Structure of PDB 6ijj Chain A

Receptor sequence

>6ijjA (length=741) Species: 3055 (Chlamydomonas reinhardtii)

KKVKIAVDRNPVETSFEKWAKPGHFSRTLSKGPNTTTWIWNLHADAHDFD
SHTSDLEEISRKVFSAHFGQLGIIFIWLSGMYFHGARFSNYEAWLSDPTH
IKPSAQVVWPIVGQEILNGDVGGGFQGIQITSGFFQLWRASGITSELQLY
TTAIGGLVMAAAMFFAGWFHYHKAAPKLEWFQNVESMLNHHLGGLLGLGS
LAWAGHQIHVSLPVNKLLDAGVDPKEIPLPHDLLLNRAIMADLYPSFAKG
IAPFFTLNWSEYSDFLTFKGGLNPVTGGLWLSDTAHHHVAIAVLFLVAGH
MYRTNWGIGHSMKEILEAHRGPFTGEGHVGLYEILTTSWHAQLAINLALF
GSLSIIVAHHMYAMPPYPYLATDYGTQLSLFTHHTWIGGFCIVGAGAHAA
IFMVRDYDPTNNYNNLLDRVIRHRDAIISHLNWVCIFLGFHSFGLYIHND
TMSALGRPQDMFSDTAIQLQPVFAQWIQNTHFLAPQLTAPNALAATSLTW
GGDLVAVGGKVAMMPISLGTSDFMVHHIHAFTIHVTVLILLKGVLFARSS
RLIPDKANLGFRFPCDGPGRGGTCQVSAWDHVFLGLFWMYNSLSIVIFHF
SWKMQSDVWGTVTASGVSHITGGNFAQSANTINGWLRDFLWAQSSQVIQS
YGSALSAYGLIFLGAHFVWAFSLMFLFSGRGYWQELIESIVWAHNKLKVA
PAIQPRALSITQGRAVGVAHYLLGGIATTWSFFLARIISVG

