eF-site ID 4ixq-d
PDB Code 4ixq
Chain d

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Title RT fs X-ray diffraction of Photosystem II, dark state
Classification PHOTOSYNTHESIS
Compound Photosystem Q(B) protein 1
Source ORGANISM_SCIENTIFIC: Thermosynechococcus elongatus;
Sequence d:  GWFDILDDWLKRDRFVFVGWSGILLFPCAYLALGGWLTGT
TFVTSWYTHGLASSYLEGCNFLTVAVSTPANSMGHSLLLL
WGPEAQGDFTRWCQLGGLWTFIALHGAFGLIGFMLRQFEI
ARLVGVRPYNAIAFSAPIAVFVSVFLIYPLGQSSWFFAPS
FGVAAIFRFLLFFQGFHNWTLNPFHMMGVAGVLGGALLCA
IHGATVENTLFQDGEGASTFRAFNPTQAEETYSMVTANRF
WSQIFGIAFSNKRWLHFFMLFVPVTGLWMSAIGVVGLALN
LRSYDFISQEIRAAEDPEFETFYTKNLLLNEGIRAWMAPQ
DQPHENFVFPEEVLPRGNAL
Description


Functional site

1) chain d
residue 304
type
sequence R
description BINDING SITE FOR RESIDUE LMG a 402
source : KC8

2) chain d
residue 214
type
sequence H
description BINDING SITE FOR RESIDUE FE2 a 403
source : KC9

3) chain d
residue 268
type
sequence H
description BINDING SITE FOR RESIDUE FE2 a 403
source : KC9

4) chain d
residue 182
type
sequence L
description BINDING SITE FOR RESIDUE CLA a 404
source : LC1

5) chain d
residue 205
type
sequence L
description BINDING SITE FOR RESIDUE CLA a 404
source : LC1

6) chain d
residue 198
type
sequence M
description BINDING SITE FOR RESIDUE CLA a 405
source : LC2

7) chain d
residue 201
type
sequence V
description BINDING SITE FOR RESIDUE CLA a 405
source : LC2

8) chain d
residue 157
type
sequence F
description BINDING SITE FOR RESIDUE CLA a 406
source : LC3

9) chain d
residue 175
type
sequence V
description BINDING SITE FOR RESIDUE CLA a 406
source : LC3

10) chain d
residue 178
type
sequence I
description BINDING SITE FOR RESIDUE CLA a 406
source : LC3

11) chain d
residue 179
type
sequence F
description BINDING SITE FOR RESIDUE CLA a 406
source : LC3

12) chain d
residue 181
type
sequence F
description BINDING SITE FOR RESIDUE CLA a 406
source : LC3

13) chain d
residue 182
type
sequence L
description BINDING SITE FOR RESIDUE CLA a 406
source : LC3

14) chain d
residue 205
type
sequence L
description BINDING SITE FOR RESIDUE PHO a 407
source : LC4

15) chain d
residue 208
type
sequence A
description BINDING SITE FOR RESIDUE PHO a 407
source : LC4

16) chain d
residue 209
type
sequence L
description BINDING SITE FOR RESIDUE PHO a 407
source : LC4

17) chain d
residue 213
type
sequence I
description BINDING SITE FOR RESIDUE PHO a 407
source : LC4

18) chain d
residue 253
type
sequence W
description BINDING SITE FOR RESIDUE PHO a 407
source : LC4

19) chain d
residue 257
type
sequence F
description BINDING SITE FOR RESIDUE PHO a 407
source : LC4

20) chain d
residue 48
type
sequence W
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

21) chain d
residue 118
type
sequence G
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

22) chain d
residue 122
type
sequence L
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

23) chain d
residue 125
type
sequence F
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

24) chain d
residue 129
type
sequence Q
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

25) chain d
residue 142
type
sequence N
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

26) chain d
residue 145
type
sequence A
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

27) chain d
residue 146
type
sequence F
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

28) chain d
residue 148
type
sequence A
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

29) chain d
residue 149
type
sequence P
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

30) chain d
residue 153
type
sequence F
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

31) chain d
residue 173
type
sequence F
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

32) chain d
residue 275
type
sequence P
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

