Structure of PDB 6zzx Chain B

Receptor sequence

>6zzxB (length=731) Species: 2649997 (Chlorella ohadii) [Search protein sequence]

KLFPKFSQALAQDPTTRRIWFGIATAHDFESHDGMTEERLYQKIFASHFG
QLAIIFLWTSGNLFHVAWQGNFEQWVQDPLHIRPIAHAIWDPHFGQPAVE
AFTRGGASGPVNISTSGVYQWWYTIGLRTNQELYTGSIFLLVLAALFLFA
GWLHLQPAFQPALSWFKNAESRLNHHLAGLFGVSSLAWTGHLVHVAIPES
RGQHVGWDNFLTVLPHPAGLTPFFTGNWAAYAENPDSASHVFNTAQGSGT
AILTFLGGFHPQTQSLWLTDMAHHHLAIAVIFILAGHMYRTIFGIGHSMR
EILEAQTPPSGSLGAGHKGLYDTVNNSLHFQLGLALASVGTISSLVAQHM
YSLPPYAFLAQDFTTQAALYTHHQYIAGFIMCGAFAHGAIFFVRDYDPAQ
NRGNVLARILDHKEALISHLSWASLFLGFHTLGLYVHNDVVQAFGTPEKQ
ILIEPVFAQWIQAAHGKTAYGFDFLLSSATSAPSLAGQALWLPGWLQGIN
SDANSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKKD
FGYSFPCDGPGRGGTCDISAWDAFYLAVFWMLNTIGWVTFYWHWKHLGIW
QGNVNQFNESSTYLMGWLRDYLWLNSSQLINGYNPFGMNSLSVWAWMFLF
GHLIYATGFMFLISWRGYWQELIETLAWAHERTPLANLVRWRDKPVALSI
VQARLVGLTHFSVGYVLTYAAFLIASTSGKF

3D structure

PDB

6zzx Cryo-EM photosystem I structure reveals adaptation mechanisms to extreme high light in Chlorella ohadii.

