Structure of PDB 6k33 Chain aB

Receptor sequence
>6k33aB (length=739) Species: 32053 (Thermostichus vulcanus) [Search protein sequence]
ATKFPKFSQDLAQDPTTRRIWYAIAMAHDFESHDGMTEENLYQKIFASHF
GHLAIIFLWVSGSLFHVAWQGNFEQWVQDPVNTRPIAHAIWDPQFGKAAV
DAFTQAGASNPVDIAYSGVYHWWYTIGMRTNGDLYQGAIFLLILASLALF
AGWLHLQPKFRPSLSWFKNAESRLNHHLAGLFGVSSLAWAGHLIHVAIPE
SRGQHVGWDNFLSTMPHPAGLAPFFTGNWGVYAQNPDTASHVFGTAQGAG
TAILTFLGGFHPQTESLWLTDMAHHHLAIAVLFIVAGHMYRTQFGIGHSI
KEMMDAKDFFGTKVEGPFNMPHQGIYETYNNSLHFQLGWHLACLGVITSL
VAQHMYSLPPYAFIAQDHTTMAALYTHHQYIAGFLMVGAFAHGAIFLVRD
YDPAQNKGNVLDRVLQHKEAIISHLSWVSLFLGFHTLGLYVHNDVVVAFG
TPEKQILIEPVFAQFIQAAHGKLLYGFDTLLSNPDSIASTAWPNYGNVWL
PGWLDAINSGTNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGS
KLMPDKKDFGYAFPCDGPGRGGTCDISAWDAFYLAMFWMLNTIGWVTFYW
HWKHLGVWEGNVAQFNESSTYLMGWLRDYLWLNSSQLINGYNPFGTNNLS
VWAWMFLFGHLVWATGFMFLISWRGYWQELIETLVWAHERTPLANLVRWK
DKPVALSIVQARLVGLAHFSVGYILTYAAFLIASTAAKF
3D structure
PDB6k33 Structure of a cyanobacterial photosystem I surrounded by octadecameric IsiA antenna proteins.
ChainaB
Resolution2.74 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 aB F318 N319 V461 F462 F465 L480 F318 N319 V461 F462 F465 L480
BS02 CLA aB W654 L657 H660 L661 W663 A664 W654 L657 H660 L661 W663 A664
BS03 CLA aB S429 L430 G433 F434 L437 L531 L538 I539 L584 W588 S429 L430 G433 F434 L437 L531 L538 I539 L584 W588
BS04 SF4 aB C565 G567 C574 W673 C565 G567 C574 W673
BS05 CLA aB L684 H688 L684 H688
BS06 CLA aB Y440 A528 W595 F598 W625 L630 S634 F656 H660 W663 Y723 T726 Y727 F730 Y440 A528 W595 F598 W625 L630 S634 F656 H660 W663 Y723 T726 Y727 F730
BS07 CLA aB D444 W588 N591 W595 L622 D444 W588 N591 W595 L622
BS08 CLA aB A664 F667 M668 Y676 W677 A664 F667 M668 Y676 W677
BS09 CLA aB F7 A27 H28 I55 F7 A27 H28 I55
BS10 CLA aB H28 F30 Y42 I45 H49 H52 L333 H334 L337 H340 H28 F30 Y42 I45 H49 H52 L333 H334 L337 H340
BS11 CLA aB H28 H52 W59 H28 H52 W59
BS12 CLA aB L58 G62 F65 H66 W69 Q70 H88 L58 G62 F65 H66 W69 Q70 H88
BS13 CLA aB A87 H88 D113 A115 Y116 S117 W652 A87 H88 D113 A115 Y116 S117 W652
BS14 CLA aB I90 W91 D92 F95 D113 W654 I90 W91 D92 F95 D113 W654
BS15 CLA aB P93 Q94 P93 Q94
BS16 CLA aB F50 A151 L154 H155 F160 W166 F50 A151 L154 H155 F160 W166
BS17 CLA aB W166 S172 H176 F294 W166 S172 H176 F294
BS18 CLA aB F46 H49 F50 W122 W166 S172 R173 H176 H177 L181 F182 F46 H49 F50 W122 W166 S172 R173 H176 H177 L181 F182
BS19 CLA aB I126 G127 M128 Q136 F140 A188 W189 H192 V196 G207 W208 F211 I126 G127 M128 Q136 F140 A188 W189 H192 V196 G207 W208 F211
BS20 CLA aB H195 L212 T214 M215 P216 G220 L221 L277 H195 L212 T214 M215 P216 G220 L221 L277
