Structure of PDB 6jo6 Chain B

Receptor sequence

>6jo6B (length=732) Species: 3055 (Chlamydomonas reinhardtii)

HKLFPKFSQGLAQDPTTRRIWYGLAMAHDFESHDGMTEENLYQKIFASHF
GQLSIIFLWTSGNLFHVAWQGNFEQWVTDPVHIRPIAHAIWDPHFGQPAV
EAFTRGGASGPVNISTSGVYQWWYTIGMRTNQDLYVGSVFLALVSAIFLF
AGWLHLQPNFQPSLSWFKDAESRLNHHLSGLFGVSSLAWTGHLVHVAIPE
SRGQHVGWDNFLSVLPHPQGLTPFFTGNWAAYAQSPDTASHVFGTAQGSG
QAILTFLGGFHPQTQSLWLTDMAHHHLAIAVIFIVAGHMYRTNFGIGHRM
QAILEAHTPPSGSLGAGHKGLFDTVNNSLHFQLGLALASVGTITSLVAQH
MYSLPPYAFQAIDFTTQAALYTHHQYIAGFIMCGAFAHGAIFFIRDYDPE
QNKGNVLARMLDHKEALISHLSWVSLFLGFHTLGLYVHNDVMQAFGTPEK
QILIEPVFAQWIQAAHGKALYGFDFLLSSKTSAAFANGQSLWLPGWLDAI
NNNQNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDKK
DFGYSFPCDGPGRGGTCDISAYDAFYLAVFWMLNTIGWVTFYWHWKHLTL
WQGNVAQFDESSTYLMGWLRDYLWLNSSQLINGYNPFGMNSLSVWAWTFL
FGHLIYATGFMFLISWRGYWQELIETLVWAHEKTPLANLVYWKDKPVALS
IVQARLVGLAHFSVGYIFTYAAFLIASTSGRF

