Structure of PDB 7dz8 Chain B

Receptor sequence

>7dz8B (length=733) Species: 3055 (Chlamydomonas reinhardtii)

ATKLFPKFSQGLAQDPTTRRIWYGLAMAHDFESHDGMTEENLYQKIFASH
FGQLSIIFLWTSGNLFHVAWQGNFEQWVTDPVHIRPIAHAIWDPHFGQPA
VEAFTRGGASGPVNISTSGVYQWWYTIGMRTNQDLYVGSVFLALVSAIFL
FAGWLHLQPNFQPSLSWFKDAESRLNHHLSGLFGVSSLAWTGHLVHVAIP
ESRGQHVGWDNFLSVLPHPQGLTPFFTGNWAAYAQSPDTASHVFGTAQGS
GQAILTFLGGFHPQTQSLWLTDMAHHHLAIAVIFIVAGHMYRTNFGIGHR
MQAILEAHTPPSGSLGAGHKGLFDTVNNSLHFQLGLALASVGTITSLVAQ
HMYSLPPYAFQAIDFTTQAALYTHHQYIAGFIMCGAFAHGAIFFIRDYDP
EQNKGNVLARMLDHKEALISHLSWVSLFLGFHTLGLYVHNDVMQAFGTPE
KQILIEPVFAQWIQAAHGKALYGFDFLLSSKTSAAFANGQSLWLPGWLDA
INNNQNSLFLTIGPGDFLVHHAIALGLHTTTLILVKGALDARGSKLMPDK
KDFGYSFPCDGPGRGGTCDISAYDAFYLAVFWMLNTIGWVTFYWHWKHLT
LWQGNVAQFDESSTYLMGWLRDYLWLNSSQLINGYNPFGMNSLSVWAWTF
LFGHLIYATGFMFLISWRGYWQELIETLVWAHEKTPLANLVYWKDKPVAL
SIVQARLVGLAHFSVGYIFTYAAFLIASTSGRF

