Structure of PDB 6tcl Chain BB

Receptor sequence
>6tclBB (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.
ChainBB
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 BB A665 T666 F668 M669 Y677 W678 A663 T664 F666 M667 Y675 W676
BS02 CL0 BB F627 L631 F625 L629
BS03 CLA BB S430 L431 G434 L438 L532 L539 I540 L585 F588 W589 S428 L429 G432 L436 L530 L537 I538 L583 F586 W587
BS04 CLA BB L685 H689 L683 H687
BS05 CLA BB V442 F588 W589 N592 W596 V440 F586 W587 N590 W594
BS06 CLA BB P6 F8 M25 N29 F31 H34 K45 P4 F6 M23 N27 F29 H32 K43
BS07 CLA BB N29 F31 I46 H50 H53 L334 L338 H341 N27 F29 I44 H48 H51 L332 L336 H339
BS08 CLA BB N29 H53 W60 I382 N27 H51 W58 I380
BS09 CLA BB S63 F66 H67 W70 Q71 S61 F64 H65 W68 Q69
BS10 CLA BB A88 H89 N114 I115 A116 Y117 V652 W653 A86 H87 N112 I113 A114 Y115 V650 W651
BS11 CLA BB I91 W92 D93 H95 F96 N114 V652 I89 W90 D91 H93 F94 N112 V650
BS12 CLA BB L155 H156 F161 W167 L153 H154 F159 W165
BS13 CLA BB W167 H177 W165 H175
BS14 CLA BB F47 H50 F51 L54 W123 W167 S170 R174 H177 H178 L182 F183 F45 H48 F49 L52 W121 W165 S168 R172 H175 H176 L180 F181
BS15 CLA BB G128 E134 F141 A189 W190 H193 V197 G208 W209 F212 G126 E132 F139 A187 W188 H191 V195 G206 W207 F210
BS16 CLA BB A189 I195 H196 T215 P217 L222 A187 I193 H194 T213 P215 L220
BS17 CLA BB W230 F257 H275 L278 A279 V282 W228 F255 H273 L276 A277 V280
BS18 CLA BB F257 G259 L268 H275 H276 H355 L359 W500 W504 F255 G257 L266 H273 H274 H353 L357 W498 W502
BS19 CLA BB W123 S186 S187 W190 H276 H277 W351 V352 S361 Y362 W121 S184 S185 W188 H274 H275 W349 V350 S359 Y360
BS20 CLA BB L179 F284 A287 M290 Y291 M304 L177 F282 A285 M288 Y289 M302
BS21 CLA BB N176 H177 H289 T293 F295 N174 H175 H287 T291 F293
BS22 CLA BB V286 M290 I297 G298 H299 V284 M288 I295 G296 H297
BS23 CLA BB H299 M304 A307 T309 F310 F319 H297 M302 A305 T307 F308 F317
BS24 CLA BB M305 F319 H323 V411 M303 F317 H321 V409
BS25 CLA BB A171 R174 L175 H178 F183 Y327 Y330 W340 H341 C344 L345 A169 R172 L173 H176 F181 Y325 Y328 W338 H339 C342 L343
BS26 CLA BB V347 S350 W351 Q354 Q380 M387 L534 T538 V345 S348 W349 Q352 Q378 M385 L532 T536
BS27 CLA BB C344 V347 W351 H355 S358 L359 F516 C342 V345 W349 H353 S356 L357 F514
BS28 CLA BB W60 S118 A374 H378 Y381 I382 V725 W58 S116 A372 H376 Y379 I380 V723
BS29 CLA BB W60 W123 L345 V348 V352 M356 Y362 H378 H379 W58 W121 L343 V346 V350 M354 Y360 H376 H377
BS30 CLA BB A26 N29 L338 F385 G389 H393 I396 Y562 W580 F583 A24 N27 L336 F383 G387 H391 I394 Y560 W578 F581
BS31 CLA BB M321 R414 H418 H425 M319 R412 H416 H423
BS32 CLA BB H436 G439 H443 K455 H434 G437 H441 K453
BS33 CLA BB F466 I467 H471 L482 W504 F464 I465 H469 L480 W502
BS34 CLA BB A492 A497 N498 W500 A490 A495 N496 W498
BS35 CLA BB Y376 Q468 L517 H527 I530 Y600 Y374 Q466 L515 H525 I528 Y598
BS36 CLA BB F432 L433 F463 F524 H528 A531 F430 L431 F461 F522 H526 A529
BS37 CLA BB L426 W428 H535 L424 W426 H533
BS38 CLA BB T18 H689 W700 K701 P704 T16 H687 W698 K699 P702
BS39 CLA BB W22 F659 L662 V715 H719 W20 F657 L660 V713 H717
BS40 PQN BB M25 M669 F670 S673 W674 R675 W678 A706 L707 A712 M23 M667 F668 S671 W672 R673 W676 A704 L705 A710
BS41 ECH BB L65 W123 G138 L142 W209 L63 W121 G136 L140 W207
BS42 CLA BB Y441 N592 W596 F599 W626 L631 S635 F657 H661 W664 Y724 T727 Y728 F731 Y439 N590 W594 F597 W624 L629 S633 F655 H659 W662 Y722 T725 Y726 F729
BS43 CLA BB W655 L658 H661 L662 W664 A665 W653 L656 H659 L660 W662 A663
BS44 CLA BB S424 S427 L431 S422 S425 L429
BS45 SF4 BB C566 T574 C575 W674 C564 T572 C573 W672
BS46 CLA BB W428 F432 H436 W426 F430 H434
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

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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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