Structure of PDB 6tcl Chain B1

Receptor sequence
>6tclB1 (length=739) Species: 103690 (Nostoc sp. PCC 7120 = FACHB-418) [Search protein sequence]
TKFPKFSQDLAQDPTTRRIWYAMAMGNDFESHDGMTEENLYQKIFATHFG
HLAIIFLWASSLLFHVAWQGNFEQWIKDPLHVRPIAHAIWDPHFGKPAIE
AFTQAGANGPVNIAYSGVYHWWYTIGMRTNTELYTGSVFLLLFASLFLFA
GWLHLQPKFRPSLAWFKSAESRLNHHLAGLFGVSSLAWAGHLIHVAIPES
RGQHVGWDNFLSTAPHPAGLQPFFTGNWGVYAQNPDTAGHIFSTSQGAGT
AILTFLGGFHPQTESLWLTDMAHHHLAIAVLFIVAGHMYRTNFGIGHSIK
EMMNAKTFFGKPVEGPFNMPHQGIYDTYNNSLHFQLGWHLACLGVVTSWV
AQHMYSLPSYAFIAKDYTTQAALYTHHQYIAIFLMVGAFAHGAIFLVRDY
DPEQNKGNVLERVLQHKEAIISHLSWVSLFLGFHTLGLYVHNDVVVAFGT
PEKQILIEPVFAQFIQAAHGKVLYGLDTLLSNPDSVAYTAYPNYANVWLP
GWLDAINSGTNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSK
LMPDKKDFGYAFPCDGPGRGGTCDISAWDSFYLSLFWALNTVGWVTFYWH
WKHLGIWQGNVAQFNENSTYLMGWFRDYLWANSAQLINGYNPYGVNNLSV
WAWMFLFGHLVWATGFMFLISWRGYWQELIETLVWAHERTPIANLVRWKD
KPVALSIVQARVVGLAHFTVGYVLTYAAFLIASTAGKFG
3D structure
PDB6tcl Distinct structural modulation of photosystem I and lipid environment stabilizes its tetrameric assembly.
ChainB1
Resolution3.2 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 B1 A665 F668 M669 Y677 W678 A663 F666 M667 Y675 W676
BS02 CL0 B1 L631 W632 L629 W630
BS03 CLA B1 S430 L431 G434 L438 L532 L539 I540 L585 F588 W589 S428 L429 G432 L436 L530 L537 I538 L583 F586 W587
BS04 CLA B1 L685 H689 L683 H687
BS05 CLA B1 V442 D445 W589 N592 W596 L623 F627 W664 F720 V440 D443 W587 N590 W594 L621 F625 W662 F718
BS06 CLA B1 F8 M25 N29 F31 K45 F6 M23 N27 F29 K43
BS07 CLA B1 F31 I46 H50 H53 L334 L338 H341 F29 I44 H48 H51 L332 L336 H339
BS08 CLA B1 N29 W60 I382 N27 W58 I380
BS09 CLA B1 S63 F66 H67 W70 Q71 S61 F64 H65 W68 Q69
BS10 CLA B1 A88 H89 A116 Y117 S118 V652 W653 A86 H87 A114 Y115 S116 V650 W651
BS11 CLA B1 I91 W92 D93 H95 F96 N114 V652 I89 W90 D91 H93 F94 N112 V650
BS12 CLA B1 P94 H95 P92 H93
BS13 CLA B1 A152 L155 H156 F161 W167 A150 L153 H154 F159 W165
BS14 CLA B1 W167 H177 W165 H175
BS15 CLA B1 F47 H50 F51 L54 W123 W167 R174 H177 H178 L182 F183 F45 H48 F49 L52 W121 W165 R172 H175 H176 L180 F181
BS16 CLA B1 G128 F141 A189 W190 H193 V197 G208 W209 F212 G126 F139 A187 W188 H191 V195 G206 W207 F210
BS17 CLA B1 L188 A189 I195 H196 A216 P217 L186 A187 I193 H194 A214 P215
BS18 CLA B1 F257 H275 L278 A279 V282 F255 H273 L276 A277 V280
BS19 CLA B1 F257 G259 L268 H275 H276 A279 H355 W504 F255 G257 L266 H273 H274 A277 H353 W502
