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

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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 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 : KC6

2) chain d
residue 214
type
sequence H
description BINDING SITE FOR RESIDUE FE2 a 403
source : KC7

3) chain d
residue 268
type
sequence H
description BINDING SITE FOR RESIDUE FE2 a 403
source : KC7

4) chain d
residue 182
type
sequence L
description BINDING SITE FOR RESIDUE CLA a 404
source : KC8

5) chain d
residue 205
type
sequence L
description BINDING SITE FOR RESIDUE CLA a 404
source : KC8

6) chain d
residue 198
type
sequence M
description BINDING SITE FOR RESIDUE CLA a 405
source : KC9

7) chain d
residue 201
type
sequence V
description BINDING SITE FOR RESIDUE CLA a 405
source : KC9

8) chain d
residue 157
type
sequence F
description BINDING SITE FOR RESIDUE CLA a 406
source : LC1

9) chain d
residue 175
type
sequence V
description BINDING SITE FOR RESIDUE CLA a 406
source : LC1

10) chain d
residue 178
type
sequence I
description BINDING SITE FOR RESIDUE CLA a 406
source : LC1

11) chain d
residue 179
type
sequence F
description BINDING SITE FOR RESIDUE CLA a 406
source : LC1

12) chain d
residue 181
type
sequence F
description BINDING SITE FOR RESIDUE CLA a 406
source : LC1

13) chain d
residue 182
type
sequence L
description BINDING SITE FOR RESIDUE CLA a 406
source : LC1

14) chain d
residue 205
type
sequence L
description BINDING SITE FOR RESIDUE PHO a 407
source : LC2

15) chain d
residue 208
type
sequence A
description BINDING SITE FOR RESIDUE PHO a 407
source : LC2

16) chain d
residue 209
type
sequence L
description BINDING SITE FOR RESIDUE PHO a 407
source : LC2

17) chain d
residue 213
type
sequence I
description BINDING SITE FOR RESIDUE PHO a 407
source : LC2

18) chain d
residue 253
type
sequence W
description BINDING SITE FOR RESIDUE PHO a 407
source : LC2

19) chain d
residue 257
type
sequence F
description BINDING SITE FOR RESIDUE PHO a 407
source : LC2

20) chain d
residue 41
type
sequence A
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

21) chain d
residue 48
type
sequence W
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

22) chain d
residue 118
type
sequence G
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

23) chain d
residue 122
type
sequence L
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

24) chain d
residue 125
type
sequence F
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

25) chain d
residue 129
type
sequence Q
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

26) chain d
residue 142
type
sequence N
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

27) chain d
residue 145
type
sequence A
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

28) chain d
residue 146
type
sequence F
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

29) chain d
residue 148
type
sequence A
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

30) chain d
residue 153
type
sequence F
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

31) chain d
residue 275
type
sequence P
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

32) chain d
residue 279
type
sequence L
description BINDING SITE FOR RESIDUE PHO a 408
source : LC3

33) chain d
residue 38
type
sequence F
description BINDING SITE FOR RESIDUE PL9 a 410
source : LC5

34) chain d
residue 41
type
sequence A
description BINDING SITE FOR RESIDUE PL9 a 410
source : LC5

35) chain d
residue 42
type
sequence Y
description BINDING SITE FOR RESIDUE PL9 a 410
source : LC5

36) chain d
residue 220
type
sequence N
description BINDING SITE FOR RESIDUE LHG a 414
source : LC9

37) chain d
residue 229
type
sequence A
description BINDING SITE FOR RESIDUE LHG a 414
source : LC9

38) chain d
residue 230
type
sequence S
description BINDING SITE FOR RESIDUE LHG a 414
source : LC9

39) chain d
residue 231
type
sequence T
description BINDING SITE FOR RESIDUE LHG a 414
source : LC9

40) chain d
residue 232
type
sequence F
description BINDING SITE FOR RESIDUE LHG a 414
source : LC9

41) chain d
residue 232
type
sequence F
description BINDING SITE FOR RESIDUE SQD a 415
source : MC1

42) chain d
residue 233
type
sequence R
description BINDING SITE FOR RESIDUE SQD a 415
source : MC1

