1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 0000-0003-1839-6122 Williams, R. 0000-0002-5706-115X Gierasch, L. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic C3 H7 N O2 89.093 y ALANINE L-peptide linking C6 H15 N4 O2 1 175.209 y ARGININE L-peptide linking C4 H8 N2 O3 132.118 y ASPARAGINE L-peptide linking C4 H7 N O4 133.103 y ASPARTIC ACID L-peptide linking C3 H7 N O2 S 121.158 y CYSTEINE L-peptide linking C5 H10 N2 O3 146.144 y GLUTAMINE L-peptide linking C5 H9 N O4 147.129 y GLUTAMIC ACID L-peptide linking C2 H5 N O2 75.067 y GLYCINE peptide linking C6 H13 N O2 131.173 y LEUCINE L-peptide linking C6 H15 N2 O2 1 147.195 y LYSINE L-peptide linking C9 H11 N O2 165.189 y PHENYLALANINE L-peptide linking C5 H9 N O2 115.130 y PROLINE L-peptide linking C3 H7 N O3 105.093 y SERINE L-peptide linking C4 H9 N O3 119.119 y THREONINE L-peptide linking N 1 N N N 2 S C N 3 N C N 4 N O N 5 N C N 6 N O N 7 N H N 8 N H N 9 N H N 10 N H N 11 N H N 12 N H N 13 N H N 14 N N N 15 S C N 16 N C N 17 N O N 18 N C N 19 N C N 20 N C N 21 N N N 22 N C N 23 N N N 24 N N N 25 N O N 26 N H N 27 N H N 28 N H N 29 N H N 30 N H N 31 N H N 32 N H N 33 N H N 34 N H N 35 N H N 36 N H N 37 N H N 38 N H N 39 N H N 40 N H N 41 N N N 42 S C N 43 N C N 44 N O N 45 N C N 46 N C N 47 N O N 48 N N N 49 N O N 50 N H N 51 N H N 52 N H N 53 N H N 54 N H N 55 N H N 56 N H N 57 N H N 58 N N N 59 S C N 60 N C N 61 N O N 62 N C N 63 N C N 64 N O N 65 N O N 66 N O N 67 N H N 68 N H N 69 N H N 70 N H N 71 N H N 72 N H N 73 N H N 74 N N N 75 R C N 76 N C N 77 N O N 78 N C N 79 N S N 80 N O N 81 N H N 82 N H N 83 N H N 84 N H N 85 N H N 86 N H N 87 N H N 88 N N N 89 S C N 90 N C N 91 N O N 92 N C N 93 N C N 94 N C N 95 N O N 96 N N N 97 N O N 98 N H N 99 N H N 100 N H N 101 N H N 102 N H N 103 N H N 104 N H N 105 N H N 106 N H N 107 N H N 108 N N N 109 S C N 110 N C N 111 N O N 112 N C N 113 N C N 114 N C N 115 N O N 116 N O N 117 N O N 118 N H N 119 N H N 120 N H N 121 N H N 122 N H N 123 N H N 124 N H N 125 N H N 126 N H N 127 N N N 128 N C N 129 N C N 130 N O N 131 N O N 132 N H N 133 N H N 134 N H N 135 N H N 136 N H N 137 N N N 138 S C N 139 N C N 140 N O N 141 N C N 142 N C N 143 N C N 144 N C N 145 N O N 146 N H N 147 N H N 148 N H N 149 N H N 150 N H N 151 N H N 152 N H N 153 N H N 154 N H N 155 N H N 156 N H N 157 N H N 158 N H N 159 N N N 160 S C N 161 N C N 162 N O N 163 N C N 164 N C N 165 N C N 166 N C N 167 N N N 168 N O N 169 N H N 170 N H N 171 N H N 172 N H N 173 N H N 174 N H N 175 N H N 176 N H N 177 N H N 178 N H N 179 N H N 180 N H N 181 N H N 182 N H N 183 N H N 184 N N N 185 S C N 186 N C N 187 N O N 188 N C Y 189 N C Y 190 N C Y 191 N