Chain

Resolution

2.7 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	CL0	B	L621 W626	L618 W623
BS02	CLA	B	L526 W583 N586 W590 L617	L523 W580 N583 W587 L614
BS03	CLA	B	S427 L428 G431 F432 L435 I534 L579 F582 W583	S424 L425 G428 F429 L432 I531 L576 F579 W580
BS04	CLA	B	R685 T686 P687	R682 T683 P684
BS05	CLA	B	S421 S424 W425 L428	S418 S421 W422 L425
BS06	SF4	B	C560 G562 C569 W668	C557 G559 C566 W665
BS07	CLA	B	L679 H683	L676 H680
BS08	CLA	B	A523 W590 F593 F651 H655 Y658 Y718 T721 Y722 F725	A520 W587 F590 F648 H652 Y655 Y715 T718 Y719 F722
BS09	CLA	B	W649 L652 F653 L656 A659	W646 L649 F650 L653 A656
BS10	CLA	B	A659 T660 F662 M663 Y671 W672	A656 T657 F659 M660 Y668 W669
BS11	CLA	B	F6 F9 A29 H30 I57	F3 F6 A26 H27 I54
BS12	CLA	B	H30 F32 Y44 I47 S50 H51 Q54 L55 R175 L335 A338	H27 F29 Y41 I44 S47 H48 Q51 L52 R172 L332 A335
BS13	CLA	B	H30 Q54 I58 W61	H27 Q51 I55 W58
BS14	CLA	B	W61 G64 F67 H68 W71	W58 G61 F64 H65 W68
BS15	CLA	B	N65 A89 H90 N115 S117 T118 S119 V646 W647	N62 A86 H87 N112 S114 T115 S116 V643 W644
BS16	CLA	B	I92 W93 D94 H96 F97 N115 S645 V646 W649	I89 W90 D91 H93 F94 N112 S642 V643 W646
BS17	CLA	B	F48 F52 L149 A153 H157 F162 W168	F45 F49 L146 A150 H154 F159 W165
BS18	CLA	B	W168 S174 H178 F296	W165 S171 H175 F293
BS19	CLA	B	H51 F52 L55 W124 W168 R175 H178 H179 L183 F184	H48 F49 L52 W121 W165 R172 H175 H176 L180 F181
BS20	CLA	B	G129 L130 F142 A190 W191 G193 H194 H197 V198 G209 W210 F213	G126 L127 F139 A187 W188 G190 H191 H194 V195 G206 W207 F210
BS21	CLA	B	A190 T192 G193 H197 L217 P218 L223	A187 T189 G190 H194 L214 P215 L220
BS22	CLA	B	W231 L256 F258 H276 L279 A280 V283 L493	W228 L253 F255 H273 L276 A277 V280 L490
BS23	CLA	B	F258 L269 D273 H276 H277 I281 H352 W494 W498	F255 L266 D270 H273 H274 I278 H349 W491 W495
BS24	CLA	B	F184 S187 W191 H277 H278 I281 I345 V349 P358 Y359	F181 S184 W188 H274 H275 I278 I342 V346 P355 Y356
BS25	CLA	B	L180 F285 A288 M291 Y292	L177 F282 A285 M288 Y289
BS26	CLA	B	H178 A181 V186 H290 T294 F296 I298	H175 A178 V183 H287 T291 F293 I295
BS27	CLA	B	L287 H290 M291 G299 H300	L284 H287 M288 G296 H297
BS28	CLA	B	H300 I305 A308 Q309	H297 I302 A305 Q306
BS29	CLA	B	L306 L316 H320 L323 V408	L303 L313 H317 L320 V405
BS30	CLA	B	A172 R175 L176 H179 Y324 L337 A338 S341 I345	A169 R172 L173 H176 Y321 L334 A335 S338 I342
BS31	CLA	B	S347 L348 Q351 Q377 M384 F388 L528 T532 M584	S344 L345 Q348 Q374 M381 F385 L525 T529 M581
BS32	CLA	B	T344 L348 H352 S355 L356 W498 F510	T341 L345 H349 S352 L353 W495 F507
BS33	CLA	B	W61 T118 S119 A371 T374 H375 Y378 F382 V719 A723	W58 T115 S116 A368 T371 H372 Y375 F379 V716 A720
BS34	CLA	B	W61 T62 S119 W124 V349 M353 Y359 H375 H376	W58 T59 S116 W121 V346 M350 Y356 H372 H373
BS35	CLA	B	A27 H30 D31 L335 F382 G386 H390 Y556 W574 F577	A24 H27 D28 L332 F379 G383 H387 Y553 W571 F574
BS36	CLA	B	L316 R411 H415 L419 H422	L313 R408 H412 L416 H419
BS37	CLA	B	H422 W425	H419 W422
BS38	CLA	B	W425 F429 H433	W422 F426 H430
BS39	CLA	B	G436 V439 H440 V443 K452 I454	G433 V436 H437 V440 K449 I451
BS40	CLA	B	I464 H468 L479 W494 W498	I461 H465 L476 W491 W495
BS41	CLA	B	L478 A489 W494	L475 A486 W491
BS42	CLA	B	Q351 Y354 A461 W463 I464 Q465 L511 H521 V591 Y594 W595	Q348 Y351 A458 W460 I461 Q462 L508 H518 V588 Y591 W592
BS43	CLA	B	F429 L430 P458 V459 F460 A461 F518 H521 H522	F426 L427 P455 V456 F457 A458 F515 H518 H519
BS44	CLA	B	L423 A525 L528 H529	L420 A522 L525 H526
BS45	CLA	B	T19 W23 A680 H683 R693 W694 P698	T16 W20 A677 H680 R690 W691 P695
BS46	CLA	B	F653 I657 F664 H713	F650 I654 F661 H710
BS47	CLA	B	Q309 T310 P311 P312 S315	Q306 T307 P308 P309 S312
BS48	PQN	B	W23 M663 F664 S667 W668 R669 W672 A700 L701 A706	W20 M660 F661 S664 W665 R666 W669 A697 L698 A703
BS49	CLA	B	F460 W463	F457 W460
BS50	ECH	B	I57 L60	I54 L57

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:0009507	chloroplast
GO:0009522	photosystem I
GO:0009535	chloroplast thylakoid membrane
GO:0009579	thylakoid
GO:0016020	membrane

View graph for
Molecular Function

View graph for
Biological Process

View graph for
Cellular Component

External links

PDB	RCSB:6zzx, PDBe:6zzx, PDBj:6zzx
PDBsum	6zzx
PubMed	34462576
UniProt	W8SUA3

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