eF-site ID 4ixr-a PDB Code 4ixr Chain a click to enlarge Title RT fs X-ray diffraction of Photosystem II, first illuminated state Classification PHOTOSYNTHESIS Compound Photosystem Q(B) protein 1 Source ORGANISM_SCIENTIFIC: Thermosynechococcus elongatus; Sequence a:  SANLWERFCNWVTSTDNRLYVGWFGVIMIPTLLAATICFV IAFIAAPPVDIDGIREPVSGSLLYGNNIITGAVVPSSNAI GLHFYPIWEAASLDEWLYNGGPYQLIIFHFLLGASCYMGR QWELSYRLGMRPWICVAYSAPLASAFAVFLIYPIGQGSFS DGMPLGISGTFNFMIVFQAEHNILMHPFHQLGVAGVFGGA LFCAMHGSLVTSSLIRETTETESANYGYKFGQEEETYNIV AAHGYFGRLIFQYASFNNSRSLHFFLAAWPVVGVWFTALG ISTMAFNLNGFNFNHSVIDAKGNVINTWADIINRANLGME VMHERNAHNFPLDLA Description Functional site 1) chain a residue 46 type sequence I description BINDING SITE FOR RESIDUE DGD B 627 source : EC9 2) chain a residue 100 type sequence A description BINDING SITE FOR RESIDUE LMT B 629 source : FC2 3) chain a residue 20 type sequence W description BINDING SITE FOR RESIDUE SQD a 401 source : KC5 4) chain a residue 26 type sequence N description BINDING SITE FOR RESIDUE SQD a 401 source : KC5 5) chain a residue 27 type sequence R description BINDING SITE FOR RESIDUE SQD a 401 source : KC5 6) chain a residue 28 type sequence L description BINDING SITE FOR RESIDUE SQD a 401 source : KC5 7) chain a residue 41 type sequence L description BINDING SITE FOR RESIDUE SQD a 401 source : KC5 8) chain a residue 72 type sequence L description BINDING SITE FOR RESIDUE LMG a 402 source : KC6 9) chain a residue 73 type sequence Y description BINDING SITE FOR RESIDUE LMG a 402 source : KC6 10) chain a residue 102 type sequence L description BINDING SITE FOR RESIDUE LMG a 402 source : KC6 11) chain a residue 103 type sequence D description BINDING SITE FOR RESIDUE LMG a 402 source : KC6 12) chain a residue 215 type sequence H description BINDING SITE FOR RESIDUE FE2 a 403 source : KC7 13) chain a residue 272 type sequence H description BINDING SITE FOR RESIDUE FE2 a 403 source : KC7 14) chain a residue 119 type sequence F description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 15) chain a residue 147 type sequence Y description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 16) chain a residue 150 type sequence P description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 17) chain a residue 153 type sequence S description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 18) chain a residue 157 type sequence V description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 19) chain a residue 183 type sequence M description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 20) chain a residue 184 type sequence I description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 21) chain a residue 186 type sequence F description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 22) chain a residue 187 type sequence Q description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 23) chain a residue 193 type sequence L description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 24) chain a residue 198 type sequence H description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 25) chain a residue 201 type sequence G description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 26) chain a residue 205 type sequence V description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 27) chain a residue 206 type sequence F description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 28) chain a residue 283 type sequence V description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 29) chain a residue 286 type sequence T description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 30) chain a residue 290 type sequence I description BINDING SITE FOR RESIDUE CLA a 404 source : KC8 31) chain a residue 45 type sequence T description BINDING SITE FOR RESIDUE CLA a 405 source : KC9 32) chain a residue 157 type sequence V description BINDING SITE FOR RESIDUE CLA a 405 source : KC9 33) chain a residue 158 type sequence F description BINDING SITE FOR RESIDUE CLA a 405 source : KC9 34) chain a residue 172 type sequence M description BINDING SITE FOR RESIDUE CLA a 405 source : KC9 35) chain a residue 176 type sequence I description