33) chain d
residue 279
type
sequence L
description BINDING SITE FOR RESIDUE PHO a 408
source : LC5

34) chain d
residue 38
type
sequence F
description BINDING SITE FOR RESIDUE PL9 a 410
source : LC7

35) chain d
residue 41
type
sequence A
description BINDING SITE FOR RESIDUE PL9 a 410
source : LC7

36) chain d
residue 42
type
sequence Y
description BINDING SITE FOR RESIDUE PL9 a 410
source : LC7

37) chain d
residue 45
type
sequence L
description BINDING SITE FOR RESIDUE PL9 a 410
source : LC7

38) chain d
residue 220
type
sequence N
description BINDING SITE FOR RESIDUE LHG a 414
source : MC2

39) chain d
residue 229
type
sequence A
description BINDING SITE FOR RESIDUE LHG a 414
source : MC2

40) chain d
residue 230
type
sequence S
description BINDING SITE FOR RESIDUE LHG a 414
source : MC2

41) chain d
residue 231
type
sequence T
description BINDING SITE FOR RESIDUE LHG a 414
source : MC2

42) chain d
residue 232
type
sequence F
description BINDING SITE FOR RESIDUE LHG a 414
source : MC2

43) chain d
residue 232
type
sequence F
description BINDING SITE FOR RESIDUE SQD a 415
source : MC3

44) chain d
residue 233
type
sequence R
description BINDING SITE FOR RESIDUE SQD a 415
source : MC3

45) chain d
residue 266
type
sequence W
description BINDING SITE FOR RESIDUE LMG a 416
source : MC4

46) chain d
residue 270
type
sequence F
description BINDING SITE FOR RESIDUE LMG a 416
source : MC4

47) chain d
residue 273
type
sequence F
description BINDING SITE FOR RESIDUE LMG a 416
source : MC4

48) chain d
residue 154
type
sequence V
description BINDING SITE FOR RESIDUE CLA b 605
source : NC1

49) chain d
residue 281
type
sequence M
description BINDING SITE FOR RESIDUE CLA b 610
source : NC6

50) chain d
residue 120
type
sequence F
description BINDING SITE FOR RESIDUE CLA b 611
source : NC7

51) chain d
residue 123
type
sequence I
description BINDING SITE FOR RESIDUE CLA b 611
source : NC7

52) chain d
residue 126
type
sequence M
description BINDING SITE FOR RESIDUE CLA b 611
source : NC7

53) chain d
residue 127
type
sequence L
description BINDING SITE FOR RESIDUE CLA b 611
source : NC7

54) chain d
residue 130
type
sequence F
description BINDING SITE FOR RESIDUE CLA b 611
source : NC7

55) chain d
residue 87
type
sequence H
description BINDING SITE FOR RESIDUE DGD b 622
source : OC9

56) chain d
residue 162
type
sequence L
description BINDING SITE FOR RESIDUE DGD b 622
source : OC9

57) chain d
residue 139
type
sequence R
description BINDING SITE FOR RESIDUE LMG b 623
source : PC1

58) chain d
residue 141
type
sequence Y
description BINDING SITE FOR RESIDUE LMG b 623
source : PC1

59) chain d
residue 269
type
sequence F
description BINDING SITE FOR RESIDUE LMG b 623
source : PC1

60) chain d
residue 284
type
sequence I
description BINDING SITE FOR RESIDUE LMG b 624
source : PC2

61) chain d
residue 16
type
sequence D
description BINDING SITE FOR RESIDUE LMT b 626
source : PC4

62) chain d
residue 19
type
sequence D
description BINDING SITE FOR RESIDUE LMT b 626
source : PC4

63) chain d
residue 244
type
sequence Y
description BINDING SITE FOR RESIDUE BCT d 401
source : RC7

64) chain d
residue 264
type
sequence K
description BINDING SITE FOR RESIDUE BCT d 401
source : RC7

65) chain d
residue 268
type
sequence H
description BINDING SITE FOR RESIDUE BCT d 401
source : RC7

66) chain d
residue 45
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

67) chain d
residue 48
type
sequence W
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

