Structure of PDB 7r3k Chain B

Receptor sequence
>7r3kB (length=733) Species: 3055 (Chlamydomonas reinhardtii) [Search protein sequence]
ATKLFPKFSQGLAQDPTTRRIWYGLAMAHDFESHDGMTEENLYQKIFASH
FGQLSIIFLWTSGNLFHVAWQGNFEQWVTDPVHIRPIAHAIWDPHFGQPA
VEAFTRGGASGPVNISTSGVYQWWYTIGMRTNQDLYVGSVFLALVSAIFL
FAGWLHLQPNFQPSLSWFKDAESRLNHHLSGLFGVSSLAWTGHLVHVAIP
ESRGQHVGWDNFLSVLPHPQGLTPFFTGNWAAYAQSPDTASHVFGTAQGS
GQAILTFLGGFHPQTQSLWLTDMAHHHLAIAVIFIVAGHMYRTNFGIGHR
MQAILEAHTPPSGSLGAGHKGLFDTVNNSLHFQLGLALASVGTITSLVAQ
HMYSLPPYAFQAIDFTTQAALYTHHQYIAGFIMCGAFAHGAIFFIRDYDP
EQNKGNVLARMLDHKEALISHLSWVSLFLGFHTLGLYVHNDVMQAFGTPE
KQILIEPVFAQWIQAAHGKALYGFDFLLSSKTSAAFANGQSLWLPGWLDA
INNNQNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDK
KDFGYSFPCDGPGRGGTCDISAYDAFYLAVFWMLNTIGWVTFYWHWKHLT
LWQGNVAQFDESSTYLMGWLRDYLWLNSSQLINGYNPFGMNSLSVWAWTF
LFGHLIYATGFMFLISWRGYWQELIETLVWAHEKTPLANLVYWKDKPVAL
SIVQARLVGLAHFSVGYIFTYAAFLIASTSGRF
3D structure
PDB7r3k Structure of Photosystem I Supercomplex Isolated from a Chlamydomonas reinhardtii Cytochrome b6f Temperature-Sensitive Mutant.
ChainB
Resolution2.52 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 CL0 B L621 W626 L620 W625
BS02 CLA B V439 L526 F582 W583 N586 W590 L617 V438 L525 F581 W582 N585 W589 L616
BS03 CLA B K685 T686 P687 K684 T685 P686
BS04 CLA B S421 S424 W425 L428 S420 S423 W424 L427
BS05 SF4 B C560 G562 C569 W668 C559 G561 C568 W667
BS06 CLA B L679 H683 V692 L678 H682 V691
BS07 CLA B S427 L428 G431 F432 I534 F582 W583 S426 L427 G430 F431 I533 F581 W582
BS08 CLA B Y438 W590 L617 W620 L625 F651 H655 Y658 Y718 T721 Y722 F725 Y437 W589 L616 W619 L624 F650 H654 Y657 Y717 T720 Y721 F724
BS09 CLA B W649 L652 F653 H655 L656 A659 W648 L651 F652 H654 L655 A658
BS10 CLA B A659 T660 F662 M663 Y671 W672 A658 T659 F661 M662 Y670 W671
BS11 CLA B A29 H30 H35 S50 I57 A28 H29 H34 S49 I56
BS12 CLA B H30 F32 I47 S50 H51 Q54 R175 F184 L331 Q334 L335 A338 H29 F31 I46 S49 H50 Q53 R174 F183 L330 Q333 L334 A337
BS13 CLA B H30 Q54 I58 W61 F382 H29 Q53 I57 W60 F381
BS14 CLA B W61 N65 A89 H90 N115 S117 S119 V646 W647 W60 N64 A88 H89 N114 S116 S118 V645 W646
BS15 CLA B I92 W93 D94 H96 F97 N115 V646 W649 I91 W92 D93 H95 F96 N114 V645 W648
BS16 CLA B P95 H96 P94 H95
BS17 CLA B F48 F52 I149 A153 H157 F162 W168 F47 F51 I148 A152 H156 F161 W167
BS18 CLA B W168 H178 T294 N295 F296 W167 H177 T293 N294 F295
BS19 CLA B F48 H51 F52 W124 W168 R175 H178 H179 L183 F184 F47 H50 F51 W123 W167 R174 H177 H178 L182 F183
BS20 CLA B M130 D135 F142 A190 W191 H194 H197 V198 G209 W210 F213 M129 D134 F141 A189 W190 H193 H196 V197 G208 W209 F212
BS21 CLA B L189 A190 T192 H197 L217 P218 G222 L223 F226 L188 A189 T191 H196 L216 P217 G221 L222 F225
