Structure of PDB 7y7a Chain B7

Receptor sequence
>7y7aB7 (length=732) Species: 35688 (Porphyridium purpureum) [Search protein sequence]
TKFPKFSQALAQDPSTRRIWFGIATSHDFESHDGMTEENLYQKIFASHFG
HLAIIFLWTSGNLFHVAWQGNFEQWVLNPLKTKPIAHAIWDPHFGQPAIK
AFTKGGVTYPVDIAYSGVYHWWYTIGMRTNNDLYSGALFLLVLSAVFLFA
GWLHLQPRFKPSLSWFKNNESRLNHHLSGLFGVSSLAWTGHMIHVAIPES
RGQHIGWDNFTTVRPHPAGLEPFFSGNWSVYAQNPDTPNHIFGTSEGAGT
AILTFLGGFHPQTQSLWLTDMAHHHLAIAVVFIVAGHMYRTNWGIGHSLK
EILEAHEPPSGRLGKGHKGLFETITNSLHMQLGLALASLGVITSLVAQHM
YALPPYAFMAKDFTTQAALYTHHQYIAGFLMVGAFAHGAIFFVRDYDAEQ
NEGNVLARMLEHKEAIISHLSWVSLFLGFHTLGLYIHNDVVVAFGTPEKQ
ILVEPVFAQWIQAASGKALYGFDVLLSSSNSVATQAGGNIWLPGWLEAIN
SGKNSLFLTIGPGDFLVHHAIALGLHTTALILIKGALDARGSKLMPDKKD
FGYSFPCDGPGRGGTCDISAWDAFYLSVFWMLNTIGWVTFYWHWKHVTIW
QGNVAQFNESSTYLMGWLRDYLWLNSSPLINGYNPYGMNSLSVWAWMFLF
GHLIWATGFMFLISWRGYWQELIETLAWAHERTPLANLVRWKDKPVALSI
VQARLVGLAHFSVGYILTYAAFVIASTTGKFG
3D structure
PDB7y7a In situ structure of the red algal phycobilisome-PSII-PSI-LHC megacomplex.
ChainB7
Resolution4.3 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 B7 F51 V148 A152 L155 H156 W167 F49 V146 A150 L153 H154 W165
BS02 CLA B7 L624 W625 L622 W623
BS03 CLA B7 L678 H682 L676 H680
BS04 CLA B7 S426 L427 G430 F431 L434 I533 L578 F581 W582 S424 L425 G428 F429 L432 I531 L576 F579 W580
BS05 CLA B7 W648 L651 F652 L655 A658 W646 L649 F650 L653 A656
BS06 CLA B7 S423 W424 L427 S421 W422 L425
BS07 SF4 B7 C559 G561 C568 C557 G559 C566
BS08 CLA B7 A658 F661 M662 I665 Y670 W671 A656 F659 M660 I663 Y668 W669
BS09 CLA B7 I438 D441 W582 N585 W589 L616 I436 D439 W580 N583 W587 L614
BS10 CLA B7 Y437 A522 W589 F592 W619 L624 F650 H654 W657 Y717 T720 Y721 F724 Y435 A520 W587 F590 W617 L622 F648 H652 W655 Y715 T718 Y719 F722
BS11 CLA B7 H29 F31 Y43 I46 S49 H50 H53 L54 R174 L330 Q333 L334 L341 H27 F29 Y41 I44 S47 H48 H51 L52 R172 L328 Q331 L332 L339
BS12 CLA B7 H53 I57 W60 F381 L382 H51 I55 W58 F379 L380
BS13 CLA B7 N64 A88 H89 D114 Y117 S118 V645 W646 N62 A86 H87 D112 Y115 S116 V643 W644
BS14 CLA B7 I91 W92 D93 H95 F96 V645 W648 I89 W90 D91 H93 F94 V643 W646
BS15 CLA B7 W167 H177 W295 W165 H175 W293
BS16 CLA B7 F47 H50 F51 L54 W123 W167 R174 H177 H178 L182 F183 F45 H48 F49 L52 W121 W165 R172 H175 H176 L180 F181
BS17 CLA B7 D134 A189 W190 G192 H193 V197 G208 W209 F212 D132 A187 W188 G190 H191 V195 G206 W207 F210
BS18 CLA B7 T191 H196 R216 G221 L222 L255 T189 H194 R214 G219 L220 L253
BS19 CLA B7 W230 L255 F257 H275 L278 A279 V282 I492 W228 L253 F255 H273 L276 A277 V280 I490