68) chain d
residue 152
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

69) chain d
residue 153
type
sequence F
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

70) chain d
residue 156
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

71) chain d
residue 182
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

72) chain d
residue 185
type
sequence F
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

73) chain d
residue 186
type
sequence Q
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

74) chain d
residue 191
type
sequence W
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

75) chain d
residue 192
type
sequence T
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

76) chain d
residue 197
type
sequence H
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

77) chain d
residue 200
type
sequence G
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

78) chain d
residue 201
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

79) chain d
residue 204
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

80) chain d
residue 279
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

81) chain d
residue 282
type
sequence S
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

82) chain d
residue 283
type
sequence A
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

83) chain d
residue 286
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC8

84) chain d
residue 43
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

85) chain d
residue 89
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

86) chain d
residue 90
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

87) chain d
residue 91
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

88) chain d
residue 92
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

89) chain d
residue 93
type
sequence W
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

90) chain d
residue 104
type
sequence W
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

91) chain d
residue 112
type
sequence T
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

92) chain d
residue 113
type
sequence F
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

93) chain d
residue 117
type
sequence H
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

94) chain d
residue 120
type
sequence F
description BINDING SITE FOR RESIDUE CLA d 403
source : RC9

95) chain d
residue 199
type
sequence M
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

96) chain d
residue 209
type
sequence L
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

97) chain d
residue 213
type
sequence I
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

98) chain d
residue 214
type
sequence H
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

99) chain d
residue 217
type
sequence T
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

100) chain d
residue 253
type
sequence W
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

101) chain d
residue 259
type
sequence I
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

102) chain d
residue 260
type
sequence A
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

103) chain d
residue 261
type
sequence F
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

104) chain d
residue 267
type
sequence L
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

105) chain d
residue 273
type
sequence F
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

106) chain d
residue 274
type
sequence V
description BINDING SITE FOR RESIDUE PL9 d 404
source : SC1

107) chain d
residue 67
type
sequence Y
description BINDING SITE FOR RESIDUE LMG d 405
source : SC2

108) chain d
residue 70
type
sequence G
description BINDING SITE FOR RESIDUE LMG d 405
source : SC2

109) chain d
residue 71
type
sequence C
description BINDING SITE FOR RESIDUE LMG d 405
source : SC2

110) chain d
residue 72
type
sequence N
description BINDING SITE FOR RESIDUE LMG d 405
source : SC2

111) chain d
residue 73
type
sequence F
description BINDING SITE FOR RESIDUE LMG d 405
source : SC2

112) chain d
residue 257
type
sequence F
description BINDING SITE FOR RESIDUE LMG d 406
source : SC3

113) chain d
residue 259
type
sequence I
description BINDING SITE FOR RESIDUE LMG d 406
source : SC3

114) chain d
residue 260
type
sequence A
description BINDING SITE FOR RESIDUE LMG d 406
source : SC3

115) chain d
residue 261
type
sequence F
description BINDING SITE FOR RESIDUE LMG d 406
source : SC3

116) chain d
residue 262
type
sequence S
description BINDING SITE FOR RESIDUE LMG d 406
source : SC3

117) chain d
residue 263
type
sequence N
description BINDING SITE FOR RESIDUE LMG d 406
source : SC3

118) chain d
residue 266
type
sequence W
description BINDING SITE FOR RESIDUE LMG d 406
source : SC3

119) chain d
residue 23
type
sequence K
description BINDING SITE FOR RESIDUE SQD d 407
source : SC4

120) chain d
residue 32
type
sequence W
description BINDING SITE FOR RESIDUE SQD d 407
source : SC4

121) chain d
residue 134
type
sequence R
description BINDING SITE FOR RESIDUE SQD d 407
source : SC4

122) chain d
residue 135
type
sequence L
description BINDING SITE FOR RESIDUE SQD d 407
source : SC4

123) chain d
residue 100
type
sequence D
description BINDING SITE FOR RESIDUE DGD d 408
source : SC5

124) chain d
residue 101
type
sequence F
description BINDING SITE FOR RESIDUE DGD d 408
source : SC5

125) chain d
residue 102
type
sequence T
description BINDING SITE FOR RESIDUE DGD d 408
source : SC5

