Structure of PDB 7s3d Chain a

Receptor sequence

>7s3da (length=749) Species: 91464 (Synechococcus sp. PCC 7335)

ASAATEQSPIPTSFERWAKPGHFDRTLARGPKTTTWIWNLHADAHDFDSH
TNDLQDISRKIFSAHFGHLAVVFVWLSGMYFHGARFSNFSSWMADPTHIR
PSAQVVWPLVGQDILNGDMGGGFRGIQITSGLFQMWRGEGFTNEFQLYCT
AIGALVMAGLMIFAGWFHYHVRSPKLEWFQNVQSMLNHHLAGLLGLGSLG
WAGHLIHVALPTNKLLDAGVAPQDIPLPHEFVLDKALMAELYPSFAQGIR
PFFTLNWATYSDFLTFNGGLNPVTGGLWMTDIAHHHVAIAVLFIFAGHMY
RTNWGIGHSIRTMLEDARHPKMLPFLSFIGPVGHRGLFEVLTTSWHAQLS
INLAMMGSLSIIVAQHMYSMPPYPYLATDYGTVTSLFTHHMWIGGFLIVG
AAAHAGIFMVRDYDPAENVNNVLDRVLRHRDAIISHLVWVCQFLGFHSFA
MYCHNDTMRAFGRPQDMFSDTGIQLQPIFAQWVQHIQTMAVGSTTAPGVA
SPASYAFGGGLVAVGGKVAMMPISLGTADFLIHHIHAFTIHVTVLVLLKG
VLFARNSRLIPDKSELGFRFPCDGPGRGGTCQVSAWDHVFLGLFWMYNSI
AMVIFHFFWKMQSDVWGAVDANGTVSHITGGNFAQSSITINGWLRDFLWA
QATQVISSYGSALSAYGLMFLAGHFVFAFSLMFLFSGRGYWQELIESIVW
AHNKLRITTAIQPRALSITQGRAVGAAHYLLGSIVTTWAFFLARMAAIG

3D structure

• PDB: 7s3d Structure of a photosystem I-ferredoxin complex from a marine cyanobacterium provides insights into far-red light photoacclimation.
• Chain: a
• Resolution: 2.91 Å