C Y 192 N C Y 193 N C Y 194 N C N 195 N O N 196 N H N 197 N H N 198 N H N 199 N H N 200 N H N 201 N H N 202 N H N 203 N H N 204 N H N 205 N H N 206 N H N 207 N N N 208 S C N 209 N C N 210 N O N 211 N C N 212 N C N 213 N C N 214 N O N 215 N H N 216 N H N 217 N H N 218 N H N 219 N H N 220 N H N 221 N H N 222 N H N 223 N H N 224 N N N 225 S C N 226 N C N 227 N O N 228 N C N 229 N O N 230 N O N 231 N H N 232 N H N 233 N H N 234 N H N 235 N H N 236 N H N 237 N H N 238 N N N 239 S C N 240 N C N 241 N O N 242 R C N 243 N O N 244 N C N 245 N O N 246 N H N 247 N H N 248 N H N 249 N H N 250 N H N 251 N H N 252 N H N 253 N H N 254 N H N 1 N sing N 2 N sing N 3 N sing N 4 N sing N 5 N sing N 6 N sing N 7 N doub N 8 N sing N 9 N sing N 10 N sing N 11 N sing N 12 N sing N 13 N sing N 14 N sing N 15 N sing N 16 N sing N 17 N sing N 18 N sing N 19 N doub N 20 N sing N 21 N sing N 22 N sing N 23 N sing N 24 N sing N 25 N sing N 26 N sing N 27 N sing N 28 N sing N 29 N sing N 30 N sing N 31 N sing N 32 N sing N 33 N doub N 34 N sing N 35 N sing N 36 N sing N 37 N sing N 38 N sing N 39 N sing N 40 N sing N 41 N sing N 42 N sing N 43 N sing N 44 N sing N 45 N doub N 46 N sing N 47 N sing N 48 N sing N 49 N sing N 50 N doub N 51 N sing N 52 N sing N 53 N sing N 54 N sing N 55 N sing N 56 N sing N 57 N sing N 58 N sing N 59 N sing N 60 N sing N 61 N doub N 62 N sing N 63 N sing N 64 N sing N 65 N sing N 66 N doub N 67 N sing N 68 N sing N 69 N sing N 70 N sing N 71 N sing N 72 N sing N 73 N sing N 74 N sing N 75 N sing N 76 N doub N 77 N sing N 78 N sing N 79 N sing N 80 N sing N 81 N sing N 82 N sing N 83 N sing N 84 N sing N 85 N sing N 86 N sing N 87 N sing N 88 N sing N 89 N doub N 90 N sing N 91 N sing N 92 N sing N 93 N sing N 94 N sing N 95 N sing N 96 N sing N 97 N doub N 98 N sing N 99 N sing N 100 N sing N 101 N sing N 102 N sing N 103 N sing N 104 N sing N 105 N sing N 106 N sing N 107 N sing N 108 N doub N 109 N sing N 110 N sing N 111 N sing N 112 N sing N 113 N sing N 114 N sing N 115 N sing N 116 N doub N 117 N sing N 118 N sing N 119 N sing N 120 N sing N 121 N sing N 122 N sing N 123 N sing N 124 N sing N 125 N sing N 126 N doub N 127 N sing N 128 N sing N 129 N sing N 130 N sing N 131 N sing N 132 N sing N 133 N sing N 134 N sing N 135 N doub N 136 N sing N 137 N sing N 138 N sing N 139 N sing N 140 N sing N 141 N sing N 142 N sing N 143 N sing N 144 N sing N 145 N sing N 146 N sing N 147 N sing N 148 N sing N 149 N sing N 150 N sing N 151 N sing N 152 N sing N 153 N sing N 154 N sing N 155 N sing N 156 N doub N 157 N sing N 158 N sing N 159 N sing N 160 N sing N 161 N sing N 162 N sing N 163 N sing N 164 N sing N 165 N sing N 