Structure of PDB 4xk8 Chain b

Receptor sequence
>4xk8b (length=733) Species: 3888 (Pisum sativum) [Search protein sequence]
ALRFPRFSQGIAQDPTTRRIWFGIATAHDFESHDDITEGRLYQNIFASHF
GQLAIIFLWTSGNLFHVAWQGNFEAWVQDPFHVRPIAHAIWDPHFGQPAV
EAFTRGGALGPVNNAYSGVYQWWYTIGLRTNEDLYTGAIFLLFLSFISLL
AGWLHLQPKWKPSVSWFKNAESRLNHHLSGLFGVSSLAWAGHLVHVAIPG
SRGEYVRWNNFLDVLPHPQGLGPLLTGQWNLYAQNPSSSNHLFGTTQGAG
TAILTILGGFHPQTQSLWLTDMAHHHLAIAFLFLIGGHMYRTNFGIGHSI
KYILEAHIPPGGRLGRGHKGLYDTINNSIHFQLGLALASLGVITSLVAQH
MYSLPAYAFIAQDFTTQAALYTHHQYIAGFIMTGAFAHGPIFFIRDYNPE
QNADNVLARMLEHKEAIISHLSWASLFLGFHTLGLYVHNDVMLAFGTPEK
QILIEPIFAQWIQSAHGKTTYGFDVLLSSTNGPALNAGRNIWLPGWLNAI
NENSNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKK
DFGYSFPCDGPGRGGTCDISAWDAFYLAVFWMLNTIGWVTFYWHWKHITL
WRGNVSQFNESSTYLMGWLRDYLWLNSSQLINGYNPFGMNSLSVWAWMFL
FGHLVWATGFMFLISWRGYWQELIETLAWAHERTPLANLIRWRDKPVALS
IVQARLVGLVHFSVGYIFTYAAFLIASTSGKFG
3D structure
PDB4xk8 Structural basis for energy transfer pathways in the plant PSI-LHCI supercomplex
Chainb
Resolution2.8 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 CLA b L620 W625 L619 W624
BS02 CLA b S426 L427 G430 F431 L434 I533 L578 F581 W582 S425 L426 G429 F430 L433 I532 L577 F580 W581
BS03 CLA b W648 L651 H654 L655 W657 A658 W647 L650 H653 L654 W656 A657
BS04 CLA b R684 T685 P686 R683 T684 P685
BS05 CLA b S420 S423 W424 L427 S419 S422 W423 L426
BS06 CLA b L678 A681 H682 T685 L677 A680 H681 T684
BS07 SF4 b C559 C568 W667 C558 C567 W666
BS08 CLA b V438 F581 W582 N585 W589 L616 W657 V437 F580 W581 N584 W588 L615 W656
BS09 CLA b Y437 W589 F592 L616 W619 F650 H654 W657 Y717 T720 Y721 F724 Y436 W588 F591 L615 W618 F649 H653 W656 Y716 T719 Y720 F723
BS10 CLA b A658 T659 F661 M662 I665 Y670 W671 A657 T658 F660 M661 I664 Y669 W670
BS11 CLA b F5 F8 A28 H29 H34 F4 F7 A27 H28 H33
BS12 CLA b H29 F31 Y43 I46 S49 H50 Q53 L54 R174 I330 H331 Q333 L334 A337 H28 F30 Y42 I45 S48 H49 Q52 L53 R173 I329 H330 Q332 L333 A336
BS13 CLA b Q53 W60 Q52 W59
BS14 CLA b L59 F66 H67 W70 Q71 L58 F65 H66 W69 Q70
BS15 CLA b W60 N64 A88 H89 N114 A116 Y117 S118 W646 W59 N63 A87 H88 N113 A115 Y116 S117 W645
BS16 CLA b I91 W92 D93 H95 F96 N114 V645 I90 W91 D92 H94 F95 N113 V644
BS17 CLA b F47 A152 L155 H156 W161 W167 F46 A151 L154 H155 W160 W166
BS18 CLA b S173 H177 T293 S172 H176 T292
BS19 CLA b F47 H50 F51 W123 W167 F168 S173 R174 H177 H178 L182 F183 F46 H49 F50 W122 W166 F167 S172 R173 H176 H177 L181 F182
BS20 CLA b D134 F141 L145 A189 W190 H193 H196 V197 R208 W209 F212 D133 F140 L144 A188 W189 H192 H195 V196 R207 W208 F211