3D structure

• PDB: 7dz8 Structural basis of LhcbM5-mediated state transitions in green algae.
• Chain: B
• Resolution: 3.16 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	B	L621 W626	L620 W625
BS02	CLA	B	S427 L428 G431 F432 L533 I534 L579 F582 W583	S426 L427 G430 F431 L532 I533 L578 F581 W582
BS03	CLA	B	W649 L652 F653 H655 L656 A659	W648 L651 F652 H654 L655 A658
BS04	CLA	B	W681 T686 P687	W680 T685 P686
BS05	CLA	B	S421 S424 W425 L428	S420 S423 W424 L427
BS06	CLA	B	L679 H683 T686 V692	L678 H682 T685 V691
BS07	SF4	B	C560 G562 C569 I703	C559 G561 C568 I702
BS08	CLA	B	V439 D442 W583 N586 W590 L617	V438 D441 W582 N585 W589 L616
BS09	CLA	B	Y438 W590 F593 W620 S629 F651 H655 Y658 Y718 T721 Y722 F725	Y437 W589 F592 W619 S628 F650 H654 Y657 Y717 T720 Y721 F724
BS10	CLA	B	A659 T660 M663 I666 S667 Y671 W672	A658 T659 M662 I665 S666 Y670 W671
BS11	CLA	B	F6 F9 A29 H30 I57	F5 F8 A28 H29 I56
BS12	CLA	B	H30 Y44 I47 S50 H51 Q54 L55 R175 L331 H332 Q334 L335 A338	H29 Y43 I46 S49 H50 Q53 L54 R174 L330 H331 Q333 L334 A337
BS13	CLA	B	H30 Q54 I58 W61 F382	H29 Q53 I57 W60 F381
BS14	CLA	B	L60 G64 F67 H68 W71 Q72 H90	L59 G63 F66 H67 W70 Q71 H89
BS15	CLA	B	N65 A89 H90 S117 S119 V646 W647	N64 A88 H89 S116 S118 V645 W646
BS16	CLA	B	I92 W93 D94 H96 F105 N115 V646 W649	I91 W92 D93 H95 F104 N114 V645 W648
BS17	CLA	B	P95 H96	P94 H95
BS18	CLA	B	F48 F52 A153 L156 H157 F162 W168	F47 F51 A152 L155 H156 F161 W167
BS19	CLA	B	W168 S174 H178 F296	W167 S173 H177 F295
BS20	CLA	B	F48 H51 F52 L55 W124 W168 F169 R175 H178 H179 L183 F184	F47 H50 F51 L54 W123 W167 F168 R174 H177 H178 L182 F183
BS21	CLA	B	G129 V138 G139 F142 A190 W191 H194 H197 V198 G209 W210 F213	G128 V137 G138 F141 A189 W190 H193 H196 V197 G208 W209 F212
BS22	CLA	B	L189 A190 T192 G193 H197 L217 P218 L223	L188 A189 T191 G192 H196 L216 P217 L222
BS23	CLA	B	W231 L256 F258 H276 L279 A280 V283 L493	W230 L255 F257 H275 L278 A279 V282 L492
BS24	CLA	B	F258 D273 H276 H277 I281 H352 L356 W494 W498	F257 D272 H275 H276 I280 H351 L355 W493 W497
BS25	CLA	B	W124 I128 S187 S188 W191 M274 H277 H278 I345 L348 P358 Y359	W123 I127 S186 S187 W190 M273 H276 H277 I344 L347 P357 Y358
BS26	CLA	B	L180 F184 F285 A288 M291 Y292	L179 F183 F284 A287 M290 Y291
BS27	CLA	B	H178 S181 H290 T294 F296	H177 S180 H289 T293 F295
BS28	CLA	B	H290 M291 I298 G299 H300	H289 M290 I297 G298 H299
BS29	CLA	B	H300 I305 A308 H309	H299 I304 A307 H308
BS30	CLA	B	L306 H309 L316 H320 V408 M412	L305 H308 L315 H319 V407 M411
BS31	CLA	B	A172 R175 L176 M302 F324 A338 S341 I345	A171 R174 L175 M301 F323 A337 S340 I344
BS32	CLA	B	S347 L348 Q351 Q377 M384 F388 L528 T531 T532 M584	S346 L347 Q350 Q376 M383 F387 L527 T530 T531 M583
BS33	CLA	B	L348 Q351 H352 S355 L356 F510	L347 Q350 H351 S354 L355 F509
BS34	CLA	B	W61 T118 A371 T374 H375 I379 F382 I719 A723	W60 T117 A370 T373 H374 I378 F381 I718 A722
BS35	CLA	B	W61 T62 S119 G120 W124 S187 A190 T346 V349 M353 Y359 L372 H375 H376	W60 T61 S118 G119 W123 S186 A189 T345 V348 M352 Y358 L371 H374 H375
BS36	CLA	B	A27 H30 D31 L335 F382 G386 H390 I393 R397 Y556 Y574 F577 F720	A26 H29 D30 L334 F381 G385 H389 I392 R396 Y555 Y573 F576 F719
BS37	CLA	B	S315 L316 V408 R411 M412 H415 L419 H422	S314 L315 V407 R410 M411 H414 L418 H421
BS38	CLA	B	H422 W425	H421 W424
BS39	CLA	B	W425 L428 F429 F432 H433	W424 L427 F428 F431 H432
BS40	CLA	B	G436 L437 V439 H440 M444 K452	G435 L436 V438 H439 M443 K451
BS41	CLA	B	W463 I464 H468 L478 L479 W494 W498	W462 I463 H467 L477 L478 W493 W497
BS42	CLA	B	N489 W494	N488 W493
BS43	CLA	B	I464 Q465 F510 L511 H521 I524 V591 Y594 W595	I463 Q464 F509 L510 H520 I523 V590 Y593 W594
BS44	CLA	B	F429 L430 P458 F460 A461 F518 H521 H522	F428 L429 P457 F459 A460 F517 H520 H521
BS45	CLA	B	L423 V426 H529	L422 V425 H528
BS46	CLA	B	T19 W23 H683 Y693 W694 P698	T18 W22 H682 Y692 W693 P697
BS47	CLA	B	W23 F653 L656 T660 F664 L701 V709 A712 H713	W22 F652 L655 T659 F663 L700 V708 A711 H712
BS48	CLA	B	H309 T310 P311 P312 S315 L316	H308 T309 P310 P311 S314 L315
BS49	PQN	B	W23 M663 F664 S667 W668 R669 W672 A700 L701 A706	W22 M662 F663 S666 W667 R668 W671 A699 L700 A705
BS50	CLA	B	F460 W463	F459 W462
BS51	CLA	B	P687 L688	P686 L687

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:7dz8, PDBe:7dz8, PDBj:7dz8
• PDBsum: 7dz8
• PubMed: 34239095
• UniProt: P09144|PSAB_CHLRE Photosystem I P700 chlorophyll a apoprotein A2 (Gene Name=psaB)