166 N sing N 167 N sing N 168 N sing N 169 N sing N 170 N sing N 171 N sing N 172 N sing N 173 N sing N 174 N sing N 175 N sing N 176 N sing N 177 N sing N 178 N sing N 179 N sing N 180 N doub N 181 N sing N 182 N sing N 183 N sing N 184 N sing Y 185 N doub Y 186 N sing Y 187 N sing N 188 N sing Y 189 N doub N 190 N sing Y 191 N doub N 192 N sing Y 193 N sing N 194 N sing N 195 N sing N 196 N sing N 197 N sing N 198 N sing N 199 N sing N 200 N sing N 201 N sing N 202 N sing N 203 N doub N 204 N sing N 205 N sing N 206 N sing N 207 N sing N 208 N sing N 209 N sing N 210 N sing N 211 N sing N 212 N sing N 213 N sing N 214 N sing N 215 N sing N 216 N sing N 217 N sing N 218 N sing N 219 N sing N 220 N doub N 221 N sing N 222 N sing N 223 N sing N 224 N sing N 225 N sing N 226 N sing N 227 N sing N 228 N sing N 229 N sing N 230 N sing N 231 N sing N 232 N sing N 233 N doub N 234 N sing N 235 N sing N 236 N sing N 237 N sing N 238 N sing N 239 N sing N 240 N sing N 241 N sing N 242 N sing US J.Biol.Chem. JBCHA3 0071 1083-351X 113629 113629 10.1016/j.jbc.2026.113629 42854909 The cysteine-rich domain of SEP15, a selenoprotein co-chaperone of the ER chaperone, UDP-glucose:glycoprotein glucosyltransferase, adopts a novel fold. 2026 10.2210/pdb37ei/pdb pdb_000037ei 10.13018/BMR31309 5744.364 Selenoprotein F 2 man polymer 15 kDa selenoprotein no no FGAEFSSEACRELGFSSNLLCSSCDLLGQFNLLQLDPDCRGCCQEEAQFETK FGAEFSSEACRELGFSSNLLCSSCDLLGQFNLLQLDPDCRGCCQEEAQFETK A,B polypeptide(L) n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n human sample 1 52 SELENOF, SEP15 9606 Homo sapiens 562 Escherichia coli SHuffle Biological sequence repository Initial release 1 0 2026-10-28 United States National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM118161 gierasch@umass.edu 0000-0002-5706-115X Lila Gierasch M principal investigator/group leader Solution struture of the Cys-rich domain of the 15 kDa selenoprotein N RCSB Y RCSB 2026-07-16 REL REL Y A CYS 10 Disulfide bridge SG A CYS 10 A CYS 42 SG A CYS 42 1_555 1_555 None A CYS 21 Disulfide bridge SG A CYS 21 A CYS 43 SG A CYS 43 1_555 1_555 None A CYS 24 Disulfide bridge SG A CYS 24 A CYS 39 SG A CYS 39 1_555 1_555 None B CYS 10 Disulfide bridge SG B CYS 10 B CYS 42 SG B CYS 42 1_555 1_555 None B CYS 21 Disulfide bridge SG B CYS 21 B CYS 43 SG B CYS 43 1_555 1_555 None B CYS 24 Disulfide bridge SG B CYS 24 B CYS 39 SG B CYS 39 1_555 1_555 None structures with the lowest energy 50 20 isotropic 1 1D Proton isotropic 1 1D Proton isotropic 1 1D Proton isotropic 1 2D 1H-13C HSQC isotropic 1 2D 1H-15N HSQC isotropic 2 3D 1H-13C NOESY isotropic 1 2D 1H-1H NOESY isotropic 1 3D HNCA isotropic 1 3D