 SEQCRD H L LEU LEU 79 79 E E 0 SEQCRD H Y TYR TYR 80 80 E E 0 SEQCRD H L LEU LEU 81 81 E E 0 SEQCRD H Q GLN GLN 82 82 E E 0 SEQCRD H M MET MET 83 83 E E 0 SEQCRD H N ASN ASN 84 84 C C 0 SEQCRD H S SER SER 85 85 C C 0 SEQCRD H L LEU LEU 86 86 C C 0 SEQCRD H R ARG ARG 87 87 H H 0 SEQCRD H A ALA ALA 88 88 H H 0 SEQCRD H E GLU GLU 89 89 H H 0 SEQCRD H D ASP ASP 90 90 H H 0 SEQCRD H T THR THR 91 91 H H 0 SEQCRD H A ALA ALA 92 92 E E 0 SEQCRD H V VAL VAL 93 93 E E 0 SEQCRD H Y TYR TYR 94 94 E E 0 SEQCRD H Y TYR TYR 95 95 E E 0 SEQCRD H C CYS CYS 96 96 E E 0 SEQCRD H A ALA ALA 97 97 E E 0 SEQCRD H S SER SER 98 98 E E 0 SEQCRD H S SER SER 99 99 C C 0 SEQCRD H Y TYR TYR 100 100 C C 0 SEQCRD H D ASP ASP 101 101 C C 0 SEQCRD H F PHE PHE 102 102 C C 0 SEQCRD H W TRP TRP 103 103 C C 0 SEQCRD H S SER SER 104 104 C C 0 SEQCRD H N ASN ASN 105 105 C C 0 SEQCRD H A ALA ALA 106 106 C C 0 SEQCRD H F PHE PHE 107 107 C C 0 SEQCRD H D ASP ASP 108 108 C C 0 SEQCRD H I ILE ILE 109 109 E E 0 SEQCRD H W TRP TRP 110 110 E E 0 SEQCRD H G GLY GLY 111 111 C C 0 SEQCRD H Q GLN GLN 112 112 C C 0 SEQCRD H G GLY GLY 113 113 C C 0 SEQCRD H T THR THR 114 114 C C 0 SEQCRD H M MET MET 115 115 E E 0 SEQCRD H V VAL VAL 116 116 E E 0 SEQCRD H T THR THR 117 117 E E 0 SEQCRD H V VAL VAL 118 118 E E 0 SEQCRD H S SER SER 119 119 C C 0 SEQCRD H S SER SER 120 120 C C 0 SEQCRD H A ALA ALA 121 121 C C 0 SEQCRD H S SER SER 122 122 C C 0 SEQCRD H T THR THR 123 123 C C 0 SEQCRD H K LYS LYS 124 124 C C 0 SEQCRD H G GLY GLY 125 125 C C 0 SEQCRD H P PRO PRO 126 126 C C 0 SEQCRD H S SER SER 127 127 E E 0 SEQCRD H V VAL VAL 128 128 E E 0 SEQCRD H F PHE PHE 129 129 E E 0 SEQCRD H P PRO PRO 130 130 E E 0 SEQCRD H L LEU LEU 131 131 E E 0 SEQCRD H A ALA ALA 132 132 C C 0 SEQCRD H P PRO PRO 133 133 C C 0 SEQCRD H C CYS CYS 134 134 C C 0 SEQCRD H S SER SER 135 135 C C 0 SEQCRD H R ARG ARG 136 136 C C 0 SEQCRD H S SER SER 137 137 C C 0 SEQCRD H T THR THR 138 138 E E 0 SEQCRD H S SER SER 139 139 E E 0 SEQCRD H E GLU GLU 140 140 C C 0 SEQCRD H S SER SER 141 141 C C 0 SEQCRD H T THR THR 142 142 E E 0 SEQCRD H A ALA ALA 143 143 E E 0 SEQCRD H A ALA ALA 144 144 E E 0 SEQCRD H L LEU LEU 145 145 E E 0 SEQCRD H G GLY GLY 146 146 E E 0 SEQCRD H C CYS CYS 147 147 E E 0 SEQCRD H L LEU LEU 148 148 E E 0 SEQCRD H V VAL VAL 149 149 E E 0 