Structure of PDB 6tcl Chain A2

Receptor sequence
>6tclA2 (length=740) Species: 103690 (Nostoc sp. PCC 7120 = FACHB-418) [Search protein sequence]
KARVIVDKDPVPTSFEKWAQPGHFDRTLARGPKTTTWIWNLHALAHDFDT
HTSDLEDISRKIFAAHFGHLAVVTIWLSGMIFHGAKFSNYEAWLSDPLNV
RPSAQVVWPIVGQDILNGDVGGGFHGIQITSGLFQVWRGWGITNSFQLYC
TAIGGLVLAGLFLFAGWFHYHKRAPKLEWFQNVESMLNHHLQVLLGCGSL
GWAGHLIHVSAPINKLMDAGVAVKDIPLPHEFILNKSLLIDLFPGFAAGL
TPFFTLNWGQYADFLTFKGGLNPVTGGLWMTDIAHHHLAIAVVFIIAGHQ
YRTNWGIGHSIKEILENHKGPFTGEGHKGLYENLTTSWHAQLATNLAFLG
SLTIIIAHHMYAMPPYPYLATDYATQLCIFTHHIWIGGFLIVGGAAHAAI
FMVRDYDPVVNQNNVLDRVIRHRDAIISHLNWVCIFLGFHSFGLYIHNDT
MRALGRPQDMFSDTAIQLQPVFAQWVQNLHTLAPGGTAPNALEPVSYAFG
GGVLAVGGKVAMMPIALGTADFLIHHIHAFTIHVTVLILLKGVLFARSSR
LIPDKANLGFRFPCDGPGRGGTCQVSGWDHVFLGLFWMYNSLSIVIFHFS
WKMQSDVWGTVDAAGNVSHITGGNFAQSAITINGWLRDFLWAQASQVINS
YGSALSAYGLMFLGAHFVWAFSLMFLFSGRGYWQELIESIVWAHNKLKVA
PAIQPRALSITQGRAVGVAHYLLGGIATTWAFFHAHILSV
3D structure
PDB6tcl Distinct structural modulation of photosystem I and lipid environment stabilizes its tetrameric assembly.
ChainA2
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 A2 N442 C445 I446 F450 F453 F541 L548 I549 F597 W598 N431 C434 I435 F439 F442 F530 L537 I538 F586 W587
BS02 CL0 A2 Y600 F608 W646 F673 H677 W680 T739 T740 F743 Y589 F597 W635 F662 H666 W669 T728 T729 F732
BS03 CLA A2 F678 A681 F682 M685 Y693 W694 L697 F667 A670 F671 M674 Y682 W683 L686
BS04 CLA A2 I49 L52 H53 I38 L41 H42
BS05 CLA A2 F35 H53 A56 H57 F24 H42 A45 H46
BS06 CLA A2 H57 F59 I73 H77 H80 L81 W349 L353 N356 H46 F48 I62 H66 H69 L70 W338 L342 N345
BS07 CLA A2 H57 H80 V84 W87 H46 H69 V73 W76
BS08 CLA A2 W87 G90 F93 H94 F98 W119 W76 G79 F82 H83 F87 W108
BS09 CLA A2 M91 Q116 I140 S142 Y669 M80 Q105 I129 S131 Y658
BS10 CLA A2 V118 W119 Q124 V107 W108 Q113
BS11 CLA A2 V15 F78 L172 A176 F179 H180 R184 W190 V4 F67 L161 A165 F168 H169 R173 W179
BS12 CLA A2 T24 F26 K28 W29 H34 K72 G177 Y181 H182 T13 F15 K17 W18 H23 K61 G166 Y170 H171
BS13 CLA A2 A13 V15 W190 H200 A2 V4 W179 H189
BS14 CLA A2 F74 H77 W190 F191 M197 H200 H201 V204 F63 H66 W179 F180 M186 H189 H190 V193
BS15 CLA A2 W151 Q158 T162 G212 W213 H216 P240 W140 Q147 T151 G201 W202 H205 P229
BS16 CLA A2 I218 H219 K247 F257 L261 I207 H208 K236 F246 L250
BS17 CLA A2 H241 L245 H230 L234