HN(CO)CA isotropic 1 3D HNCACB isotropic 1 3D CBCA(CO)NH isotropic 2 3D HCCH-COSY isotropic 2 3D HCCH-TOCSY isotropic 1 3D 1H-15N TOCSY isotropic 1 3D 1H-15N NOESY isotropic 2 3D 1H-13C half-filtered half-edited NOESY isotropic 2 3D HCCH-COSY aromatic 800 uM [U-15N] 20 mM natural abundance 100 mM natural abundance 10 uM natural abundance 0.02 % w/v natural abundance 400 uM natural abundance 20 mM natural abundance 100 mM natural abundance 10 uM natural abundance 0.02 % w/v natural abundance 800 uM [U-13C; U-15N] 20 mM natural abundance 100 mM natural abundance 10 uM natural abundance 0.02 % w/v natural abundance 800 uM [U-13C; U-15N] 20 mM natural abundance 100 mM natural abundance 10 uM natural abundance 0.02 % w/v natural abundance 100 mM conditions_1 6 pH 1 atm 298 K cartesian dynamics torsion angle dynamics 1 medoid 800 uM [U-15N] CRD, 20 mM MES, 100 mM sodium chloride, 10 uM DSS, 0.02 % w/v sodium azide, 95% H2O/5% D2O 15N_sample 95% H2O/5% D2O solution 400 uM CRD, 20 mM MES, 100 mM sodium chloride, 10 uM DSS, 0.02 % w/v sodium azide, 100% D2O NA_sample 100% D2O solution 800 uM [U-13C; U-15N] CRD, 20 mM MES, 100 mM sodium chloride, 10 uM DSS, 0.02 % w/v sodium azide, 100% D2O 15N13C_sample 100% D2O solution 800 uM [U-13C; U-15N] CRD, 800 uM CRD, 20 mM MES, 100 mM sodium chloride, 10 uM DSS, 0.02 % w/v sodium azide, 100% D2O 1:1 mixture of labelled and unlabelled CRD MixedLabel_sample 100% D2O solution Linge, O'Donoghue and Nilges structure calculation ARIA Bruker Biospin collection TopSpin Lee chemical shift assignment NMRFAM-SPARKY Lee peak picking NMRFAM-SPARKY Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax processing NMRPipe Brunger, Adams, Clore, Gros, Nilges and Read refinement CNS 600 Bruker AVANCE III 800 Bruker AVANCE NEO PHE 1 n 1 PHE 1 A GLY 2 n 2 GLY 2 A ALA 3 n 3 ALA 3 A GLU 4 n 4 GLU 4 A PHE 5 n 5 PHE 5 A SER 6 n 6 SER 6 A SER 7 n 7 SER 7 A GLU 8 n 8 GLU 8 A ALA 9 n 9 ALA 9 A CYS 10 n 10 CYS 10 A ARG 11 n 11 ARG 11 A GLU 12 n 12 GLU 12 A LEU 13 n 13 LEU 13 A GLY 14 n 14 GLY 14 A PHE 15 n 15 PHE 15 A SER 16 n 16 SER 16 A SER 17 n 17 SER 17 A ASN 18 n 18 ASN 18 A LEU 19 n 19 LEU 19 A LEU 20 n 20 LEU 20 A CYS 21 n 21 CYS 21 A SER 22 n 22 SER 22 A SER 23 n 23 SER 23 A CYS 24 n 24 CYS 24 A ASP 25 n 25 ASP 25 A LEU 26 n 26 LEU 26 A LEU 27 n 27 LEU 27 A GLY 28 n 28 GLY 28 A GLN 29 n 29 GLN 29 A PHE 30 n 30 PHE 30 A ASN 31 n 31 ASN 31 A LEU 32 n 32 LEU 32 A LEU 33 n 33 LEU 33 A GLN 34 n 34 GLN 34 A LEU 35 n 35 LEU 35 A ASP 36 n 36 ASP 36 A PRO 37 n 37 PRO 37 A ASP 38 n 38 ASP 38 A CYS 39 n 39 CYS 39 A ARG 40 n 40 ARG 40 A GLY 41 n 41 GLY 41 A CYS 42 n 42 CYS 42 A CYS 43 n 43 CYS 43 A GLN 44 n 44 GLN 44 A GLU 