BS21 CLA aB G227 W229 L254 H274 L277 A278 V281 V498 G227 W229 L254 H274 L277 A278 V281 V498
BS22 CLA aB F256 G258 G259 L267 D271 H274 H275 I279 H354 L358 W503 F256 G258 G259 L267 D271 H274 H275 I279 H354 L358 W503
BS23 CLA aB S185 S186 W189 M272 H275 H276 I279 P360 Y361 S185 S186 W189 M272 H275 H276 I279 P360 Y361
BS24 CLA aB L174 L178 L282 F283 A286 M289 Y290 I300 M303 L174 L178 L282 F283 A286 M289 Y290 I300 M303
BS25 CLA aB H176 V184 H288 T292 H176 V184 H288 T292
BS26 CLA aB V285 H288 I296 G297 H298 V285 H288 I296 G297 H298
BS27 CLA aB H298 E302 M303 A306 D308 F309 F310 F318 H298 E302 M303 A306 D308 F309 F310 F318
BS28 CLA aB M304 P317 M320 H322 I325 V410 M304 P317 M320 H322 I325 V410
BS29 CLA aB A170 R173 L174 H177 Y326 Y329 W339 H340 C343 I347 A170 R173 L174 H177 Y326 Y329 W339 H340 C343 I347
BS30 CLA aB V346 S349 Q353 Q379 M386 L533 T537 V346 S349 Q353 Q379 M386 L533 T537
BS31 CLA aB W339 C343 V346 L350 H354 S357 F515 W339 C343 V346 L350 H354 S357 F515
BS32 CLA aB W59 Y116 S117 A373 T376 H377 Y380 I381 I724 A728 W59 Y116 S117 A373 T376 H377 Y380 I381 I724 A728
BS33 CLA aB W59 V60 G118 W122 L344 T348 V351 M355 Y361 L374 H377 H378 W59 V60 G118 W122 L344 T348 V351 M355 Y361 L374 H377 H378
BS34 CLA aB A25 H28 D29 L337 F384 G388 H392 I395 R399 Y561 W579 F582 A25 H28 D29 L337 F384 G388 H392 I395 R399 Y561 W579 F582
BS35 CLA aB R413 V414 H417 H424 R413 V414 H417 H424
BS36 CLA aB H424 W427 H424 W427
BS37 CLA aB W427 F431 F434 H435 W427 F431 F434 H435
BS38 CLA aB G438 H442 V445 V446 K454 I456 G438 H442 V445 V446 K454 I456
BS39 CLA aB H470 L481 W503 H470 L481 W503
BS40 CLA aB F462 A463 I466 Q467 F515 L516 I518 H526 V596 Y599 W600 K603 F462 A463 I466 Q467 F515 L516 I518 H526 V596 Y599 W600 K603
BS41 CLA aB F431 P460 F462 A463 F523 H526 H527 F431 P460 F462 A463 F523 H526 H527
BS42 CLA aB L425 H534 L425 H534
BS43 CLA aB T17 W21 L684 V685 H688 R698 W699 D701 P703 T17 W21 L684 V685 H688 R698 W699 D701 P703
BS44 CLA aB F658 L661 T665 F669 V714 A717 H718 F658 L661 T665 F669 V714 A717 H718
BS45 CLA aB I487 A488 N494 G496 N497 I487 A488 N494 G496 N497
BS46 CLA aB P493 N494 P493 N494
BS47 PQN aB W21 M668 F669 S672 W673 R674 W677 A705 L706 A711 W21 M668 F669 S672 W673 R674 W677 A705 L706 A711
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

View graph for
Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:6k33, PDBe:6k33, PDBj:6k33
PDBsum6k33
PubMed32393811
UniProtP0A409|PSAB_THEVL Photosystem I P700 chlorophyll a apoprotein A2 (Gene Name=psaB)

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