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	a	P334 F335	P324 F325
BS02	CL0	a	Y462 Y630 M635 F638 I673 W676 L681 A685 F703 H707 F710 Y762 T769 T770 F773	Y452 Y597 M602 F605 I640 W643 L648 A652 F670 H674 F677 Y729 T736 T737 F740
BS03	CLA	a	F459 F571 W628 N631 I673 Y762	F449 F538 W595 N598 I640 Y729
BS04	CLA	a	F708 A711 F712 L714 M715 Y723 W724 L727	F675 A678 F679 L681 M682 Y690 W691 L694
BS05	CLA	a	I47 W48 H51	I37 W38 H41
BS06	CLA	a	W27 F33 A54 H55	W17 F23 A44 H45
BS07	CLA	a	H55 I71 A74 H75 H78 L79 F83 W355 H356 Q358 L359 N362	H45 I61 A64 H65 H68 L69 F73 W345 H346 Q348 L349 N352
BS08	CLA	a	H55 H78 V81 W85 F406 L407	H45 H68 V71 W75 F396 L397
BS09	CLA	a	G88 F91 H92 F96 W117	G78 F81 H82 F86 W107
BS10	CLA	a	M89 Q114 I138 T139 S140 A698 Y699 W771	M79 Q104 I128 T129 S130 A665 Y666 W738
BS11	CLA	a	Q114 V116 W117 Q122 L125	Q104 V106 W107 Q112 L115
BS12	CLA	a	A11 F72 F76 L170 F173 A174 F177 H178 R182 W188	A1 F62 F66 L160 F163 A164 F167 H168 R172 W178
BS13	CLA	a	S23 R26 W27 H32 K70 S73 G175 W176 Y179 H180	S13 R16 W17 H22 K60 S63 G165 W166 Y169 H170
BS14	CLA	a	W188 N191 S194 H198 W314	W178 N181 S184 H188 W304
BS15	CLA	a	F72 H75 F76 L79 M171 W188 F189 M195 H198 H199	F62 H65 F66 L69 M161 W178 F179 M185 H188 H189
BS16	CLA	a	G150 F151 Q156 T160 G210 W211 H214 H217 V218 P238	G140 F141 Q146 T150 G200 W201 H204 H207 V208 P228
BS17	CLA	a	L209 G213 I216 H217 V242 F255 G258 I259	L199 G203 I206 H207 V232 F245 G248 I249
BS18	CLA	a	C159 L237 H239 L243	C149 L227 H229 L233
BS19	CLA	a	W267 Y270 S271 L274 F276 H294 V297 A298 V301 L302 F305	W257 Y260 S261 L264 F266 H284 V287 A288 V291 L292 F295
BS20	CLA	a	F276 G278 D291 I292 H294 H295 H376 M380 A536	F266 G268 D281 I282 H284 H285 H366 M370 A503
BS21	CLA	a	E149 L204 G207 S208 W211 I292 H295 H296 I299 F303 L369 H376 P382 Y383	E139 L194 G197 S198 W201 I282 H285 H286 I289 F293 L359 H366 P372 Y373
BS22	CLA	a	H198 L206 H308 T312 W314	H188 L196 H298 T302 W304
BS23	CLA	a	L200 L204 L302 F303 A306 M309 Y310 M323	L190 L194 L292 F293 A296 M299 Y300 M313
BS24	CLA	a	F305 H308 M309 G317 H318	F295 H298 M299 G307 H308
BS25	F6C	a	H318 M323 D326 M332 L333 L336	H308 M313 D316 M322 L323 L326
BS26	CLA	a	L336 F338 H344 L347 L433	L326 F328 H334 L337 L423
BS27	CLA	a	M195 L196 H199 L351 T352 Q358 I361 N362 M365 M366	M185 L186 H189 L341 T342 Q348 I351 N352 M355 M356
BS28	CLA	a	I371 I372 Q375 I408 I573 T576 V577 S632	I361 I362 Q365 I398 I540 T543 V544 S599
BS29	CLA	a	I372 H376 S379 M380 F540	I362 H366 S369 M370 F507
BS30	CLA	a	W85 S140 S395 T398 H399 W402 I767 W771	W75 S130 S385 T388 H389 W392 I734 W738
BS31	CLA	a	W85 M145 M366 L369 V373 Y383 H399 H400 I403	W75 M135 M356 L359 V363 Y373 H389 H390 I393
BS32	CLA	a	A52 D53 H55 D56 L359 L363 F406 G410 H414 I417 F601 R602 W619	A42 D43 H45 D46 L349 L353 F396 G400 H404 I407 F568 R569 W586
BS33	CLA	a	F338 V432 R435 V436 H439 H446	F328 V422 R425 V426 H429 H436
BS34	CLA	a	H446 W449	H436 W439
BS35	CLA	a	W449 F453 F456 H457	W439 F443 F446 H447
BS36	CLA	a	F456 A460 M461 H464 M468 R473 D476 F478	F446 A450 M451 H454 M458 R463 D466 F468
BS37	CLA	a	W492 V493 I496 Q497 A500 T528	W482 V483 I486 Q487 A490 T495
BS38	CLA	a	F276 T528 A529 P530 G531	F266 T495 A496 P497 G498
BS39	CLA	a	Q375 Y378 F489 V493 Q494 F540 I556 L558 H566 H569 V636 H639 K643	Q365 Y368 F479 V483 Q484 F507 I523 L525 H533 H536 V603 H606 K610
BS40	CLA	a	F453 L454 P487 I488 F489 A490 F563 H566 H567 A570 H574	F443 L444 P477 I478 F479 A480 F530 H533 H534 A537 H541
BS41	CLA	a	L447 I573 H574 V577	L437 I540 H541 V544
BS42	CLA	a	I731 H735 I740	I698 H702 I707
BS43	CLA	a	I47 W48 H735 T742 P746	I37 W38 H702 T709 P713
BS44	CLA	a	W48 F708 F712 L749 V757 H761 L764	W38 F675 F679 L716 V724 H728 L731
BS45	PQN	a	M715 F716 S719 W724 A748 L749	M682 F683 S686 W691 A715 L716
BS46	SF4	a	C605 G607 C614	C572 G574 C581
BS47	CLA	a	L681 W682	L648 W649
BS48	CLA	a	L704 A705 F708 F710 A711	L671 A672 F675 F677 A678
BS49	CLA	a	V448 Q452 F456 F459 F571 L578 F627 W628	V438 Q442 F446 F449 F538 L545 F594 W595
BS50	CLA	a	T467 A470 F471	T457 A460 F461
BS51	CLA	a	W733 K737 L738	W700 K704 L705
BS52	F6C	a	W449 Q452	W439 Q442

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

External links

• PDB: RCSB:7s3d, PDBe:7s3d, PDBj:7s3d
• PDBsum: 7s3d
• PubMed: 34793839
• UniProt: B4WP20