45 n 45 GLU 45 A GLU 46 n 46 GLU 46 A ALA 47 n 47 ALA 47 A GLN 48 n 48 GLN 48 A PHE 49 n 49 PHE 49 A GLU 50 n 50 GLU 50 A THR 51 n 51 THR 51 A LYS 52 n 52 LYS 52 A PHE 1 n 1 PHE 1 B GLY 2 n 2 GLY 2 B ALA 3 n 3 ALA 3 B GLU 4 n 4 GLU 4 B PHE 5 n 5 PHE 5 B SER 6 n 6 SER 6 B SER 7 n 7 SER 7 B GLU 8 n 8 GLU 8 B ALA 9 n 9 ALA 9 B CYS 10 n 10 CYS 10 B ARG 11 n 11 ARG 11 B GLU 12 n 12 GLU 12 B LEU 13 n 13 LEU 13 B GLY 14 n 14 GLY 14 B PHE 15 n 15 PHE 15 B SER 16 n 16 SER 16 B SER 17 n 17 SER 17 B ASN 18 n 18 ASN 18 B LEU 19 n 19 LEU 19 B LEU 20 n 20 LEU 20 B CYS 21 n 21 CYS 21 B SER 22 n 22 SER 22 B SER 23 n 23 SER 23 B CYS 24 n 24 CYS 24 B ASP 25 n 25 ASP 25 B LEU 26 n 26 LEU 26 B LEU 27 n 27 LEU 27 B GLY 28 n 28 GLY 28 B GLN 29 n 29 GLN 29 B PHE 30 n 30 PHE 30 B ASN 31 n 31 ASN 31 B LEU 32 n 32 LEU 32 B LEU 33 n 33 LEU 33 B GLN 34 n 34 GLN 34 B LEU 35 n 35 LEU 35 B ASP 36 n 36 ASP 36 B PRO 37 n 37 PRO 37 B ASP 38 n 38 ASP 38 B CYS 39 n 39 CYS 39 B ARG 40 n 40 ARG 40 B GLY 41 n 41 GLY 41 B CYS 42 n 42 CYS 42 B CYS 43 n 43 CYS 43 B GLN 44 n 44 GLN 44 B GLU 45 n 45 GLU 45 B GLU 46 n 46 GLU 46 B ALA 47 n 47 ALA 47 B GLN 48 n 48 GLN 48 B PHE 49 n 49 PHE 49 B GLU 50 n 50 GLU 50 B THR 51 n 51 THR 51 B LYS 52 n 52 LYS 52 B author_and_software_defined_assembly 2 dimeric not applicable NMR Distance Restraints gel filtration NMR relaxation study 1.0 0.0 0.0 0.0 1.0 0.0 0.0 0.0 1.0 1_555 x,y,z identity operation 0.0 0.0 0.0 17 A A O H LEU GLN 19 44 1.59 17 B B O H LEU GLN 19 44 1.59 1 A ALA 3 69.79 -52.00 1 A THR 51 65.52 68.47 1 B ALA 3 69.47 -51.96 1 B THR 51 66.14 68.13 2 A ALA 3 68.27 -55.53 2 A GLU 45 64.57 -83.87 2 A ALA 47 -153.39 -47.01 2 B ALA 3 67.83 -55.74 2 B GLU 45 64.11 -83.96 2 B ALA 47 -153.29 -47.04 3 A ALA 3 69.59 -57.11 3 A GLU 45 61.06 -89.64 3 A THR 51 -166.96 41.31 3 B ALA 3 69.54 -56.90 3 B GLU 45 60.99 -89.94 3 B THR 51 -166.31 40.84 4 A ALA 3 67.51 -9.44 4 A GLU 45 64.51 -86.71 4 B ALA 3 67.56 -9.83 4 B GLU 45 64.26 -86.81 5 A ALA 3 69.00 -58.88 5 A GLU 45 65.70 -79.16 5 B ALA 3 68.84 -58.72 5 B GLU 45 65.68 -78.54 6 A ALA 3 68.35 -59.08 6 A GLU 45 68.42 -62.86 6 A GLN 48 35.74 50.66 6 A GLU 50 48.79 72.44 6 A THR 51 -142.77 -37.96 6 B ALA 3 68.52 -58.61 6 B GLU 45 68.88 -62.38 6 B GLN 48 35.78 50.57 6 B GLU 50 48.88 72.73 6 B THR 51 -142.94 -38.56 7 A ALA 3 66.08 -61.19 7 A GLU 46 63.22 92.29 7 A ALA 47 -67.66 -72.01 7 B ALA 3 66.11 -60.86 7 B GLU 46 63.57 92.92 7 B ALA 47 -68.38 -71.60 8 A ALA 3 69.07 -53.34 8 A THR 51 62.63 81.32 8 B ALA 3 68.84 -53.34 8 B THR 51 62.27 80.96 9 A ALA 3 66.98 -63.88 9 B ALA 3 67.23 -64.07 10 A ALA 3 69.15 -40.97 10 A GLU 45 63.37 -92.78 10 A ALA 47 -134.92 -43.05 10 B ALA 3 69.12 -40.77 10 B GLU 45 63.85 -92.54 10 B ALA 47 -134.08 -43.50 11 A ALA 3 69.67 -58.90 11 A GLU 45 68.43 -69.44 11 A ALA 47 70.20 55.51 11 B ALA 3 69.40 -58.68 11 B GLU 45 68.86 -69.20 11 B ALA 47 70.34 55.74 12 A ALA 3 65.63 -68.40 12 A ALA 47 63.24 176.62 12 B ALA 3 65.78 -68.14 12 B ALA 47 63.45 176.45 13 A ALA 3 70.27 -38.11 13 A GLU 45 68.29 -75.39 13 B ALA 3 69.98 -37.45 13 B GLU 45 68.54 -75.21 14 A ALA 3 68.06 -62.93 14 A GLU 45 67.87 -67.71 14 A GLU 50 68.67 101.76 14 B ALA 3 68.30 -62.82 14 B GLU 45 68.08 -67.80 14 B GLU 50 68.48 102.43 15 A ALA 3 69.48 -50.84 15 A GLU 45 64.74 -85.21 15 A ALA 47 -151.22 -63.03 15 B ALA 3 69.58 -51.31 15 B GLU 45 64.55 -85.05 15 B ALA 47 -151.21 -62.88 16 A ALA 3 69.16 -57.34 16 A GLU 45 64.96 -86.97 16 A ALA 47 -111.04 78.50 16 B ALA 3 69.38 -58.06 16 B GLU 45 65.30 -86.85 16 B ALA 47 -111.04 77.91 17 A ALA 3 -145.82 -32.85 17 A GLU 45 66.56 -73.13 17 A ALA 47 -148.01 -32.61 17 B ALA 3 -146.04 -33.39 17 B GLU 45 66.75 -73.01 17 B ALA 47 -147.67 -33.20 18 A ALA 3 70.12 -33.92 18 A GLU 46 72.01 160.85 18 A THR 51 73.31 -49.56 18 B ALA 3 70.11 -33.39 18 B GLU 46 71.82 160.57 18 B THR 51 73.15 -49.76 19 A ALA 3 69.55 -45.02 19 A GLU 46 71.65 168.40 19 A ALA 47 -143.13 -44.04 19 B ALA 3 69.30 -44.91 19 B GLU 46 72.11 168.82 19 B ALA 47 -143.64 -43.38 20 A ALA 3 67.02 -10.88 20 A GLU 46 70.07 159.88 20 B ALA 3 67.19 -10.46 20 B GLU 46 70.35 159.26 model building https://www.rbvi.ucsf.edu/chimerax/ UCSF ChimeraX macOS package 1.12/v10 N Solution structure of the Cys-rich domain of the 15 kDa selenoprotein 1 N N 1 N N A SER 6 A SER 6 HELX_P A GLY 14 A GLY 14 1 AA1 9 A LEU 20 A LEU 20 HELX_P A ASP 25 A ASP 25 1 AA2 6 A LEU 26 A LEU 26 HELX_P A ASN 31 A ASN 31 5 AA3 6 A LEU 32 A LEU 32 HELX_P A GLN 34 A GLN 34 5 AA4 3 A LEU 35 A LEU 35 HELX_P A CYS 43 A CYS 43 1 AA5 9 B SER 6 B SER 6 HELX_P B GLY 14 B GLY 14 1 AA6 9 B LEU 20 B LEU 20 HELX_P B ASP 25 B ASP 25 1 AA7 6 B LEU 26 B LEU 26 HELX_P B ASN 31 B ASN 31 5 AA8 6 B LEU 32 B LEU 32 HELX_P B GLN 34 B GLN 34 5 AA9 3 B LEU 35 B LEU 35 HELX_P B CYS 43 B CYS 43 1 AB1 9 disulf 2.027 A CYS 10 A SG CYS 10 1_555 A CYS 42 A SG CYS 42 1_555 disulf 2.032 A CYS 21 A SG CYS 21 1_555 A CYS 43 A SG CYS 43 1_555 disulf 2.029 A CYS 24 A SG CYS 24 1_555 A CYS 39 A SG CYS 39 1_555 disulf 2.027 B CYS 10 B SG CYS 10 1_555 B CYS 42 B SG CYS 42 1_555 disulf 2.033 B CYS 21 B SG CYS 21 1_555 B CYS 43 B SG CYS 43 1_555 disulf 2.030 B CYS 24 B SG CYS 24 1_555 B CYS 39 B SG CYS 39 1_555 CHAPERONE Endoplasmic Reticulum, CHAPERONE SEP15_HUMAN UNP 1 32 O60613 FGAEFSSEACRELGFSSNLLCSSCDLLGQFNLLQLDPDCRGCCQEEAQFETK 32 83 37EI 1 52 O60613 A 1 1 52 32 83 37EI 1 52 O60613 B 1 1 52