eF-site ID 2axt-D
PDB Code 2axt
Chain D

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Title Crystal Structure of Photosystem II from Thermosynechococcus elongatus
Classification ELECTRON TRANSPORT
Compound Photosystem Q(B) protein
Source ORGANISM_SCIENTIFIC: Thermosynechococcus elongatus;
Sequence D:  GWFDILDDWLKRDRFVFVGWSGILLFPCAYLALGGWLTGT
TFVTSWYTHGLASSYLEGCNFLTVAVSTPANSMGHSLLLL
WGPEAQGDFTRWCQLGGLWTFIALHGAFGLIGFMLRQFEI
ARLVGVRPYNAIAFSAPIAVFVSVFLIYPLGQSSWFFAPS
FGVAAIFRFLLFFQGFHNWTLNPFHMMGVAGVLGGALLCA
IHGATVENTLFQDGEGASTFRAFNPTQAEETYSMVTANRF
WSQIFGIAFSNKRWLHFFMLFVPVTGLWMSAIGVVGLALN
LRSYDFISQEIRAAEDPEFETFYTKNLLLNEGIRAWMAPQ
DQPHENFVFPEEVLPRGNAL
Description (1)  Photosystem


Functional site

1) chain D
residue 214
type
sequence H
description BINDING SITE FOR RESIDUE FE2 A 557
source : AC2

2) chain D
residue 268
type
sequence H
description BINDING SITE FOR RESIDUE FE2 A 557
source : AC2

3) chain D
residue 214
type
sequence H
description BINDING SITE FOR RESIDUE BCT D 353
source : AC3

4) chain D
residue 244
type
sequence Y
description BINDING SITE FOR RESIDUE BCT D 353
source : AC3

5) chain D
residue 264
type
sequence K
description BINDING SITE FOR RESIDUE BCT D 353
source : AC3

6) chain D
residue 268
type
sequence H
description BINDING SITE FOR RESIDUE BCT D 353
source : AC3

7) chain D
residue 152
type
sequence V
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

8) chain D
residue 156
type
sequence V
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

9) chain D
residue 181
type
sequence F
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

10) chain D
residue 182
type
sequence L
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

11) chain D
residue 185
type
sequence F
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

12) chain D
residue 186
type
sequence Q
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

13) chain D
residue 191
type
sequence W
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

14) chain D
residue 192
type
sequence T
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

15) chain D
residue 197
type
sequence H
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

16) chain D
residue 200
type
sequence G
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

17) chain D
residue 201
type
sequence V
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

18) chain D
residue 204
type
sequence V
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

19) chain D
residue 279
type
sequence L
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

20) chain D
residue 282
type
sequence S
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

21) chain D
residue 283
type
sequence A
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

22) chain D
residue 286
type
sequence V
description BINDING SITE FOR RESIDUE CLA D 354
source : AC8

23) chain D
residue 198
type
sequence M
description BINDING SITE FOR RESIDUE CLA A 559
source : AC9

24) chain D
residue 201
type
sequence V
description BINDING SITE FOR RESIDUE CLA A 559
source : AC9

25) chain D
residue 202
type
sequence A
description BINDING SITE FOR RESIDUE CLA A 559
source : AC9

26) chain D
residue 206
type
sequence G
description BINDING SITE FOR RESIDUE CLA A 559
source : AC9

27) chain D
residue 209
type
sequence L
description BINDING SITE FOR RESIDUE CLA A 559
source : AC9

28) chain D
residue 157
type
sequence F
description BINDING SITE FOR RESIDUE CLA A 560
source : BC1

29) chain D
residue 175
type
sequence V
description BINDING SITE FOR RESIDUE CLA A 560
source : BC1

30) chain D
residue 179
type
sequence F
description BINDING SITE FOR RESIDUE CLA A 560
source : BC1

31) chain D
residue 182
type
sequence L
description BINDING SITE FOR RESIDUE CLA A 560
source : BC1

32) chain D
residue 205
type
sequence L
description BINDING SITE FOR RESIDUE PHO A 561
source : BC2

33) chain D
residue 208
type
sequence A
description BINDING SITE FOR RESIDUE PHO A 561
source : BC2

34) chain D
residue 209
type
sequence L
description BINDING SITE FOR RESIDUE PHO A 561
source : BC2

35) chain D
residue 213
type
sequence I
description BINDING SITE FOR RESIDUE PHO A 561
source : BC2

36) chain D
residue 253
type
sequence W
description BINDING SITE FOR RESIDUE PHO A 561
source : BC2

