Structure of PDB 7lx0 Chain A

Receptor sequence

>7lx0A (length=751) Species: 98439 (Fischerella thermalis PCC 7521)

EVRVVVDNDPVPTSFQKWSQPGHFDRTLAKGAKTTTWIWNLHANAHDFDT
HTSDLEDISRKIFAAHFGHLAVVFIWLSGMYFHGARFSNFEAWMANPTGI
KPSAQVVWPIFGQEILNGDMGGGFHGIQITSGLFQMWRAAGFTNTFQLYC
TAIGGLVMAALMLFAGWFHYHKRAPKLEWFQNTQSMLNHHLAGLLGLGSL
GWTGHLIHVSLPTNKLLDTGVALKDIPLPHEFILNPSLMNKLYPHADWGF
VKGVVPFFTLQWGHFTDFLTFKGGLNPVTGGLWLTDVAHHHLAIAVMFII
AGHMYRTNWGIGHSIKEMLDDARTPNMLPFLSFIGPVGHKGLFEVLTTSW
HAQLSINLAMLGSLSIIIAHHMYAMPPYPYLATDYGTVVSLFTHHVWIGG
FLIVGGAAHAAIYMVRDYDPEQNFNNVLDRVLRHRDAIISHLAWVCQFLG
FHSFAMYCHNDTMRAFGRPQDMFSDTGIQLQPVFAQWLQHIHTMTIAAPN
LHDPVSYAFGGGVVAVGGKVAMMPITLGTADFLIHHIHAFTIHVTVLVLL
KGVLFARSSRLIPDKANLGFRFPCDGPGRGGTCQVSAWDHVFLGLFWMYN
SLSMVIFHFFWKMQSDVWGTVGADGVVTHITGGNFATSSITNNGWLRDFL
WAQSTQVITSYNTSLSAYGLMFLGGHFIFGFSLMFLFSGRGYWQELIESI
VWAHNKLKVAPAIQPRALSIIHGRAVGVAHYLLGGIVTTWAFFLARMTAF
G