3D structure

• PDB: 6ijj Antenna arrangement and energy transfer pathways of a green algal photosystem-I-LHCI supercomplex.
• Chain: A
• Resolution: 2.89 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	I538 Y600 N601 I605 F608 W645 L650 S654 F672 H676 W679 Y731 G735 T738 T739 F742	I528 Y590 N591 I595 F598 W635 L640 S644 F662 H666 W669 Y721 G725 T728 T729 F732
BS02	CLA	A	F677 A680 F681 L683 M684 Y692 W693 L696	F667 A670 F671 L673 M674 Y682 W683 L686
BS03	CLA	A	F453 I457 D460 F541 W598 N601 I642 W679 Y731	F443 I447 D450 F531 W588 N591 I632 W669 Y721
BS04	CLA	A	P32 I49 L52 H53	P22 I39 L42 H43
BS05	CLA	A	W29 H34 F35 H53 A56 H57 G79 I83	W19 H24 F25 H43 A46 H47 G69 I73
BS06	CLA	A	H57 V73 A76 H77 Q80 F85 L88 W349 H350 L353 N356	H47 V63 A66 H67 Q70 F75 L78 W339 H340 L343 N346
BS07	CLA	A	H57 Q80 I83 I84 W87 F360 C401	H47 Q70 I73 I74 W77 F350 C391
BS08	CLA	A	G90 F93 H94 F98 W119	G80 F83 H84 F88 W109
BS09	CLA	A	W87 M91 A115 Q116 I140 T141 S142 Y668	W77 M81 A105 Q106 I130 T131 S132 Y658
BS10	CLA	A	Q116 V118 W119 Q124 L127 L670	Q106 V108 W109 Q114 L117 L660
BS11	CLA	A	I15 F78 A176 F179 H180 A184 W190	I5 F68 A166 F169 H170 A174 W180
BS12	CLA	A	T24 S25 F26 K28 W29 H34 K72 S75 G177 W178 Y181 H182	T14 S15 F16 K18 W19 H24 K62 S65 G167 W168 Y171 H172
BS13	CLA	A	V13 K14 I15 W190 S196 H200 T314	V3 K4 I5 W180 S186 H190 T304
BS14	CLA	A	F74 H77 F78 M169 W190 F191 M197 H200 H201 L205	F64 H67 F68 M159 W180 F181 M187 H190 H191 L195
BS15	CLA	A	S151 G152 I153 Q158 T162 A212 W213 H216 H219 V220 P240 L244	S141 G142 I143 Q148 T152 A202 W203 H206 H209 V210 P230 L234
BS16	CLA	A	L211 G215 H219 L244 R247 F257 G260 I261 Y272	L201 G205 H209 L234 R237 F247 G250 I251 Y262
BS17	CLA	A	Q158 T161 L239 H241	Q148 T151 L229 H231
BS18	CLA	A	W269 Y272 L276 H296 V299 A300 V303 N501	W259 Y262 L266 H286 V289 A290 V293 N491
BS19	CLA	A	F278 D293 T294 H296 H297 I301 H370 M374 T506	F268 D283 T284 H286 H287 I291 H360 M364 T496
BS20	CLA	A	L206 S210 W213 H297 H298 I301 L363 V367 P376 Y377	L196 S200 W203 H287 H288 I291 L353 V357 P366 Y367
BS21	CLA	A	H200 L208 H310 T314 W316	H190 L198 H300 T304 W306
BS22	CLA	A	L202 F305 A308 M311 Y312 M322	L192 F295 A298 M301 Y302 M312
BS23	CLA	A	V307 M311 I318 G319 H320	V297 M301 I308 G309 H310
BS24	CLA	A	H320 I325 A328 H329	H310 I315 A318 H319
BS25	CLA	A	L326 H329 H338 L341 L426	L316 H319 H328 L331 L416
BS26	CLA	A	V194 M197 L198 H201 M322 L345 T346 S348 W349 Q352 I355 N356 L359	V184 M187 L188 H191 M312 L335 T336 S338 W339 Q342 I345 N346 L349
BS27	CLA	A	I365 I366 H369 I402 I543 T546 V547 S602	I355 I356 H359 I392 I533 T536 V537 S592
BS28	CLA	A	L359 L363 I366 H370 A373 M374 T506 S507 W510	L349 L353 I356 H360 A363 M364 T496 S497 W500
BS29	CLA	A	W87 M91 S142 S389 T392 H393 W396 I397 I736 W740	W77 M81 S132 S379 T382 H383 W386 I387 I726 W730
BS30	CLA	A	G143 F144 L147 F360 L363 S364 V367 Y377 L390 H393 H394	G133 F134 L137 F350 L353 S354 V357 Y367 L380 H383 H384
BS31	CLA	A	H53 A54 H57 D58 L353 L357 F400 G404 H408 F571 R572 W589	H43 A44 H47 D48 L343 L347 F390 G394 H398 F561 R562 W579
BS32	CLA	A	R429 V430 H433 I437 H440	R419 V420 H423 I427 H430
BS33	CLA	A	H440 W443	H430 W433
BS34	CLA	A	W443 F447 F450 H451	W433 F437 F440 H441
BS35	CLA	A	F450 G454 I457 H458 M462 R467 D470 F472	F440 G444 I447 H448 M452 R457 D460 F462
BS36	CLA	A	W486 H491 A494 T498	W476 H481 A484 T488
BS37	CLA	A	F278 L497 T498 P500 N501	F268 L487 T488 P490 N491
BS38	CLA	A	H369 Y372 F483 A484 I487 Q488 W510 L528 H536 H539 V606 H609	H359 Y362 F473 A474 I477 Q478 W500 L518 H526 H529 V596 H599
BS39	CLA	A	F447 L448 P481 F483 A484 F533 H536 H537 A540	F437 L438 P471 F473 A474 F523 H526 H527 A530
BS40	CLA	A	I437 L441 I543 H544 V547	I427 L431 I533 H534 V537
BS41	CLA	A	I700 A703 H704	I690 A693 H694
BS42	CLA	A	W50 F681 L718 V726 H730 L733	W40 F671 L708 V716 H720 L723
BS43	CLA	A	W443 I446	W433 I436
BS44	PQN	A	M684 F685 S688 W693 A717 L718	M674 F675 S678 W683 A707 L708
BS45	CLA	A	H329 P332 F333	H319 P322 F323
BS46	SF4	A	C575 G577 C584	C565 G567 C574
BS47	CLA	A	L670 L673 H676 F677 A680	L660 L663 H666 F667 A670
BS48	CLA	A	L646 L650	L636 L640
BS49	CLA	A	I446 G449 F450 F453 F541 L548 F597 W598	I436 G439 F440 F443 F531 L538 F587 W588
BS50	CLA	A	T461 A464 L465	T451 A454 L455
BS51	CLA	A	T46 W50 H704 P711 P715	T36 W40 H694 P701 P705

Gene Ontology

Molecular Function

• GO:0000287 magnesium ion binding
• GO:0005515 protein 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:6ijj, PDBe:6ijj, PDBj:6ijj
• PDBsum: 6ijj
• PubMed: 30850819
• UniProt: P12154|PSAA_CHLRE Photosystem I P700 chlorophyll a apoprotein A1 (Gene Name=psaA)