Structure of PDB 7fix Chain B2

Receptor sequence
>7fixB2 (length=740) Species: 197221 (Thermosynechococcus vestitus BP-1) [Search protein sequence]
ATKFPKFSQDLAQDPTTRRIWYAIAMAHDFESHDGMTEENLYQKIFASHF
GHLAIIFLWVSGSLFHVAWQGNFEQWVQDPVNTRPIAHAIWDPQFGKAAV
DAFTQAGASNPVDIAYSGVYHWWYTIGMRTNGDLYQGAIFLLILASLALF
AGWLHLQPKFRPSLSWFKNAESRLNHHLAGLFGVSSLAWAGHLIHVAIPE
SRGQHVGWDNFLSTMPHPAGLAPFFTGNWGVYAQNPDTASHVFGTAQGAG
TAILTFLGGFHPQTESLWLTDMAHHHLAIAVLFIVAGHMYRTQFGIGHSI
KEMMDAKDFFGTKVEGPFNMPHQGIYETYNNSLHFQLGWHLACLGVITSL
VAQHMYSLPPYAFIAQDHTTMAALYTHHQYIAGFLMVGAFAHGAIFLVRD
YDPAQNKGNVLDRVLQHKEAIISHLSWVSLFLGFHTLGLYVHNDVVVAFG
TPEKQILIEPVFAQFIQAAHGKLLYGFDTLLSNPDSIASTAWPNYGNVWL
PGWLDAINSGTNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGS
KLMPDKKDFGYAFPCDGPGRGGTCDISAWDAFYLAMFWMLNTIGWVTFYW
HWKHLGVWEGNVAQFNESSTYLMGWLRDYLWLNSSQLINGYNPFGTNNLS
VWAWMFLFGHLVWATGFMFLISWRGYWQELIETLVWAHERTPLANLVRWK
DKPVALSIVQARLVGLAHFSVGYILTYAAFLIASTAAKFG
3D structure
PDB7fix Structure of cyanobacterial photosystem I complexed with ferredoxin at 1.97 angstrom resolution.
ChainB2
Resolution1.97 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 1.97.1.12: photosystem I.
Interaction with ligand
Site
#
Ligand Ligand
chain
Binding residues on receptor
(original residue number in PDB)
Binding residues on receptor
(residue number reindexed from 1)
Binding affinity
BS01 peptide B2 F318 N319 V461 F465 F477 F318 N319 V461 F465 F477
BS02 CL0 B2 L626 W631 L626 W631
BS03 CLA B2 W654 L657 F658 H660 L661 W663 A664 W654 L657 F658 H660 L661 W663 A664
BS04 CLA B2 V445 F449 V445 F449
BS05 CLA B2 W686 T691 P692 W686 T691 P692
BS06 CLA B2 S423 S426 W427 S423 S426 W427
BS07 CLA B2 L684 A687 H688 L684 A687 H688
BS08 SF4 B2 C565 G567 C574 W673 C565 G567 C574 W673
BS09 CLA B2 A664 T665 F667 M668 Y676 W677 A664 T665 F667 M668 Y676 W677
BS10 CLA B2 S429 L430 G433 F434 T535 L538 I539 L584 F587 W588 S429 L430 G433 F434 T535 L538 I539 L584 F587 W588
BS11 CLA B2 V441 D444 W588 N591 W595 L622 W663 V441 D444 W588 N591 W595 L622 W663
BS12 CLA B2 F598 W625 L630 S634 F656 H660 W663 Y723 T726 Y727 F730 F598 W625 L630 S634 F656 H660 W663 Y723 T726 Y727 F730
BS13 CLA B2 I24 A27 H28 I24 A27 H28
BS14 CLA B2 H28 F30 Y42 I45 S48 H49 H52 R173 F182 L333 H334 L337 H340 L344 H28 F30 Y42 I45 S48 H49 H52 R173 F182 L333 H334 L337 H340 L344
BS15 CLA B2 H28 H52 I56 W59 H28 H52 I56 W59
BS16 CLA B2 L58 G62 F65 H66 W69 L58 G62 F65 H66 W69
BS17 CLA B2 S63 A87 H88 D113 Y116 S117 W652 S63 A87 H88 D113 Y116 S117 W652
BS18 CLA B2 I90 W91 D92 Q94 F95 D113 V651 W654 I90 W91 D92 Q94 F95 D113 V651 W654
BS19 CLA B2 F46 F50 A151 L154 H155 F160 W166 F46 F50 A151 L154 H155 F160 W166
BS20 CLA B2 W166 S172 H176 F294 W166 S172 H176 F294
BS21 CLA B2 F46 H49 F50 L53 W122 W166 S172 R173 H176 H177 L181 F182 F46 H49 F50 L53 W122 W166 S172 R173 H176 H177 L181 F182
BS22 CLA B2 I126 G127 M128 Q136 G137 F140 A188 W189 H192 H195 V196 G207 W208 F211 I126 G127 M128 Q136 G137 F140 A188 W189 H192 H195 V196 G207 W208 F211