BINDING SITE FOR RESIDUE CLA a 405 source : KC9 36) chain a residue 179 type sequence T description BINDING SITE FOR RESIDUE CLA a 405 source : KC9 37) chain a residue 180 type sequence F description BINDING SITE FOR RESIDUE CLA a 405 source : KC9 38) chain a residue 183 type sequence M description BINDING SITE FOR RESIDUE CLA a 405 source : KC9 39) chain a residue 199 type sequence Q description BINDING SITE FOR RESIDUE CLA a 406 source : LC1 40) chain a residue 202 type sequence V description BINDING SITE FOR RESIDUE CLA a 406 source : LC1 41) chain a residue 203 type sequence A description BINDING SITE FOR RESIDUE CLA a 406 source : LC1 42) chain a residue 278 type sequence W description BINDING SITE FOR RESIDUE CLA a 406 source : LC1 43) chain a residue 41 type sequence L description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 44) chain a residue 44 type sequence A description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 45) chain a residue 45 type sequence T description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 46) chain a residue 115 type sequence I description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 47) chain a residue 126 type sequence Y description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 48) chain a residue 130 type sequence Q description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 49) chain a residue 146 type sequence A description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 50) chain a residue 147 type sequence Y description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 51) chain a residue 150 type sequence P description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 52) chain a residue 174 type sequence L description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 53) chain a residue 283 type sequence V description BINDING SITE FOR RESIDUE PHO a 407 source : LC2 54) chain a residue 206 type sequence F description BINDING SITE FOR RESIDUE PHO a 408 source : LC3 55) chain a residue 209 type sequence A description BINDING SITE FOR RESIDUE PHO a 408 source : LC3 56) chain a residue 210 type sequence L description BINDING SITE FOR RESIDUE PHO a 408 source : LC3 57) chain a residue 214 type sequence M description BINDING SITE FOR RESIDUE PHO a 408 source : LC3 58) chain a residue 258 type sequence L description BINDING SITE FOR RESIDUE PHO a 408 source : LC3 59) chain a residue 36 type sequence I description BINDING SITE FOR RESIDUE CLA a 409 source : LC4 60) chain a residue 40 type sequence T description BINDING SITE FOR RESIDUE CLA a 409 source : LC4 61) chain a residue 93 type sequence F description BINDING SITE FOR RESIDUE CLA a 409 source : LC4 62) chain a residue 95 type sequence P description BINDING SITE FOR RESIDUE CLA a 409 source : LC4 63) chain a residue 96 type sequence I description BINDING SITE FOR RESIDUE CLA a 409 source : LC4 64) chain a residue 97 type sequence W description BINDING SITE FOR RESIDUE CLA a 409 source : LC4 65) chain a residue 114 type sequence L description BINDING SITE FOR RESIDUE CLA a 409 source : LC4 66) chain a residue 118 type sequence H description BINDING SITE FOR RESIDUE CLA a 409 source : LC4 67) chain a residue 215 type sequence H description BINDING SITE FOR RESIDUE PL9 a 410 source : LC5 68) chain a residue 218 type sequence L description BINDING SITE FOR RESIDUE PL9 a 410 source : LC5 69) chain a residue 252 type sequence H description BINDING SITE FOR RESIDUE PL9 a 410 source : LC5 70) chain a residue 255 type sequence F description BINDING SITE FOR RESIDUE PL9 a 410 source : LC5 71) chain a residue 264 type sequence S description BINDING SITE FOR RESIDUE PL9 a 410 source : LC5 72) chain a residue 265 type sequence F description BINDING SITE FOR RESIDUE PL9 a 410 source : LC5 73) chain a residue 271 type sequence L description BINDING SITE FOR RESIDUE PL9 a 410 source : LC5 74) chain a residue 274 type sequence F description BINDING SITE FOR RESIDUE PL9 a 410 source : LC5 75) chain a residue 170 type sequence D description BINDING SITE FOR RESIDUE OEC a 411 source : LC6 76) chain a residue 189 type sequence E description BINDING