BS18 CLA A2 W269 L276 H296 L299 A300 V303 N501 W258 L265 H285 L288 A289 V292 N490
BS19 CLA A2 F278 D293 H296 H297 A300 I301 H370 M374 F267 D282 H285 H286 A289 I290 H359 M363
BS20 CLA A2 W151 L206 W213 H297 H298 I367 P376 Y377 W140 L195 W202 H286 H287 I356 P365 Y366
BS21 CLA A2 Q203 H310 R313 T314 Q192 H299 R302 T303
BS22 CLA A2 L202 F305 A308 Q311 Y312 L191 F294 A297 Q300 Y301
BS23 CLA A2 I307 Q311 I318 G319 H320 I296 Q300 I307 G308 H309
BS24 CLA A2 H320 I325 N328 H329 H309 I314 N317 H318
BS25 CLA A2 L326 H338 L341 V426 L427 L315 H327 L330 V415 L416
BS26 CLA A2 V194 M197 L345 S348 W349 N356 F359 V183 M186 L334 S337 W338 N345 F348
BS27 CLA A2 I365 H369 I402 V547 S602 I354 H358 I391 V536 S591
BS28 CLA A2 L363 I366 H370 M374 F510 L352 I355 H359 M363 F499
BS29 CLA A2 W87 M91 S142 T392 H393 I737 W741 W76 M80 S131 T381 H382 I726 W730
BS30 CLA A2 L144 V147 T364 I367 M371 Y377 I390 H393 H394 L133 V136 T353 I356 M360 Y366 I379 H382 H383
BS31 CLA A2 A54 H57 D58 F400 G404 H408 I411 F571 R572 W589 A43 H46 D47 F389 G393 H397 I400 F560 R561 W578
BS32 CLA A2 F333 T334 R429 H433 H440 F322 T323 R418 H422 H429
BS33 CLA A2 H440 W443 H429 W432
BS34 CLA A2 W443 F447 F450 H451 W432 F436 F439 H440
BS35 CLA A2 F450 G454 L455 I457 H458 M462 R467 D470 F472 F439 G443 L444 I446 H447 M451 R456 D459 F461
BS36 CLA A2 L490 H491 A494 T498 V506 L479 H480 A483 T487 V495
BS37 CLA A2 F278 A499 P500 N501 F267 A488 P489 N490
BS38 CLA A2 H369 Y372 F483 Q488 F510 I526 H536 H539 H609 H358 Y361 F472 Q477 F499 I515 H525 H528 H598
BS39 CLA A2 L448 P481 F483 A484 F533 H537 L437 P470 F472 A473 F522 H526
BS40 CLA A2 I437 L441 V444 H544 I426 L430 V433 H533
BS41 CLA A2 F682 V727 H731 F671 V716 H720
BS42 PQN A2 M685 F686 R691 W694 A718 L719 M674 F675 R680 W683 A707 L708
BS43 CLA A2 K330 P332 F333 K319 P321 F322
BS44 CLA A2 L671 L674 G675 F678 A681 L660 L663 G664 F667 A670
BS45 CLA A2 L647 W652 L636 W641
BS46 CLA A2 F453 I457 D460 F597 W598 N601 I643 Y732 F442 I446 D449 F586 W587 N590 I632 Y721
BS47 CLA A2 I701 H705 I690 H694
BS48 SF4 A2 C575 C584 I721 C564 C573 I710
BS49 CLA A2 T46 I49 H705 P712 P716 T35 I38 H694 P701 P705
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
UniProtP58576|PSAA_NOSS1 Photosystem I P700 chlorophyll a apoprotein A1 (Gene Name=psaA)

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