BS20 CLA B7 F257 H275 H276 A279 H351 L355 W493 W497 F255 H273 H274 A277 H349 L353 W491 W495
BS21 CLA B7 S186 S187 W190 H276 H277 I280 I344 L347 M352 P357 S184 S185 W188 H274 H275 I278 I342 L345 M350 P355
BS22 CLA B7 L179 F183 F284 A287 Y291 L177 F181 F282 A285 Y289
BS23 CLA B7 H177 S180 V185 H289 T293 W295 I297 H175 S178 V183 H287 T291 W293 I295
BS24 CLA B7 H299 I304 H308 H297 I302 H306
BS25 CLA B7 H319 V407 H317 V405
BS26 CLA B7 N171 R174 L175 H178 F183 F323 I326 L336 A337 S340 L341 N169 R172 L173 H176 F181 F321 I324 L334 A335 S338 L339
BS27 CLA B7 V343 S346 L347 Q350 Q376 M383 F387 A531 I587 V341 S344 L345 Q348 Q374 M381 F385 A529 I585
BS28 CLA B7 V343 L347 Q350 H351 F509 V341 L345 Q348 H349 F507
BS29 CLA B7 W60 S118 T373 H374 Y377 I378 I718 A722 W58 S116 T371 H372 Y375 I376 I716 A720
BS30 CLA B7 T61 G119 W123 S186 T345 V348 M352 Y358 L371 H374 H375 I378 T59 G117 W121 S184 T343 V346 M350 Y356 L369 H372 H373 I376
BS31 CLA B7 D30 L334 L338 F381 G385 H389 R396 Y555 W573 F576 D28 L332 L336 F379 G383 H387 R394 Y553 W571 F574
BS32 CLA B7 R314 L315 R410 H414 H421 R312 L313 R408 H412 H419
BS33 CLA B7 H421 W424 H419 W422
BS34 CLA B7 I463 A466 W493 F509 I461 A464 W491 F507
BS35 CLA B7 Y353 I463 Q464 F509 L510 H520 V590 Y593 Y351 I461 Q462 F507 L508 H518 V588 Y591
BS36 CLA B7 F428 L429 P457 F459 A460 F517 H520 H521 F426 L427 P455 F457 A458 F515 H518 H519
BS37 CLA B7 L422 V425 L527 H528 L420 V423 L525 H526
BS38 CLA B7 T18 W22 I675 H682 P697 T16 W20 I673 H680 P695
BS39 CLA B7 F652 L655 I656 T659 F663 V708 H712 F650 L653 I654 T657 F661 V706 H710
BS40 CLA B7 H308 E309 P310 P311 H306 E307 P308 P309
BS41 PQN B7 W22 F663 S666 W667 R668 W671 A699 L700 A705 W20 F661 S664 W665 R666 W669 A697 L698 A703
BS42 CLA B7 G435 I438 H439 I453 G433 I436 H437 I451
BS43 CLA B7 W424 L427 F428 F431 H432 W422 L425 F426 F429 H430
BS44 CLA B7 L59 W60 F66 H67 W70 L57 W58 F64 H65 W68
BS45 CLA B7 P94 H95 P92 H93
BS46 3XQ B7 H432 I453 H430 I451
BS47 CLA B7 W680 P686 W678 P684
BS48 CLA B7 F8 I25 S28 H29 F6 I23 S26 H27
BS49 CLA B7 V286 M290 I297 G298 H299 V284 M288 I295 G296 H297
BS50 CLA B7 V484 A488 W493 V482 A486 W491
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:0009579 thylakoid
GO:0016020 membrane
GO:0042651 thylakoid membrane

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:7y7a, PDBe:7y7a, PDBj:7y7a
PDBsum7y7a
PubMed36922595
UniProtW0RYU6

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