SITE FOR RESIDUE OEC a 411 source : LC6 77) chain a residue 332 type sequence H description BINDING SITE FOR RESIDUE OEC a 411 source : LC6 78) chain a residue 333 type sequence E description BINDING SITE FOR RESIDUE OEC a 411 source : LC6 79) chain a residue 342 type sequence D description BINDING SITE FOR RESIDUE OEC a 411 source : LC6 80) chain a residue 344 type sequence A description BINDING SITE FOR RESIDUE OEC a 411 source : LC6 81) chain a residue 35 type sequence V description BINDING SITE FOR RESIDUE BCR a 412 source : LC7 82) chain a residue 38 type sequence I description BINDING SITE FOR RESIDUE BCR a 412 source : LC7 83) chain a residue 42 type sequence L description BINDING SITE FOR RESIDUE BCR a 412 source : LC7 84) chain a residue 43 type sequence A description BINDING SITE FOR RESIDUE BCR a 412 source : LC7 85) chain a residue 106 type sequence L description BINDING SITE FOR RESIDUE BCR a 412 source : LC7 86) chain a residue 93 type sequence F description BINDING SITE FOR RESIDUE DGD a 413 source : LC8 87) chain a residue 97 type sequence W description BINDING SITE FOR RESIDUE DGD a 413 source : LC8 88) chain a residue 98 type sequence E description BINDING SITE FOR RESIDUE DGD a 413 source : LC8 89) chain a residue 140 type sequence R description BINDING SITE FOR RESIDUE LHG a 414 source : LC9 90) chain a residue 142 type sequence W description BINDING SITE FOR RESIDUE LHG a 414 source : LC9 91) chain a residue 145 type sequence V description BINDING SITE FOR RESIDUE LHG a 414 source : LC9 92) chain a residue 273 type sequence F description BINDING SITE FOR RESIDUE LHG a 414 source : LC9 93) chain a residue 267 type sequence N description BINDING SITE FOR RESIDUE SQD a 415 source : MC1 94) chain a residue 270 type sequence S description BINDING SITE FOR RESIDUE SQD a 415 source : MC1 95) chain a residue 273 type sequence F description BINDING SITE FOR RESIDUE SQD a 415 source : MC1 96) chain a residue 274 type sequence F description BINDING SITE FOR RESIDUE SQD a 415 source : MC1 97) chain a residue 232 type sequence S description BINDING SITE FOR RESIDUE LMG a 416 source : MC2 98) chain a residue 234 type sequence N description BINDING SITE FOR RESIDUE LMG a 416 source : MC2 99) chain a residue 262 type sequence Y description BINDING SITE FOR RESIDUE LHG a 417 source : MC3 100) chain a residue 264 type sequence S description BINDING SITE FOR RESIDUE LHG a 417 source : MC3 101) chain a residue 266 type sequence N description BINDING SITE FOR RESIDUE LHG a 417 source : MC3 102) chain a residue 181 type sequence N description BINDING SITE FOR RESIDUE CL a 418 source : MC4 103) chain a residue 333 type sequence E description BINDING SITE FOR RESIDUE CL a 418 source : MC4 104) chain a residue 234 type sequence N description BINDING SITE FOR RESIDUE LMG b 624 source : PC1 105) chain a residue 285 type sequence F description BINDING SITE FOR RESIDUE CLA c 504 source : PC8 106) chain a residue 33 type sequence F description BINDING SITE FOR RESIDUE CLA c 505 source : PC9 107) chain a residue 127 type sequence M description BINDING SITE FOR RESIDUE CLA c 505 source : PC9 108) chain a residue 128 type sequence G description BINDING SITE FOR RESIDUE CLA c 505 source : PC9 109) chain a residue 131 type sequence W description BINDING SITE FOR RESIDUE CLA c 505 source : PC9 110) chain a residue 163 type sequence I description BINDING SITE FOR RESIDUE DGD c 516 source : RC2 111) chain a residue 197 type sequence F description BINDING SITE FOR RESIDUE DGD c 517 source : RC3 112) chain a residue 292 type sequence T description BINDING SITE FOR RESIDUE DGD c 517 source : RC3 113) chain a residue 200 type sequence L description BINDING SITE FOR RESIDUE DGD c 518 source : RC4 114) chain a residue 278 type sequence W description BINDING SITE FOR RESIDUE DGD c 518 source : RC4 115) chain a residue 300 type sequence F description BINDING SITE FOR RESIDUE DGD c 518 source : RC4 116) chain a residue 301 type sequence N description BINDING SITE FOR RESIDUE DGD c 518 source : RC4 117) chain a residue 305 type sequence S description BINDING SITE FOR RESIDUE DGD c 518 source : RC4 118) chain