SEQCRD H K LYS LYS 150 150 E E 0 SEQCRD H D ASP ASP 151 151 E E 0 SEQCRD H Y TYR TYR 152 152 E E 0 SEQCRD H F PHE PHE 153 153 C C 0 SEQCRD H P PRO PRO 154 154 C C 0 SEQCRD H E GLU GLU 155 155 C C 0 SEQCRD H P PRO PRO 156 156 C C 0 SEQCRD H V VAL VAL 157 157 E E 0 SEQCRD H T THR THR 158 158 E E 0 SEQCRD H V VAL VAL 159 159 E E 0 SEQCRD H S SER SER 160 160 E E 0 SEQCRD H W TRP TRP 161 161 E E 0 SEQCRD H N ASN ASN 162 162 C C 0 SEQCRD H S SER SER 163 163 H H 0 SEQCRD H G GLY GLY 164 164 H H 0 SEQCRD H A ALA ALA 165 165 H H 0 SEQCRD H L LEU LEU 166 166 C C 0 SEQCRD H T THR THR 167 167 C C 0 SEQCRD H S SER SER 168 168 C C 0 SEQCRD H G GLY GLY 169 169 C C 0 SEQCRD H V VAL VAL 170 170 E E 0 SEQCRD H H HIS HIS 171 171 E E 0 SEQCRD H T THR THR 172 172 E E 0 SEQCRD H F PHE PHE 173 173 C C 0 SEQCRD H P PRO PRO 174 174 C C 0 SEQCRD H A ALA ALA 175 175 C C 0 SEQCRD H V VAL VAL 176 176 E E 0 SEQCRD H L LEU LEU 177 177 E E 0 SEQCRD H Q GLN GLN 178 178 C C 0 SEQCRD H S SER SER 179 179 C C 0 SEQCRD H S SER SER 180 180 C C 0 SEQCRD H G GLY GLY 181 181 C C 0 SEQCRD H L LEU LEU 182 182 C C 0 SEQCRD H Y TYR TYR 183 183 E E 0 SEQCRD H S SER SER 184 184 E E 0 SEQCRD H L LEU LEU 185 185 E E 0 SEQCRD H S SER SER 186 186 E E 0 SEQCRD H S SER SER 187 187 E E 0 SEQCRD H V VAL VAL 188 188 E E 0 SEQCRD H V VAL VAL 189 189 E E 0 SEQCRD H T THR THR 190 190 E E 0 SEQCRD H V VAL VAL 191 191 E E 0 SEQCRD H P PRO PRO 192 192 E E 0 SEQCRD H S SER SER 193 193 C C 0 SEQCRD H S SER SER 194 194 C C 0 SEQCRD H S SER SER 195 195 C C 0 SEQCRD H L LEU LEU 196 196 C C 0 SEQCRD H G GLY GLY 197 197 C C 0 SEQCRD H T THR THR 198 198 C C 0 SEQCRD H K LYS LYS 199 199 C C 0 SEQCRD H T THR THR 200 200 C C 0 SEQCRD H Y TYR TYR 201 201 C C 0 SEQCRD H T THR THR 202 202 E E 0 SEQCRD H C CYS CYS 203 203 E E 0 SEQCRD H N ASN ASN 204 204 E E 0 SEQCRD H V VAL VAL 205 205 E E 0 SEQCRD H D ASP ASP 206 206 E E 0 SEQCRD H H HIS HIS 207 207 E E 0 SEQCRD H K LYS LYS 208 208 C C 0 SEQCRD H P PRO PRO 209 209 C C 0 SEQCRD H S SER SER 210 210 C C 0 SEQCRD H N ASN ASN 211 211 C C 0 SEQCRD H T THR THR 212 212 E E 0 SEQCRD H K LYS LYS 213 213 E E 0 SEQCRD H V VAL VAL 214 214 E E 0 SEQCRD H D ASP ASP 215 215 E E 0 SEQCRD H K LYS LYS 216 216 E E 0 SEQCRD H R ARG ARG 217 217 E E 0 SEQCRD H V VAL VAL 218 218 C C 0 SEQCRD H E GLU GLU 219 219 