37) chain D
residue 257
type
sequence F
description BINDING SITE FOR RESIDUE PHO A 561
source : BC2

38) chain D
residue 37
type
sequence L
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

39) chain D
residue 41
type
sequence A
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

40) chain D
residue 45
type
sequence L
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

41) chain D
residue 48
type
sequence W
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

42) chain D
residue 122
type
sequence L
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

43) chain D
residue 125
type
sequence F
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

44) chain D
residue 129
type
sequence Q
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

45) chain D
residue 142
type
sequence N
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

46) chain D
residue 146
type
sequence F
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

47) chain D
residue 149
type
sequence P
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

48) chain D
residue 153
type
sequence F
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

49) chain D
residue 275
type
sequence P
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

50) chain D
residue 279
type
sequence L
description BINDING SITE FOR RESIDUE PHO A 562
source : BC3

51) chain D
residue 36
type
sequence L
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

52) chain D
residue 39
type
sequence P
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

53) chain D
residue 43
type
sequence L
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

54) chain D
residue 89
type
sequence L
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

55) chain D
residue 90
type
sequence L
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

56) chain D
residue 91
type
sequence L
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

57) chain D
residue 92
type
sequence L
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

58) chain D
residue 93
type
sequence W
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

59) chain D
residue 112
type
sequence T
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

60) chain D
residue 113
type
sequence F
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

61) chain D
residue 117
type
sequence H
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

62) chain D
residue 120
type
sequence F
description BINDING SITE FOR RESIDUE CLA D 355
source : BC5

63) chain D
residue 158
type
sequence L
description BINDING SITE FOR RESIDUE CLA B 512
source : BC7

64) chain D
residue 159
type
sequence I
description BINDING SITE FOR RESIDUE CLA B 512
source : BC7

65) chain D
residue 196
type
sequence F
description BINDING SITE FOR RESIDUE CLA B 517
source : CC3

66) chain D
residue 281
type
sequence M
description BINDING SITE FOR RESIDUE CLA B 517
source : CC3

67) chain D
residue 123
type
sequence I
description BINDING SITE FOR RESIDUE CLA B 518
source : CC4

68) chain D
residue 126
type
sequence M
description BINDING SITE FOR RESIDUE CLA B 518
source : CC4

69) chain D
residue 127
type
sequence L
description BINDING SITE FOR RESIDUE CLA B 518
source : CC4

70) chain D
residue 130
type
sequence F
description BINDING SITE FOR RESIDUE CLA B 518
source : CC4

71) chain D
residue 209
type
sequence L
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

72) chain D
residue 210
type
sequence L
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

73) chain D
residue 214
type
sequence H
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

74) chain D
residue 217
type
sequence T
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

75) chain D
residue 250
type
sequence N
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

76) chain D
residue 253
type
sequence W
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

77) chain D
residue 260
type
sequence A
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

78) chain D
residue 261
type
sequence F
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

79) chain D
residue 267
type
sequence L
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

80) chain D
residue 270
type
sequence F
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

81) chain D
residue 274
type
sequence V
description BINDING SITE FOR RESIDUE PQ9 D 356
source : FC1

82) chain D
residue 42
type
sequence Y
description BINDING SITE FOR RESIDUE BCR D 357
source : GC1

83) chain D
residue 43
type
sequence L
description BINDING SITE FOR RESIDUE BCR D 357
source : GC1

84) chain D
residue 46
type
sequence G
description BINDING SITE FOR RESIDUE BCR D 357
source : GC1

85) chain D
residue 47
type
sequence G
description BINDING SITE FOR RESIDUE BCR D 357
source : GC1

86) chain D
residue 49
type
sequence L
description BINDING SITE FOR RESIDUE BCR D 357
source : GC1

87) chain D
residue 50
type
sequence T
description BINDING SITE FOR RESIDUE BCR D 357
source : GC1

88) chain D
residue 113
type
sequence F
description BINDING SITE FOR RESIDUE BCR D 357
source : GC1

89) chain D
residue 219
type
sequence E
description BINDING SITE FOR RESIDUE LHG A 567
source : GC8

90) chain D
residue 220
type
sequence N
description BINDING SITE FOR RESIDUE LHG A 567
source : GC8

91) chain D
residue 229
type
sequence A
description BINDING SITE FOR RESIDUE LHG A 567
source : GC8

92) chain D
residue 230
type
sequence S
description BINDING SITE FOR RESIDUE LHG A 567
source : GC8

93) chain D
residue 231
type
sequence T
description BINDING SITE FOR RESIDUE LHG A 567
source : GC8