a residue 215 type sequence H description BINDING SITE FOR RESIDUE BCT d 401 source : RC6 119) chain a residue 244 type sequence E description BINDING SITE FOR RESIDUE BCT d 401 source : RC6 120) chain a residue 246 type sequence Y description BINDING SITE FOR RESIDUE BCT d 401 source : RC6 121) chain a residue 272 type sequence H description BINDING SITE FOR RESIDUE BCT d 401 source : RC6 122) chain a residue 206 type sequence F description BINDING SITE FOR RESIDUE CLA d 402 source : RC7 123) chain a residue 77 type sequence I description BINDING SITE FOR RESIDUE PL9 d 404 source : RC9 124) chain a residue 262 type sequence Y description BINDING SITE FOR RESIDUE LMG e 101 source : SC7 125) chain a residue 344 type BINDING sequence A description BINDING => ECO:0000255|HAMAP-Rule:MF_01379, ECO:0000269|PubMed:19219048, ECO:0000303|PubMed:14764885, ECO:0000303|PubMed:16355230, ECO:0000303|PubMed:20558739, ECO:0000303|PubMed:21367867, ECO:0000303|PubMed:23413188, ECO:0000303|PubMed:25043005 source Swiss-Prot : SWS_FT_FI11 126) chain a residue 161 type SITE sequence Y description Tyrosine radical intermediate => ECO:0000255|HAMAP-Rule:MF_01379, ECO:0000303|PubMed:11217865, ECO:0000303|PubMed:14764885, ECO:0000303|PubMed:19219048, ECO:0000303|PubMed:21367867, ECO:0000303|DOI:10.1039/B406989G source Swiss-Prot : SWS_FT_FI12 127) chain a residue 190 type SITE sequence H description Stabilizes free radical intermediate => ECO:0000255|HAMAP-Rule:MF_01379 source Swiss-Prot : SWS_FT_FI13 128) chain a residue 344 type SITE sequence A description Cleavage; by CtpA => ECO:0000255|HAMAP-Rule:MF_01379 source Swiss-Prot : SWS_FT_FI14 129) chain a residue 118 type TOPO_DOM sequence H description Lumenal => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ source Swiss-Prot : SWS_FT_FI4 130) chain a residue 198 type TOPO_DOM sequence H description Lumenal => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ source Swiss-Prot : SWS_FT_FI4 131) chain a residue 126 type MOD_RES sequence Y description N-formylmethionine => ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739 source Swiss-Prot : SWS_FT_FI5 132) chain a residue 215 type MOD_RES sequence H description N-formylmethionine => ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739 source Swiss-Prot : SWS_FT_FI5 133) chain a residue 272 type MOD_RES sequence H description N-formylmethionine => ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739 source Swiss-Prot : SWS_FT_FI5 134) chain a residue 170 type BINDING sequence D description BINDING => ECO:0000255|HAMAP-Rule:MF_01383, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:19219048, ECO:0000303|PubMed:14764885, ECO:0000303|PubMed:20558739, ECO:0000303|PubMed:21367867, ECO:0000303|PubMed:22665786, ECO:0000303|PubMed:23413188, ECO:0000303|PubMed:25043005, ECO:0000303|DOI:10.1039/B406989G source Swiss-Prot : SWS_FT_FI8 135) chain a residue 189 type BINDING sequence E description BINDING => ECO:0000255|HAMAP-Rule:MF_01383, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:19219048, ECO:0000303|PubMed:14764885, ECO:0000303|PubMed:20558739, ECO:0000303|PubMed:21367867, ECO:0000303|PubMed:22665786, ECO:0000303|PubMed:23413188, ECO:0000303|PubMed:25043005, ECO:0000303|DOI:10.1039/B406989G source Swiss-Prot : SWS_FT_FI8 136) chain a residue 332 type BINDING sequence H description BINDING => ECO:0000255|HAMAP-Rule:MF_01383, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:19219048, ECO:0000303|PubMed:14764885, ECO:0000303|PubMed:20558739, ECO:0000303|PubMed:21367867, ECO:0000303|PubMed:22665786, ECO:0000303|PubMed:23413188, ECO:0000303|PubMed:25043005, ECO:0000303|DOI:10.1039/B406989G source Swiss-Prot : SWS_FT_FI8 137) chain a residue 333 type BINDING sequence E description BINDING => ECO:0000255|HAMAP-Rule:MF_01383, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:19219048, ECO:0000303|PubMed:14764885, ECO:0000303|PubMed:20558739, ECO:0000303|PubMed:21367867, ECO:0000303|PubMed:22665786, ECO:0000303|PubMed:23413188, ECO:0000303|PubMed:25043005, ECO:0000303|DOI:10.1039/B406989G source Swiss-Prot : SWS_FT_FI8

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