C C 0 SEQCRD H S SER SER 220 220 C C 0 SEQCRD L Q GLN --- 1 - - - 0 SEQCRD L D ASP ASP 2 1 C C 0 SEQCRD L I ILE ILE 3 2 C C 0 SEQCRD L Q GLN GLN 4 3 C C 0 SEQCRD L M MET MET 5 4 E E 0 SEQCRD L T THR THR 6 5 E E 0 SEQCRD L Q GLN GLN 7 6 E E 0 SEQCRD L S SER SER 8 7 E E 0 SEQCRD L P PRO PRO 9 8 C C 0 SEQCRD L S SER SER 10 9 C C 0 SEQCRD L S SER SER 11 10 E E 0 SEQCRD L L LEU LEU 12 11 E E 0 SEQCRD L S SER SER 13 12 E E 0 SEQCRD L A ALA ALA 14 13 E E 0 SEQCRD L S SER SER 15 14 C C 0 SEQCRD L V VAL VAL 16 15 C C 0 SEQCRD L G GLY GLY 17 16 C C 0 SEQCRD L D ASP ASP 18 17 C C 0 SEQCRD L R ARG ARG 19 18 C C 0 SEQCRD L V VAL VAL 20 19 E E 0 SEQCRD L T THR THR 21 20 E E 0 SEQCRD L I ILE ILE 22 21 E E 0 SEQCRD L T THR THR 23 22 E E 0 SEQCRD L C CYS CYS 24 23 E E 0 SEQCRD L R ARG ARG 25 24 E E 0 SEQCRD L A ALA ALA 26 25 E E 0 SEQCRD L S SER SER 27 26 C C 0 SEQCRD L Q GLN GLN 28 27 C C 0 SEQCRD L S SER SER 29 28 C C 0 SEQCRD L I ILE ILE 30 29 C C 0 SEQCRD L G GLY GLY 31 30 C C 0 SEQCRD L S SER SER 32 31 C C 0 SEQCRD L Y TYR TYR 33 32 C C 0 SEQCRD L L LEU LEU 34 33 E E 0 SEQCRD L N ASN ASN 35 34 E E 0 SEQCRD L W TRP TRP 36 35 E E 0 SEQCRD L Y TYR TYR 37 36 E E 0 SEQCRD L Q GLN GLN 38 37 E E 0 SEQCRD L Q GLN GLN 39 38 E E 0 SEQCRD L K LYS LYS 40 39 C C 0 SEQCRD L T THR THR 41 40 C C 0 SEQCRD L G GLY GLY 42 41 C C 0 SEQCRD L K LYS LYS 43 42 C C 0 SEQCRD L A ALA ALA 44 43 C C 0 SEQCRD L P PRO PRO 45 44 C C 0 SEQCRD L K LYS LYS 46 45 E E 0 SEQCRD L A ALA ALA 47 46 E E 0 SEQCRD L L LEU LEU 48 47 E E 0 SEQCRD L I ILE ILE 49 48 E E 0 SEQCRD L Y TYR TYR 50 49 E E 0 SEQCRD L A ALA ALA 51 50 C C 0 SEQCRD L A ALA ALA 52 51 C C 0 SEQCRD L S SER SER 53 52 C C 0 SEQCRD L S SER SER 54 53 E E 0 SEQCRD L L LEU LEU 55 54 E E 0 SEQCRD L Q GLN GLN 56 55 C C 0 SEQCRD L S SER SER 57 56 C C 0 SEQCRD L G GLY GLY 58 57 C C 0 SEQCRD L V VAL VAL 59 58 C C 0 SEQCRD L P PRO PRO 60 59 C C 0 SEQCRD L S SER SER 61 60 C C 0 SEQCRD L R ARG ARG 62 61 C C 0 SEQCRD L F PHE PHE 63 62 E E 0 SEQCRD L S SER SER 64 63 E E 0 SEQCRD L G GLY GLY 65 64 E E 0 SEQCRD L S SER SER 66 65 E E 0 SEQCRD L G GLY GLY 67 66 E E 0 SEQCRD L S SER SER 68 67 C C 0 SEQCRD L G GLY GLY 69 68 C C 0 SEQCRD L T THR THR 70 69 C C 0 SEQCRD L D ASP ASP 71 70 E E 0 SEQCRD L F PHE PHE 72 71 E E 0 SEQCRD L T THR THR 73 72 E E 0 SEQCRD L L LEU LEU 