BS23 CLA B2 I194 H195 P216 G220 I194 H195 P216 G220
BS24 CLA B2 F224 W229 L254 H274 L277 A278 V281 F224 W229 L254 H274 L277 A278 V281
BS25 CLA B2 F256 H274 H275 H354 F256 H274 H275 H354
BS26 CLA B2 W122 S185 S186 W189 M272 H275 H276 I279 V351 P360 Y361 W122 S185 S186 W189 M272 H275 H276 I279 V351 P360 Y361
BS27 CLA B2 L178 F283 A286 M289 Y290 M303 L178 F283 A286 M289 Y290 M303
BS28 CLA B2 N175 H176 A179 G180 V184 H288 T292 F294 N175 H176 A179 G180 V184 H288 T292 F294
BS29 CLA B2 V285 H288 M289 I296 G297 H298 V285 H288 M289 I296 G297 H298
BS30 CLA B2 H298 M303 F318 H298 M303 F318
BS31 CLA B2 M304 P317 F318 M320 H322 I325 V410 M304 P317 F318 M320 H322 I325 V410
BS32 CLA B2 A170 R173 L174 H177 F182 I300 Y326 Y329 W339 H340 C343 A170 R173 L174 H177 F182 I300 Y326 Y329 W339 H340 C343
BS33 CLA B2 V346 S349 Q353 M386 L533 T537 V346 S349 Q353 M386 L533 T537
BS34 CLA B2 W339 C343 V346 L350 H354 Y356 S357 W503 F515 W339 C343 V346 L350 H354 Y356 S357 W503 F515
BS35 CLA B2 W59 T376 H377 Y380 I381 I724 A728 W59 T376 H377 Y380 I381 I724 A728
BS36 CLA B2 W59 G118 T348 V351 M355 Y361 L374 H377 H378 W59 G118 T348 V351 M355 Y361 L374 H377 H378
BS37 CLA B2 A25 H28 L337 G388 H392 Y561 W579 F582 A25 H28 L337 G388 H392 Y561 W579 F582
BS38 CLA B2 R413 V414 H417 I421 H424 R413 V414 H417 I421 H424
BS39 CLA B2 H424 W427 H424 W427
BS40 CLA B2 W427 L430 F431 F434 H435 W427 L430 F431 F434 H435
BS41 CLA B2 F465 I466 H470 L481 W503 F465 I466 H470 L481 W503
BS42 CLA B2 L480 I487 A488 N494 W499 L480 I487 A488 N494 W499
BS43 CLA B2 Q353 Y375 A463 I466 Q467 H526 I529 V596 Y599 W600 Q353 Y375 A463 I466 Q467 H526 I529 V596 Y599 W600
BS44 CLA B2 F431 L432 P460 F462 A463 F523 H526 H527 F431 L432 P460 F462 A463 F523 H526 H527
BS45 CLA B2 L425 A530 L533 H534 L425 A530 L533 H534
BS46 CLA B2 T17 W21 H688 R698 W699 P703 T17 W21 H688 R698 W699 P703
BS47 CLA B2 F658 L661 T665 F669 A717 H718 F658 L661 T665 F669 A717 H718
BS48 PQN B2 M668 F669 S672 W673 R674 W677 A705 L706 A711 M668 F669 S672 W673 R674 W677 A705 L706 A711
BS49 CLA B2 G438 L439 V441 H442 V445 K454 G438 L439 V441 H442 V445 K454
BS50 CLA B2 P692 L693 P692 L693
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0009055 electron transfer activity
GO:0016168 chlorophyll binding
GO:0016491 oxidoreductase activity
GO:0046872 metal ion binding
GO:0051539 4 iron, 4 sulfur cluster binding
Biological Process
GO:0015979 photosynthesis
Cellular Component
GO:0009522 photosystem I
GO:0009579 thylakoid
GO:0016020 membrane
GO:0031676 plasma membrane-derived thylakoid membrane
GO:0042651 thylakoid membrane

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Molecular Function

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Biological Process

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Cellular Component
External links
PDB RCSB:7fix, PDBe:7fix, PDBj:7fix
PDBsum7fix
PubMed36097054
UniProtP0A407|PSAB_THEVB Photosystem I P700 chlorophyll a apoprotein A2 (Gene Name=psaB)

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