BS22 CLA B W231 A232 F258 H276 L279 A280 V283 I284 V287 L493 W230 A231 F257 H275 L278 A279 V282 I283 V286 L492
BS23 CLA B F258 L269 D273 H276 H277 H352 W494 W498 F257 L268 D272 H275 H276 H351 W493 W497
BS24 CLA B S187 S188 W191 H277 H278 I281 I345 P358 Y359 S186 S187 W190 H276 H277 I280 I344 P357 Y358
BS25 CLA B L180 F184 A288 M291 Y292 I305 L179 F183 A287 M290 Y291 I304
BS26 CLA B H178 S181 H290 T294 F296 I298 H177 S180 H289 T293 F295 I297
BS27 CLA B V287 H290 M291 I298 G299 H300 V286 H289 M290 I297 G298 H299
BS28 CLA B H300 H309 H299 H308
BS29 CLA B L306 H320 V408 M412 L305 H319 V407 M411
BS30 CLA B A172 R175 L176 H179 F324 V327 L337 A338 S341 I345 A171 R174 L175 H178 F323 V326 L336 A337 S340 I344
BS31 CLA B S347 L348 Q351 M384 F388 L528 T532 S346 L347 Q350 M383 F387 L527 T531
BS32 CLA B T344 L348 H352 S355 L356 F510 T343 L347 H351 S354 L355 F509
BS33 CLA B W61 T118 S119 A371 T374 H375 Y378 I719 A723 W60 T117 S118 A370 T373 H374 Y377 I718 A722
BS34 CLA B W61 T62 W124 T346 V349 M353 Y359 H375 H376 I379 W60 T61 W123 T345 V348 M352 Y358 H374 H375 I378
BS35 CLA B A27 H30 D31 L335 F382 G386 H390 I393 Y556 Y574 F577 V716 F720 A26 H29 D30 L334 F381 G385 H389 I392 Y555 Y573 F576 V715 F719
BS36 CLA B S315 L316 V408 R411 M412 H415 L419 H422 S314 L315 V407 R410 M411 H414 L418 H421
BS37 CLA B H422 W425 H421 W424
BS38 CLA B G436 V439 H440 M444 K452 I454 G435 V438 H439 M443 K451 I453
BS39 CLA B W463 I464 H468 L478 L479 W494 W462 I463 H467 L477 L478 W493
BS40 CLA B L478 A486 N489 W494 L477 A485 N488 W493
BS41 CLA B Q351 Y373 A461 I464 Q465 F510 L511 H521 I524 V591 Y594 W595 K598 Q350 Y372 A460 I463 Q464 F509 L510 H520 I523 V590 Y593 W594 K597
BS42 CLA B F429 L430 P458 V459 F460 A461 F518 H521 H522 F428 L429 P457 V458 F459 A460 F517 H520 H521
BS43 CLA B L423 V426 A525 L528 H529 L422 V425 A524 L527 H528
BS44 CLA B W23 V680 H683 Y693 W694 K695 P698 W22 V679 H682 Y692 W693 K694 P697
BS45 CLA B F653 I657 F664 V709 H713 F652 I656 F663 V708 H712
BS46 CLA B H309 T310 P311 P312 S315 H308 T309 P310 P311 S314
BS47 PQN B W23 M663 F664 S667 W668 R669 W672 A700 L701 A706 W22 M662 F663 S666 W667 R668 W671 A699 L700 A705
BS48 CA B E202 H207 E201 H206
BS49 CLA B F460 W463 F459 W462
BS50 CLA B W425 F429 H433 W424 F428 H432
BS51 CLA B G64 F67 H68 W71 Q72 G63 F66 H67 W70 Q71
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:0009507 chloroplast
GO:0009522 photosystem I
GO:0009535 chloroplast thylakoid membrane
GO:0009579 thylakoid
GO:0016020 membrane

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:7r3k, PDBe:7r3k, PDBj:7r3k
PDBsum7r3k
PubMed36979472
UniProtP09144|PSAB_CHLRE Photosystem I P700 chlorophyll a apoprotein A2 (Gene Name=psaB)

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