74 73 E E 0 SEQCRD L T THR THR 75 74 E E 0 SEQCRD L I ILE ILE 76 75 E E 0 SEQCRD L S SER SER 77 76 C C 0 SEQCRD L S SER SER 78 77 C C 0 SEQCRD L L LEU LEU 79 78 C C 0 SEQCRD L Q GLN GLN 80 79 H H 0 SEQCRD L L LEU LEU 81 80 H H 0 SEQCRD L E GLU GLU 82 81 H H 0 SEQCRD L D ASP ASP 83 82 H H 0 SEQCRD L F PHE PHE 84 83 H H 0 SEQCRD L A ALA ALA 85 84 C C 0 SEQCRD L T THR THR 86 85 E E 0 SEQCRD L Y TYR TYR 87 86 E E 0 SEQCRD L Y TYR TYR 88 87 E E 0 SEQCRD L C CYS CYS 89 88 E E 0 SEQCRD L Q GLN GLN 90 89 E E 0 SEQCRD L Q GLN GLN 91 90 E E 0 SEQCRD L S SER SER 92 91 C C 0 SEQCRD L Y TYR TYR 93 92 C C 0 SEQCRD L S SER SER 94 93 C C 0 SEQCRD L T THR THR 95 94 C C 0 SEQCRD L P PRO PRO 96 95 C C 0 SEQCRD L S SER SER 97 96 E E 0 SEQCRD L F PHE PHE 98 97 E E 0 SEQCRD L G GLY GLY 99 98 C C 0 SEQCRD L Q GLN GLN 100 99 C C 0 SEQCRD L G GLY GLY 101 100 C C 0 SEQCRD L T THR THR 102 101 E E 0 SEQCRD L K LYS LYS 103 102 E E 0 SEQCRD L V VAL VAL 104 103 E E 0 SEQCRD L E GLU GLU 105 104 E E 0 SEQCRD L I ILE ILE 106 105 E E 0 SEQCRD L K LYS LYS 107 106 C C 0 SEQCRD L R ARG ARG 108 107 C C 0 SEQCRD L T THR THR 109 108 C C 0 SEQCRD L V VAL VAL 110 109 C C 0 SEQCRD L A ALA ALA 111 110 C C 0 SEQCRD L A ALA ALA 112 111 C C 0 SEQCRD L P PRO PRO 113 112 C C 0 SEQCRD L S SER SER 114 113 E E 0 SEQCRD L V VAL VAL 115 114 E E 0 SEQCRD L F PHE PHE 116 115 E E 0 SEQCRD L I ILE ILE 117 116 E E 0 SEQCRD L F PHE PHE 118 117 E E 0 SEQCRD L P PRO PRO 119 118 C C 0 SEQCRD L P PRO PRO 120 119 C C 0 SEQCRD L S SER SER 121 120 H H 0 SEQCRD L D ASP ASP 122 121 H H 0 SEQCRD L E GLU GLU 123 122 H H 0 SEQCRD L Q GLN GLN 124 123 H H 0 SEQCRD L L LEU LEU 125 124 H H 0 SEQCRD L K LYS LYS 126 125 H H 0 SEQCRD L S SER SER 127 126 H H 0 SEQCRD L G GLY GLY 128 127 C C 0 SEQCRD L T THR THR 129 128 E E 0 SEQCRD L A ALA ALA 130 129 E E 0 SEQCRD L S SER SER 131 130 E E 0 SEQCRD L V VAL VAL 132 131 E E 0 SEQCRD L V VAL VAL 133 132 E E 0 SEQCRD L C CYS CYS 134 133 E E 0 SEQCRD L L LEU LEU 135 134 E E 0 SEQCRD L L LEU LEU 136 135 E E 0 SEQCRD L N ASN ASN 137 136 E E 0 SEQCRD L N ASN ASN 138 137 E E 0 SEQCRD L F PHE PHE 139 138 E E 0 SEQCRD L Y TYR TYR 140 139 C C 0 SEQCRD L P PRO PRO 141 140 C C 0 SEQCRD L R ARG ARG 142 141 C C 0 SEQCRD L E GLU GLU 143 142 C C 0 SEQCRD L A ALA ALA 144 143 C C 0 SEQCRD L K LYS LYS 145 144 E E 