Structure of PDB 6tcl Chain B

Receptor sequence
>6tclB (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.
ChainB
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 B A665 T666 F668 M669 Y677 W678 A663 T664 F666 M667 Y675 W676
BS02 CL0 B F627 L631 W632 F625 L629 W630
BS03 CLA B S430 L431 G434 L438 L539 I540 L585 F588 W589 S428 L429 G432 L436 L537 I538 L583 F586 W587
BS04 CLA B V442 W589 N592 W596 L623 W664 V440 W587 N590 W594 L621 W662
BS05 CLA B F8 N29 F31 H34 K45 F6 N27 F29 H32 K43
BS06 CLA B N29 F31 I46 H50 H53 L334 L338 H341 N27 F29 I44 H48 H51 L332 L336 H339
BS07 CLA B N29 H53 W60 I382 N27 H51 W58 I380
BS08 CLA B S63 F66 H67 W70 Q71 S61 F64 H65 W68 Q69
BS09 CLA B A88 H89 A116 Y117 V652 W653 A86 H87 A114 Y115 V650 W651
BS10 CLA B I91 W92 D93 H95 F96 I89 W90 D91 H93 F94
BS11 CLA B P94 H95 P92 H93
BS12 CLA B F47 A152 L155 H156 F161 W167 F45 A150 L153 H154 F159 W165
BS13 CLA B W167 H177 N294 W165 H175 N292
BS14 CLA B F47 H50 F51 L54 W123 W167 S170 R174 H177 H178 L182 F45 H48 F49 L52 W121 W165 S168 R172 H175 H176 L180
BS15 CLA B G128 M129 T137 F141 A189 W190 H193 V197 G208 W209 F212 G126 M127 T135 F139 A187 W188 H191 V195 G206 W207 F210
BS16 CLA B A189 I195 H196 T215 A216 P217 G221 L222 L278 A187 I193 H194 T213 A214 P215 G219 L220 L276
BS17 CLA B W230 A234 F257 H275 A279 V282 W228 A232 F255 H273 A277 V280
BS18 CLA B F257 G259 L268 H275 H276 H355 W500 W504 F255 G257 L266 H273 H274 H353 W498 W502
BS19 CLA B S186 S187 W190 H276 H277 I280 W351 V352 S361 Y362 S184 S185 W188 H274 H275 I278 W349 V350 S359 Y360
BS20 CLA B L179 F284 A287 M290 Y291 M304 L177 F282 A285 M288 Y289 M302
BS21 CLA B N176 H177 H289 T293 F295 N174 H175 H287 T291 F293
BS22 CLA B V286 M290 I297 G298 H299 V284 M288 I295 G296 H297
BS23 CLA B H299 M304 T309 F310 F319 H297 M302 T307 F308 F317
BS24 CLA B M305 H323 V411 M303 H321 V409
BS25 CLA B A171 R174 L175 H178 F183 Y327 Y330 N331 W340 H341 C344 L345 A169 R172 L173 H176 F181 Y325 Y328 N329 W338 H339 C342 L343
BS26 CLA B V347 S350 W351 Q354 M387 L534 T538 V345 S348 W349 Q352 M385 L532 T536
BS27 CLA B C344 V347 W351 H355 S358 L359 F516 C342 V345 W349 H353 S356 L357 F514
BS28 CLA B W60 S118 A374 T377 H378 Y381 V725 A729 W58 S116 A372 T375 H376 Y379 V723 A727
BS29 CLA B W60 W123 V348 V352 M356 Y362 H378 H379 W58 W121 V346 V350 M354 Y360 H376 H377
BS30 CLA B A26 N29 L338 F385 G389 H393 I396 R400 Y562 W580 F583 A24 N27 L336 F383 G387 H391 I394 R398 Y560 W578 F581
BS31 CLA B M321 R414 H418 H425 M319 R412 H416 H423
BS32 CLA B W428 F432 F435 H436 W426 F430 F433 H434
BS33 CLA B G439 H443 K455 I457 G437 H441 K453 I455
BS34 CLA B F466 I467 H471 L482 W504 F464 I465 H469 L480 W502
BS35 CLA B A492 A497 N498 W500 A490 A495 N496 W498
BS36 CLA B Y376 Q468 L517 I519 H527 I530 Y600 Y374 Q466 L515 I517 H525 I528 Y598
BS37 CLA B F432 L433 F463 F524 H528 A531 F430 L431 F461 F522 H526 A529
BS38 CLA B L426 W428 V429 H535 L424 W426 V427 H533
BS39 CLA B T18 W22 H689 R699 W700 P704 T16 W20 H687 R697 W698 P702
BS40 CLA B W22 F659 L662 H719 W20 F657 L660 H717
BS41 PQN B W22 M25 M669 F670 S673 W674 R675 W678 A706 L707 A712 W20 M23 M667 F668 S671 W672 R673 W676 A704 L705 A710
BS42 ECH B L65 W123 G138 L142 W209 L63 W121 G136 L140 W207
BS43 CLA B F599 W626 L631 S635 F657 H661 W664 Y724 T727 Y728 F731 F597 W624 L629 S633 F655 H659 W662 Y722 T725 Y726 F729
BS44 CLA B W655 L658 H661 L662 W664 A665 W653 L656 H659 L660 W662 A663
BS45 CLA B S424 L431 S422 L429
BS46 CLA B L685 H689 L683 H687
BS47 SF4 B C566 T574 C575 W674 C564 T572 C573 W672
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
View graph for
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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