126) chain d
residue 317
type
sequence K
description BINDING SITE FOR RESIDUE CL d 409
source : SC6

127) chain d
residue 27
type
sequence F
description BINDING SITE FOR RESIDUE LMG e 101
source : SC7

128) chain d
residue 42
type
sequence Y
description BINDING SITE FOR RESIDUE BCR f 102
source : SC9

129) chain d
residue 46
type
sequence G
description BINDING SITE FOR RESIDUE BCR f 102
source : SC9

130) chain d
residue 49
type
sequence L
description BINDING SITE FOR RESIDUE BCR f 102
source : SC9

131) chain d
residue 50
type
sequence T
description BINDING SITE FOR RESIDUE BCR f 102
source : SC9

132) chain d
residue 21
type
sequence W
description BINDING SITE FOR RESIDUE SQD f 103
source : TC1

133) chain d
residue 24
type
sequence R
description BINDING SITE FOR RESIDUE SQD f 103
source : TC1

134) chain d
residue 26
type
sequence R
description BINDING SITE FOR RESIDUE SQD f 103
source : TC1

135) chain d
residue 92
type
sequence L
description BINDING SITE FOR RESIDUE LMT x 102
source : UC4

136) chain d
residue 93
type
sequence W
description BINDING SITE FOR RESIDUE LMT x 102
source : UC4

137) chain d
residue 99
type
sequence G
description BINDING SITE FOR RESIDUE LMT x 102
source : UC4

138) chain d
residue 132-140
type TOPO_DOM
sequence IARLVGVRP
description Lumenal
source Swiss-Prot : SWS_FT_FI1

139) chain d
residue 218-265
type TOPO_DOM
sequence VENTLFQDGEGASTFRAFNPTQAEETYSMVTANRFWSQIF
GIAFSNKR
description Lumenal
source Swiss-Prot : SWS_FT_FI1

140) chain d
residue 268
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:25006873, ECO:0000303|PubMed:25043005, ECO:0000303|DOI:10.1039/B406989G
source Swiss-Prot : SWS_FT_FI10

141) chain d
residue 266-288
type TRANSMEM
sequence WLHFFMLFVPVTGLWMSAIGVVG
description Helical => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI2

142) chain d
residue 32-53
type TRANSMEM
sequence WSGILLFPCAYLALGGWLTGTT
description Helical => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI2

143) chain d
residue 109-131
type TRANSMEM
sequence GLWTFIALHGAFGLIGFMLRQFE
description Helical => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI2

144) chain d
residue 141-160
type TRANSMEM
sequence YNAIAFSAPIAVFVSVFLIY
description Helical => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI2

145) chain d
residue 194-217
type TRANSMEM
sequence NPFHMMGVAGVLGGALLCAIHGAT
description Helical => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI2

146) chain d
residue 54-108
type TOPO_DOM
sequence FVTSWYTHGLASSYLEGCNFLTVAVSTPANSMGHSLLLLW
GPEAQGDFTRWCQLG
description Cytoplasmic => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI3

147) chain d
residue 161-193
type TOPO_DOM
sequence PLGQSSWFFAPSFGVAAIFRFLLFFQGFHNWTL
description Cytoplasmic => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI3

148) chain d
residue 289-352
type TOPO_DOM
sequence LALNLRSYDFISQEIRAAEDPEFETFYTKNLLLNEGIRAW
MAPQDQPHENFVFPEEVLPRGNAL
description Cytoplasmic => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI3

149) chain d
residue 142
type BINDING
sequence N
description BINDING => ECO:0000255|HAMAP-Rule:MF_01383, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:19219048, ECO:0000303|PubMed:20558739, ECO:0000303|PubMed:21367867, ECO:0000303|PubMed:25043005
source Swiss-Prot : SWS_FT_FI6

150) chain d
residue 197
type BINDING
sequence H
description axial binding residue => 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_FI7

151) chain d
residue 214
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

152) chain d
residue 261
type BINDING
sequence F
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:25006873, ECO:0000303|PubMed:25043005
source Swiss-Prot : SWS_FT_FI9


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