0 SEQCRD L V VAL VAL 146 145 E E 0 SEQCRD L Q GLN GLN 147 146 E E 0 SEQCRD L W TRP TRP 148 147 E E 0 SEQCRD L K LYS LYS 149 148 E E 0 SEQCRD L V VAL VAL 150 149 E E 0 SEQCRD L D ASP ASP 151 150 C C 0 SEQCRD L N ASN ASN 152 151 C C 0 SEQCRD L A ALA ALA 153 152 E E 0 SEQCRD L L LEU LEU 154 153 E E 0 SEQCRD L Q GLN GLN 155 154 C C 0 SEQCRD L S SER SER 156 155 C C 0 SEQCRD L G GLY GLY 157 156 C C 0 SEQCRD L N ASN ASN 158 157 C C 0 SEQCRD L S SER SER 159 158 E E 0 SEQCRD L Q GLN GLN 160 159 E E 0 SEQCRD L E GLU GLU 161 160 E E 0 SEQCRD L S SER SER 162 161 E E 0 SEQCRD L V VAL VAL 163 162 E E 0 SEQCRD L T THR THR 164 163 C C 0 SEQCRD L E GLU GLU 165 164 C C 0 SEQCRD L Q GLN GLN 166 165 C C 0 SEQCRD L D ASP ASP 167 166 C C 0 SEQCRD L S SER SER 168 167 C C 0 SEQCRD L K LYS LYS 169 168 C C 0 SEQCRD L D ASP ASP 170 169 C C 0 SEQCRD L S SER SER 171 170 C C 0 SEQCRD L T THR THR 172 171 C C 0 SEQCRD L Y TYR TYR 173 172 E E 0 SEQCRD L S SER SER 174 173 E E 0 SEQCRD L L LEU LEU 175 174 E E 0 SEQCRD L S SER SER 176 175 E E 0 SEQCRD L S SER SER 177 176 E E 0 SEQCRD L T THR THR 178 177 E E 0 SEQCRD L L LEU LEU 179 178 E E 0 SEQCRD L T THR THR 180 179 E E 0 SEQCRD L L LEU LEU 181 180 E E 0 SEQCRD L S SER SER 182 181 E E 0 SEQCRD L K LYS LYS 183 182 H H 0 SEQCRD L A ALA ALA 184 183 H H 0 SEQCRD L D ASP ASP 185 184 H H 0 SEQCRD L Y TYR TYR 186 185 H H 0 SEQCRD L E GLU GLU 187 186 H H 0 SEQCRD L K LYS LYS 188 187 H H 0 SEQCRD L H HIS HIS 189 188 H H 0 SEQCRD L K LYS LYS 190 189 C C 0 SEQCRD L V VAL VAL 191 190 E E 0 SEQCRD L Y TYR TYR 192 191 E E 0 SEQCRD L A ALA ALA 193 192 E E 0 SEQCRD L C CYS CYS 194 193 E E 0 SEQCRD L E GLU GLU 195 194 E E 0 SEQCRD L V VAL VAL 196 195 E E 0 SEQCRD L T THR THR 197 196 E E 0 SEQCRD L H HIS HIS 198 197 C C 0 SEQCRD L Q GLN GLN 199 198 C C 0 SEQCRD L G GLY GLY 200 199 C C 0 SEQCRD L L LEU LEU 201 200 C C 0 SEQCRD L S SER SER 202 201 C C 0 SEQCRD L S SER SER 203 202 C C 0 SEQCRD L P PRO PRO 204 203 C C 0 SEQCRD L V VAL VAL 205 204 E E 0 SEQCRD L T THR THR 206 205 E E 0 SEQCRD L K LYS LYS 207 206 E E 0 SEQCRD L S SER SER 208 207 E E 0 SEQCRD L F PHE PHE 209 208 E E 0 SEQCRD L N ASN ASN 210 209 E E 0 SEQCRD L R ARG ARG 211 210 C C 0 SEQCRD L G GLY GLY 212 211 C C 0 PARAME method XRAY PARAME resolution 2.50 PARAME R-factor 0.236 PARAME FreeR-factor 0.277