94) chain D
residue 232
type
sequence F
description BINDING SITE FOR RESIDUE LHG A 567
source : GC8

95) chain D
residue 230
type
sequence S
description BINDING SITE FOR RESIDUE SQD A 568
source : GC9

96) chain D
residue 232
type
sequence F
description BINDING SITE FOR RESIDUE SQD A 568
source : GC9

97) chain D
residue 233
type
sequence R
description BINDING SITE FOR RESIDUE SQD A 568
source : GC9

98) chain D
residue 67
type
sequence Y
description BINDING SITE FOR RESIDUE MGE D 358
source : HC3

99) chain D
residue 70
type
sequence G
description BINDING SITE FOR RESIDUE MGE D 358
source : HC3

100) chain D
residue 71
type
sequence C
description BINDING SITE FOR RESIDUE MGE D 358
source : HC3

101) chain D
residue 87
type
sequence H
description BINDING SITE FOR RESIDUE DGD H 208
source : HC4

102) chain D
residue 123
type
sequence I
description BINDING SITE FOR RESIDUE DGD H 208
source : HC4

103) chain D
residue 162
type
sequence L
description BINDING SITE FOR RESIDUE DGD H 208
source : HC4

104) chain D
residue 165
type
sequence S
description BINDING SITE FOR RESIDUE DGD H 208
source : HC4

105) chain D
residue 139
type
sequence R
description BINDING SITE FOR RESIDUE MGE D 359
source : HC5

106) chain D
residue 141
type
sequence Y
description BINDING SITE FOR RESIDUE MGE D 359
source : HC5

107) chain D
residue 269
type
sequence F
description BINDING SITE FOR RESIDUE MGE D 359
source : HC5

108) chain D
residue 273
type
sequence F
description BINDING SITE FOR RESIDUE MGE D 359
source : HC5

109) chain D
residue 266
type
sequence W
description BINDING SITE FOR RESIDUE MGE L 210
source : HC6

110) chain D
residue 270
type
sequence F
description BINDING SITE FOR RESIDUE MGE L 210
source : HC6

111) chain D
residue 273
type
sequence F
description BINDING SITE FOR RESIDUE MGE L 210
source : HC6

112) chain D
residue 259
type
sequence I
description BINDING SITE FOR RESIDUE MGE D 360
source : HC7

113) chain D
residue 260
type
sequence A
description BINDING SITE FOR RESIDUE MGE D 360
source : HC7

114) chain D
residue 261
type
sequence F
description BINDING SITE FOR RESIDUE MGE D 360
source : HC7

115) chain D
residue 262
type
sequence S
description BINDING SITE FOR RESIDUE MGE D 360
source : HC7

116) chain D
residue 263
type
sequence N
description BINDING SITE FOR RESIDUE MGE D 360
source : HC7

117) chain D
residue 266
type
sequence W
description BINDING SITE FOR RESIDUE MGE D 360
source : HC7

118) chain D
residue 270
type
sequence F
description BINDING SITE FOR RESIDUE MGE D 360
source : HC7

119) chain D
residue 304
type
sequence R
description BINDING SITE FOR RESIDUE LMT A 569
source : IC2

120) chain D
residue 129
type BINDING
sequence Q
description BINDING => ECO:0000255|HAMAP-Rule:MF_01383, ECO:0000269|PubMed:16355230, ECO:0000303|PubMed:14764885, ECO:0000303|PubMed:25043005
source Swiss-Prot : SWS_FT_FI5

121) 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

122) 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

123) 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

124) 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

125) chain D
residue 117
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|DOI:10.1039/B406989G
source Swiss-Prot : SWS_FT_FI4

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

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

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

129) 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

130) chain D
residue 132-140
type TOPO_DOM
sequence IARLVGVRP
description Cytoplasmic => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI1

131) chain D
residue 218-265
type TOPO_DOM
sequence VENTLFQDGEGASTFRAFNPTQAEETYSMVTANRFWSQIF
GIAFSNKR
description Cytoplasmic => ECO:0000269|PubMed:33846594, ECO:0007744|PDB:7NHQ
source Swiss-Prot : SWS_FT_FI1

132) 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

133) 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

134) 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

135) 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

136) 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

137) chain D
residue 190-216
type prosite
sequence NWTLNPFHMMGVAGVLGGALLCAIHGA
description REACTION_CENTER Photosynthetic reaction center proteins signature. NilmhPfHqlGvagvfggalfcAmHGS
source prosite : PS00244


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