BS20 CLA B1 W123 F183 S186 S187 W190 M273 H276 H277 I280 W351 V352 S361 Y362 W121 F181 S184 S185 W188 M271 H274 H275 I278 W349 V350 S359 Y360
BS21 CLA B1 L179 F284 A287 M290 Y291 L177 F282 A285 M288 Y289
BS22 CLA B1 N176 H177 H289 T293 F295 N174 H175 H287 T291 F293
BS23 CLA B1 V286 M290 I297 G298 H299 V284 M288 I295 G296 H297
BS24 CLA B1 H299 M304 A307 T309 F310 F319 H297 M302 A305 T307 F308 F317
BS25 CLA B1 M305 P318 F319 H323 V411 M303 P316 F317 H321 V409
BS26 CLA B1 A171 R174 L175 H178 F183 I301 Y327 Y330 W340 H341 C344 A169 R172 L173 H176 F181 I299 Y325 Y328 W338 H339 C342
BS27 CLA B1 V347 S350 W351 Q354 Q380 I384 M387 L534 T538 V345 S348 W349 Q352 Q378 I382 M385 L532 T536
BS28 CLA B1 C344 V347 W351 Q354 H355 S358 F516 C342 V345 W349 Q352 H353 S356 F514
BS29 CLA B1 W60 S118 A374 H378 Y381 V725 W58 S116 A372 H376 Y379 V723
BS30 CLA B1 W60 W123 V352 M356 Y362 H378 H379 W58 W121 V350 M354 Y360 H376 H377
BS31 CLA B1 A26 L338 L342 F385 G389 H393 I396 Y562 W580 F583 A24 L336 L340 F383 G387 H391 I394 Y560 W578 F581
BS32 CLA B1 M321 R414 H418 H425 M319 R412 H416 H423
BS33 CLA B1 W428 F432 F435 H436 W426 F430 F433 H434
BS34 CLA B1 G439 H443 K455 G437 H441 K453
BS35 CLA B1 F466 I467 H471 L482 W504 F464 I465 H469 L480 W502
BS36 CLA B1 A497 W500 A495 W498
BS37 CLA B1 Q354 Y376 Q468 L517 I519 H527 I530 Y600 Q352 Y374 Q466 L515 I517 H525 I528 Y598
BS38 CLA B1 F432 L433 V462 F463 F524 H528 A531 F430 L431 V460 F461 F522 H526 A529
BS39 CLA B1 L426 H535 L424 H533
BS40 CLA B1 T18 W22 H689 R699 W700 P704 T16 W20 H687 R697 W698 P702
BS41 CLA B1 W22 F659 L662 T666 V715 H719 W20 F657 L660 T664 V713 H717
BS42 PQN B1 W22 M25 M669 F670 S673 W674 R675 W678 A706 L707 A712 W20 M23 M667 F668 S671 W672 R673 W676 A704 L705 A710
BS43 ECH B1 L65 G138 L142 W209 L63 G136 L140 W207
BS44 CLA B1 Y441 N592 F599 W626 L631 S635 F657 H661 W664 Y724 T727 Y728 F731 Y439 N590 F597 W624 L629 S633 F655 H659 W662 Y722 T725 Y726 F729
BS45 CLA B1 W655 L658 F659 H661 L662 W664 A665 W653 L656 F657 H659 L660 W662 A663
BS46 CLA B1 S424 S427 L431 S422 S425 L429
BS47 SF4 B1 C566 C575 W674 C564 C573 W672
BS48 CLA B1 H425 W428 H423 W426
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
View graph for
Cellular Component
External links
PDB RCSB:6tcl, PDBe:6tcl, PDBj:6tcl
PDBsum6tcl
PubMed32170279
UniProtP58565|PSAB1_NOSS1 Photosystem I P700 chlorophyll a apoprotein A2 1 (Gene Name=psaB1)

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