43) chain d
residue 266
type
sequence W
description BINDING SITE FOR RESIDUE LMG a 416
source : MC2

44) chain d
residue 269
type
sequence F
description BINDING SITE FOR RESIDUE LMG a 416
source : MC2

45) chain d
residue 270
type
sequence F
description BINDING SITE FOR RESIDUE LMG a 416
source : MC2

46) chain d
residue 273
type
sequence F
description BINDING SITE FOR RESIDUE LMG a 416
source : MC2

47) chain d
residue 317
type
sequence K
description BINDING SITE FOR RESIDUE CL a 418
source : MC4

48) chain d
residue 281
type
sequence M
description BINDING SITE FOR RESIDUE CLA b 611
source : NC6

49) chain d
residue 120
type
sequence F
description BINDING SITE FOR RESIDUE CLA b 612
source : NC7

50) chain d
residue 123
type
sequence I
description BINDING SITE FOR RESIDUE CLA b 612
source : NC7

51) chain d
residue 126
type
sequence M
description BINDING SITE FOR RESIDUE CLA b 612
source : NC7

52) chain d
residue 127
type
sequence L
description BINDING SITE FOR RESIDUE CLA b 612
source : NC7

53) chain d
residue 130
type
sequence F
description BINDING SITE FOR RESIDUE CLA b 612
source : NC7

54) chain d
residue 86
type
sequence G
description BINDING SITE FOR RESIDUE DGD b 623
source : OC9

55) chain d
residue 87
type
sequence H
description BINDING SITE FOR RESIDUE DGD b 623
source : OC9

56) chain d
residue 162
type
sequence L
description BINDING SITE FOR RESIDUE DGD b 623
source : OC9

57) chain d
residue 139
type
sequence R
description BINDING SITE FOR RESIDUE LMG b 624
source : PC1

58) chain d
residue 141
type
sequence Y
description BINDING SITE FOR RESIDUE LMG b 624
source : PC1

59) chain d
residue 269
type
sequence F
description BINDING SITE FOR RESIDUE LMG b 624
source : PC1

60) chain d
residue 273
type
sequence F
description BINDING SITE FOR RESIDUE LMG b 624
source : PC1

61) chain d
residue 284
type
sequence I
description BINDING SITE FOR RESIDUE LMG b 625
source : PC2

62) chain d
residue 16
type
sequence D
description BINDING SITE FOR RESIDUE LMT b 627
source : PC4

63) chain d
residue 19
type
sequence D
description BINDING SITE FOR RESIDUE LMT b 627
source : PC4

64) chain d
residue 244
type
sequence Y
description BINDING SITE FOR RESIDUE BCT d 401
source : RC6

65) chain d
residue 264
type
sequence K
description BINDING SITE FOR RESIDUE BCT d 401
source : RC6

66) chain d
residue 268
type
sequence H
description BINDING SITE FOR RESIDUE BCT d 401
source : RC6

67) chain d
residue 45
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

68) chain d
residue 152
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

69) chain d
residue 153
type
sequence F
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

70) chain d
residue 155
type
sequence S
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

71) chain d
residue 156
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

72) chain d
residue 182
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

73) chain d
residue 185
type
sequence F
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

74) chain d
residue 186
type
sequence Q
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

75) chain d
residue 191
type
sequence W
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

76) chain d
residue 192
type
sequence T
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

77) chain d
residue 197
type
sequence H
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

78) chain d
residue 200
type
sequence G
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

79) chain d
residue 201
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

80) chain d
residue 204
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

81) chain d
residue 279
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

82) chain d
residue 282
type
sequence S
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

83) chain d
residue 283
type
sequence A
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

84) chain d
residue 286
type
sequence V
description BINDING SITE FOR RESIDUE CLA d 402
source : RC7

85) chain d
residue 43
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

86) chain d
residue 89
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

87) chain d
residue 90
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

88) chain d
residue 91
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

89) chain d
residue 92
type
sequence L
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

90) chain d
residue 93
type
sequence W
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

91) chain d
residue 112
type
sequence T
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

92) chain d
residue 113
type
sequence F
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

93) chain d
residue 117
type
sequence H
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