3D structure

• PDB: 6jo6 Structure of the green algal photosystem I supercomplex with a decameric light-harvesting complex I.
• Chain: B
• Resolution: 2.9 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	B	L621 L625 W626	L619 L623 W624
BS02	CLA	B	S427 L428 G431 F432 L579 F582 W583	S425 L426 G429 F430 L577 F580 W581
BS03	CLA	B	W649 L652 F653 H655 L656 A659 F662	W647 L650 F651 H653 L654 A657 F660
BS04	CLA	B	V443 F447	V441 F445
BS05	CLA	B	T686 P687	T684 P685
BS06	CLA	B	S421 S424 W425 L428	S419 S422 W423 L426
BS07	CLA	B	L679 H683	L677 H681
BS08	SF4	B	C560 C569	C558 C567
BS09	CLA	B	D442 W583 N586 W590 L617	D440 W581 N584 W588 L615
BS10	CLA	B	Y438 W590 F593 W620 L625 F651 H655 Y658 Y718 T721 Y722 F725	Y436 W588 F591 W618 L623 F649 H653 Y656 Y716 T719 Y720 F723
BS11	CLA	B	A659 T660 F662 M663 I666 Y671 W672	A657 T658 F660 M661 I664 Y669 W670
BS12	CLA	B	F6 A29 H30 F32 I57	F4 A27 H28 F30 I55
BS13	CLA	B	H30 F32 I47 S50 H51 Q54 Q334 L335 A338	H28 F30 I45 S48 H49 Q52 Q332 L333 A336
BS14	CLA	B	H30 Q54 I58 W61	H28 Q52 I56 W59
BS15	CLA	B	L60 G64 F67 H68 Q72	L58 G62 F65 H66 Q70
BS16	CLA	B	N65 A89 H90 N115 S117 S119 W647	N63 A87 H88 N113 S115 S117 W645
BS17	CLA	B	I92 W93 D94 H96 N115 V646	I90 W91 D92 H94 N113 V644
BS18	CLA	B	P95 H96	P93 H94
BS19	CLA	B	F48 F52 A153 L156 H157 F162 W168	F46 F50 A151 L154 H155 F160 W166
BS20	CLA	B	W168 S174 H178 F296	W166 S172 H176 F294
BS21	CLA	B	F48 H51 F52 W124 W168 S174 R175 H178 H179 L183	F46 H49 F50 W122 W166 S172 R173 H176 H177 L181
BS22	CLA	B	M130 D135 F142 A190 W191 H194 H197 V198 G209 W210 F213	M128 D133 F140 A188 W189 H192 H195 V196 G207 W208 F211
BS23	CLA	B	L189 A190 V196 H197 V216 P218 G222 L223	L187 A188 V194 H195 V214 P216 G220 L221
BS24	CLA	B	W231 L256 H276 L279 A280 V283	W229 L254 H274 L277 A278 V281
BS25	CLA	B	F258 G260 L269 D273 H276 H277 I281 H352 W498	F256 G258 L267 D271 H274 H275 I279 H350 W496
BS26	CLA	B	W124 I128 W191 M274 H277 H278 I281 I345 L348 M353 P358 Y359	W122 I126 W189 M272 H275 H276 I279 I343 L346 M351 P356 Y357
BS27	CLA	B	L180 I284 F285 A288 M291 Y292	L178 I282 F283 A286 M289 Y290
BS28	CLA	B	H178 S181 H290 T294 F296	H176 S179 H288 T292 F294
BS29	CLA	B	V287 H290 M291 I298 G299 H300	V285 H288 M289 I296 G297 H298
BS30	CLA	B	H300 I305 A308 H309	H298 I303 A306 H307
BS31	CLA	B	H309 H320 V408	H307 H318 V406
BS32	CLA	B	A172 R175 L176 F324 V327 L337 A338 S341	A170 R173 L174 F322 V325 L335 A336 S339
BS33	CLA	B	S347 L348 Q351 M384 F388 L528 T532	S345 L346 Q349 M382 F386 L526 T530
BS34	CLA	B	T344 L348 H352 S355 L356 F510	T342 L346 H350 S353 L354 F508
BS35	CLA	B	W61 T118 T374 H375 Y378 I379 I719 A723	W59 T116 T372 H373 Y376 I377 I717 A721
BS36	CLA	B	W61 T62 W124 T346 V349 M353 Y359 H375 H376 I379	W59 T60 W122 T344 V347 M351 Y357 H373 H374 I377
BS37	CLA	B	A27 H30 D31 L335 L339 G386 H390 I393 R397 Y556 Y574 F577	A25 H28 D29 L333 L337 G384 H388 I391 R395 Y554 Y572 F575
BS38	CLA	B	S315 L316 V408 R411 M412 H415 L419 H422	S313 L314 V406 R409 M410 H413 L417 H420
BS39	CLA	B	H422 W425	H420 W423
BS40	CLA	B	W425 L428 F429 F432 H433	W423 L426 F427 F430 H431
BS41	CLA	B	G436 V439 H440 M444 K452 I454	G434 V437 H438 M442 K450 I452
BS42	CLA	B	I464 H468 L479 W494 W498	I462 H466 L477 W492 W496
BS43	CLA	B	L478 A486 N489 W494	L476 A484 N487 W492
BS44	CLA	B	Y354 A461 I464 Q465 F510 L511 H521 I524 V591 Y594 W595	Y352 A459 I462 Q463 F508 L509 H519 I522 V589 Y592 W593
BS45	CLA	B	F429 L430 P458 F460 F518 H521 H522	F427 L428 P456 F458 F516 H519 H520
BS46	CLA	B	L423 V426 H529	L421 V424 H527
BS47	CLA	B	W23 H683 W694 K695 P698	W21 H681 W692 K693 P696
BS48	CLA	B	F653 I657 T660 H713	F651 I655 T658 H711
BS49	CLA	B	H309 T310 P311 P312 S315 L316	H307 T308 P309 P310 S313 L314
BS50	PQN	B	W23 M663 F664 S667 W668 R669 W672 A700 L701 A706	W21 M661 F662 S665 W666 R667 W670 A698 L699 A704
BS51	CLA	B	K46 I57 L151 L158	K44 I55 L149 L156
BS52	CLA	B	F460 W463	F458 W461

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

External links

• PDB: RCSB:6jo6, PDBe:6jo6, PDBj:6jo6
• PDBsum: 6jo6
• PubMed: 31182847
• UniProt: P09144|PSAB_CHLRE Photosystem I P700 chlorophyll a apoprotein A2 (Gene Name=psaB)