BS21 CLA b L188 A189 G192 V195 H196 F212 L213 P217 G221 L222 L187 A188 G191 V194 H195 F211 L212 P216 G220 L221
BS22 CLA b W230 L255 I257 H275 L278 A279 F282 I492 W229 L254 I256 H274 L277 A278 F281 I491
BS23 CLA b I257 G259 L268 D272 H275 H276 A279 H351 I256 G258 L267 D271 H274 H275 A278 H350
BS24 CLA b I127 S186 S187 W190 M273 H276 H277 I280 V348 A357 Y358 I126 S185 S186 W189 M272 H275 H276 I279 V347 A356 Y357
BS25 CLA b L179 F284 M290 Y291 I304 L178 F283 M289 Y290 I303
BS26 CLA b H177 S180 H289 T293 F295 I297 H176 S179 H288 T292 F294 I296
BS27 CLA b I286 H289 M290 G298 H299 I285 H288 M289 G297 H298
BS28 CLA b H299 A307 H308 H298 A306 H307
BS29 CLA b L305 H308 L315 H319 V407 L304 H307 L314 H318 V406
BS30 CLA b A171 R174 L175 H178 F284 I301 Y323 L336 A337 S340 A170 R173 L174 H177 F283 I300 Y322 L335 A336 S339
BS31 CLA b S346 L347 Q350 Q376 M383 F387 L527 T531 S345 L346 Q349 Q375 M382 F386 L526 T530
BS32 CLA b S340 V343 L347 Q350 H351 S354 L355 F509 S339 V342 L346 Q349 H350 S353 L354 F508
BS33 CLA b W60 S118 A370 H374 Y377 I378 I718 A722 W59 S117 A369 H373 Y376 I377 I717 A721
BS34 CLA b T61 G119 W123 L341 T345 V348 M352 Y358 L371 H374 H375 I378 T60 G118 W122 L340 T344 V347 M351 Y357 L370 H373 H374 I377
BS35 CLA b H29 D30 L334 L338 G385 H389 I392 R396 Y555 W573 F576 F719 H28 D29 L333 L337 G384 H388 I391 R395 Y554 W572 F575 F718
BS36 CLA b R314 L315 V407 R410 M411 E413 H414 H421 R313 L314 V406 R409 M410 E412 H413 H420
BS37 CLA b H421 W424 H420 W423
BS38 CLA b W424 L427 F428 F431 H432 W423 L426 F427 F430 H431
BS39 CLA b G435 V438 H439 M443 K451 G434 V437 H438 M442 K450
BS40 CLA b W462 I463 H467 L477 L478 W497 W461 I462 H466 L476 L477 W496
BS41 CLA b L477 A485 A488 W493 L476 A484 A487 W492
BS42 CLA b Q350 A460 I463 Q464 F509 L510 H520 I523 V590 Y593 W594 Q349 A459 I462 Q463 F508 L509 H519 I522 V589 Y592 W593
BS43 CLA b F428 L429 P457 I458 F459 A460 F517 H520 H521 F427 L428 P456 I457 F458 A459 F516 H519 H520
BS44 CLA b L422 H528 L421 H527
BS45 CLA b T18 W22 H682 W693 R694 P697 T17 W21 H681 W692 R693 P696
BS46 CLA b W22 F652 L655 T659 F663 H712 W21 F651 L654 T658 F662 H711
BS47 CLA b H308 I309 P310 P311 L315 H307 I308 P309 P310 L314
BS48 PQN b M662 F663 S666 W667 R668 W671 A699 L700 A705 M661 F662 S665 W666 R667 W670 A698 L699 A704
BS49 CLA b F459 W462 F458 W461
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

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:4xk8, PDBe:4xk8, PDBj:4xk8
PDBsum4xk8
PubMed26023133
UniProtP05311|PSAB_PEA Photosystem I P700 chlorophyll a apoprotein A2 (Gene Name=psaB)

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