94) chain d
residue 120
type
sequence F
description BINDING SITE FOR RESIDUE CLA d 403
source : RC8

95) chain d
residue 199
type
sequence M
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

96) chain d
residue 213
type
sequence I
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

97) chain d
residue 214
type
sequence H
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

98) chain d
residue 217
type
sequence T
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

99) chain d
residue 253
type
sequence W
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

100) chain d
residue 259
type
sequence I
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

101) chain d
residue 260
type
sequence A
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

102) chain d
residue 261
type
sequence F
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

103) chain d
residue 267
type
sequence L
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

104) chain d
residue 273
type
sequence F
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

105) chain d
residue 274
type
sequence V
description BINDING SITE FOR RESIDUE PL9 d 404
source : RC9

106) chain d
residue 46
type
sequence G
description BINDING SITE FOR RESIDUE BCR d 405
source : SC1

107) chain d
residue 49
type
sequence L
description BINDING SITE FOR RESIDUE BCR d 405
source : SC1

108) chain d
residue 50
type
sequence T
description BINDING SITE FOR RESIDUE BCR d 405
source : SC1

109) chain d
residue 67
type
sequence Y
description BINDING SITE FOR RESIDUE LMG d 406
source : SC2

110) chain d
residue 70
type
sequence G
description BINDING SITE FOR RESIDUE LMG d 406
source : SC2

111) chain d
residue 72
type
sequence N
description BINDING SITE FOR RESIDUE LMG d 406
source : SC2

112) chain d
residue 73
type
sequence F
description BINDING SITE FOR RESIDUE LMG d 406
source : SC2

113) chain d
residue 257
type
sequence F
description BINDING SITE FOR RESIDUE LMG d 407
source : SC3

114) chain d
residue 259
type
sequence I
description BINDING SITE FOR RESIDUE LMG d 407
source : SC3

115) chain d
residue 260
type
sequence A
description BINDING SITE FOR RESIDUE LMG d 407
source : SC3

116) chain d
residue 261
type
sequence F
description BINDING SITE FOR RESIDUE LMG d 407
source : SC3

117) chain d
residue 262
type
sequence S
description BINDING SITE FOR RESIDUE LMG d 407
source : SC3

118) chain d
residue 263
type
sequence N
description BINDING SITE FOR RESIDUE LMG d 407
source : SC3

119) chain d
residue 266
type
sequence W
description BINDING SITE FOR RESIDUE LMG d 407
source : SC3

120) chain d
residue 23
type
sequence K
description BINDING SITE FOR RESIDUE SQD d 408
source : SC4

121) chain d
residue 32
type
sequence W
description BINDING SITE FOR RESIDUE SQD d 408
source : SC4

122) chain d
residue 134
type
sequence R
description BINDING SITE FOR RESIDUE SQD d 408
source : SC4

123) chain d
residue 135
type
sequence L
description BINDING SITE FOR RESIDUE SQD d 408
source : SC4

124) chain d
residue 100
type
sequence D
description BINDING SITE FOR RESIDUE DGD d 409
source : SC5

125) chain d
residue 101
type
sequence F
description BINDING SITE FOR RESIDUE DGD d 409
source : SC5

126) chain d
residue 102
type
sequence T
description BINDING SITE FOR RESIDUE DGD d 409
source : SC5

127) chain d
residue 92
type
sequence L
description BINDING SITE FOR RESIDUE LMT d 410
source : SC6

128) chain d
residue 93
type
sequence W
description BINDING SITE FOR RESIDUE LMT d 410
source : SC6

129) chain d
residue 99
type
sequence G
description BINDING SITE FOR RESIDUE LMT d 410
source : SC6

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

131) chain d
residue 21
type
sequence W
description BINDING SITE FOR RESIDUE SQD f 102
source : SC9

132) chain d
residue 24
type
sequence R
description BINDING SITE FOR RESIDUE SQD f 102
source : SC9

133) chain d
residue 26
type
sequence R
description BINDING SITE FOR RESIDUE SQD f 102
source : SC9

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

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

136) 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

137) 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

138) 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

139) 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

140) 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

141) 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

142) 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

143) 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

144) 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

145) 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

146) 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

147) 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

148) 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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