3D structure

• PDB: 7lx0 Quantitative assessment of chlorophyll types in cryo-EM maps of photosystem I acclimated to far-red light
• Chain: A
• Resolution: 2.96 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	CL0	A	Y466 I574 F577 T578 Y636 N637 S640 M641 F644 W682 L687 S691 I695 F709 H713 F716 Y768 T775 T776 F779	Y457 I537 F540 T541 Y599 N600 S603 M604 F607 W645 L650 S654 I658 F672 H676 F679 Y731 T738 T739 F742
BS02	CLA	A	F463 D470 F577 W634 N637 N679 Y768	F454 D461 F540 W597 N600 N642 Y731
BS03	CLA	A	F714 G717 F718 L720 M721 Y729 W730	F677 G680 F681 L683 M684 Y692 W693
BS04	CLA	A	W46 I47 L50 H51	W37 I38 L41 H42
BS05	CLA	A	F33 L50 A54 H55 G77 H78	F24 L41 A45 H46 G68 H69
BS06	CLA	A	H55 I71 A74 H75 H78 V82 F83 W359 H360 Q362 L363 N366	H46 I62 A65 H66 H69 V73 F74 W350 H351 Q353 L354 N357
BS07	CLA	A	H55 H78 V81 W85 L411	H46 H69 V72 W76 L402
BS08	CLA	A	W85 G88 F91 H92 F96 W117 L165	W76 G79 F82 H83 F87 W108 L156
BS09	CLA	A	M89 I138 T139 S140 A704 Y705 W777	M80 I129 T130 S131 A667 Y668 W740
BS10	CLA	A	Q114 V116 W117 F120 Q122 A704 L707	Q105 V107 W108 F111 Q113 A667 L670
BS11	CLA	A	V13 F72 F76 A174 F177 H178 R182 W188	V4 F63 F67 A165 F168 H169 R173 W179
BS12	CLA	A	T22 S23 K26 W27 H32 K70 A73 G77 G175 W176 Y179 H180	T13 S14 K17 W18 H23 K61 A64 G68 G166 W167 Y170 H171
BS13	CLA	A	V11 V13 W188 N191 H198 T316 W318	V2 V4 W179 N182 H189 T307 W309
BS14	CLA	A	F72 H75 F76 W188 N191 M195 H198 H199 G202	F63 H66 F67 W179 N182 M186 H189 H190 G193
BS15	CLA	A	F151 Q156 T160 G210 W211 G213 H214 H217 V218 P238 H239	F142 Q147 T151 G201 W202 G204 H205 H208 V209 P229 H230
BS16	CLA	A	L209 G213 I216 H217 W257 G258 F259 G262 V263 F274 L301	L200 G204 I207 H208 W248 G249 F250 G253 V254 F265 L292
BS17	CLA	A	H239 I242 L243	H230 I233 L234
BS18	CLA	A	W271 F274 T275 L278 H298 L301 A302 V305 M306 N537	W262 F265 T266 L269 H289 L292 A293 V296 M297 N500
BS19	CLA	A	F280 L291 D295 V296 H298 H299 A302 M306 H380 M384 V542	F271 L282 D286 V287 H289 H290 A293 M297 H371 M375 V505
BS20	CLA	A	L204 G207 S208 W211 H299 H300 F307 L373 I377 M381 P386 Y387	L195 G198 S199 W202 H290 H291 F298 L364 I368 M372 P377 Y378
BS21	CLA	A	N197 H198 A201 G202 L206 H312 T316 W318	N188 H189 A192 G193 L197 H303 T307 W309
BS22	CLA	A	L200 A310 M313 Y314 M327 M369	L191 A301 M304 Y305 M318 M360
BS23	CLA	A	I309 M313 I320 G321 H322	I300 M304 I311 G312 H313
BS24	F6C	A	H322 M327 N335 M336 L337	H313 M318 N326 M327 L328
BS25	CLA	A	L328 F342 I343 H348 V436 L437	L319 F333 I334 H339 V427 L428
BS26	CLA	A	T192 M195 L196 H199 L355 T356 W359 Q362 I365 N366 M369	T183 M186 L187 H190 L346 T347 W350 Q353 I356 N357 M360
BS27	CLA	A	I375 I376 H379 I412 I579 T582 V583 S638	I366 I367 H370 I403 I542 T545 V546 S601
BS28	CLA	A	L373 I376 H380 A383 M384 S543 F546	L364 I367 H371 A374 M375 S506 F509
BS29	CLA	A	W85 S140 S399 T402 H403 W406 M708 W777	W76 S131 S390 T393 H394 W397 M671 W740
BS30	CLA	A	G141 M145 L370 I377 Y387 L400 H403 H404 I407	G132 M136 L361 I368 Y378 L391 H394 H395 I398
BS31	CLA	A	H51 A52 H55 D56 L363 F410 G414 H418 I421 R425 F607 R608 W625	H42 A43 H46 D47 L354 F401 G405 H409 I412 R416 F570 R571 W588
BS32	CLA	A	F342 I343 V436 R439 V440 H443 H450	F333 I334 V427 R430 V431 H434 H441
BS33	CLA	A	H450 W453	H441 W444
BS34	CLA	A	W453 Q456 F457 F460 H461	W444 Q447 F448 F451 H452
BS35	CLA	A	F460 A464 H468 M472 R477 D480 F482	F451 A455 H459 M463 R468 D471 F473
BS36	CLA	A	W496 L497 H501 T504	W487 L488 H492 T495
BS37	CLA	A	F280 A534 A535 P536 N537	F271 A497 A498 P499 N500
BS38	CLA	A	H379 Y382 F493 W496 L497 Q498 F546 I562 H572 H575 V642 H645 K649	H370 Y373 F484 W487 L488 Q489 F509 I525 H535 H538 V605 H608 K612
BS39	CLA	A	V454 F457 L458 P491 V492 F493 A494 F569 H572 H573 A576	V445 F448 L449 P482 V483 F484 A485 F532 H535 H536 A539
BS40	CLA	A	I447 L451 A576 H580 V583	I438 L442 A539 H543 V546
BS41	CLA	A	I737 H741	I700 H704
BS42	CLA	A	T44 W48 I734 V738 H741 P748 P752	T35 W39 I697 V701 H704 P711 P715
BS43	CLA	A	W48 I715 F718 L755 H759 V763 H767 L770	W39 I678 F681 L718 H722 V726 H730 L733
BS44	PQN	A	M721 F722 S725 R727 W730 A754 L755	M684 F685 S688 R690 W693 A717 L718
BS45	SF4	A	C611 G613 C620 I757	C574 G576 C583 I720
BS46	CLA	A	L683 L687 W688	L646 L650 W651
BS47	CLA	A	L710 G711 H713 F714 F716	L673 G674 H676 F677 F679
BS48	CLA	A	A452 Q456 G459 F460 F577 F633 W634	A443 Q447 G450 F451 F540 F596 W597
BS49	CLA	A	T471 A474 F475	T462 A465 F466
BS50	CLA	A	W739 K743 L744	W702 K706 L707
BS51	F6C	A	W453 Q456	W444 Q447

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:7lx0, PDBe:7lx0, PDBj:7lx0
• PDBsum: 7lx0
• UniProt: G6FME9