9K1E | pdb_00009k1e

Structural insights into photosystem I complex of Bryopsis corticulans

• PDB DOI: https://doi.org/10.2210/pdb9K1E/pdb
• EM Map EMD-61973: EMDB EMDataResource

• Classification: PHOTOSYNTHESIS
• Organism(s): Bryopsis corticulans
• Mutation(s): No 


• Deposited: 2024-10-16 Released: 2026-03-04 
• Deposition Author(s): Liu, X.Y., Wang, W.D.
• Funding Organization(s): Chinese Academy of Sciences

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.68 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

PSI-LHCI-LHCII and PSII-LHCII supercomplexes of a siphonous green algae Bryopsis corticulans from intertidal zone

Liu, X.Y.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 24-mer - A2B2C1D1E1F1G1H1I1J1K1L1M1N1O1P1Q1R1S1T1U1V1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 24-mer - A10B2C2D1E1F1G1H1I1J1K1L1M1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 885.82 kDa 
• Atom Count: 54,077 
• Modeled Residue Count: 4,663 
• Deposited Residue Count: 5,447 
• Unique protein chains: 22

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chlorophyll a-b binding protein, chloroplastic	A [auth 0]	245	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8H004 (Bryopsis corticulans) Explore A0A4V8H004  Go to UniProtKB:  A0A4V8H004

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Chlorophyll a-b binding protein, chloroplastic	B [auth 1], E [auth 5]	226	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8GZZ6 (Bryopsis corticulans) Explore A0A4V8GZZ6  Go to UniProtKB:  A0A4V8GZZ6

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Chlorophyll a-b binding protein, chloroplastic	C [auth 2]	256	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8GZZ7 (Bryopsis corticulans) Explore A0A4V8GZZ7  Go to UniProtKB:  A0A4V8GZZ7

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Chlorophyll a-b binding protein, chloroplastic	D [auth 3]	281	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8GZZ8 (Bryopsis corticulans) Explore A0A4V8GZZ8  Go to UniProtKB:  A0A4V8GZZ8

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Chlorophyll a-b binding protein, chloroplastic	F [auth 6]	267	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8H000 (Bryopsis corticulans) Explore A0A4V8H000  Go to UniProtKB:  A0A4V8H000

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Chlorophyll a-b binding protein, chloroplastic	G [auth 7]	264	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8H001 (Bryopsis corticulans) Explore A0A4V8H001  Go to UniProtKB:  A0A4V8H001

Entity ID: 7
Molecule	Chains	Sequence Length	Organism	Details	Image
Chlorophyll a-b binding protein, chloroplastic	H [auth 8], X [auth 4]	248	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8GZZ9 (Bryopsis corticulans) Explore A0A4V8GZZ9  Go to UniProtKB:  A0A4V8GZZ9

Entity ID: 8
Molecule	Chains	Sequence Length	Organism	Details	Image
Chlorophyll a-b binding protein, chloroplastic	I [auth 9]	222	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8H002 (Bryopsis corticulans) Explore A0A4V8H002  Go to UniProtKB:  A0A4V8H002

Entity ID: 9
Molecule	Chains	Sequence Length	Organism	Details	Image
Photosystem I P700 chlorophyll a apoprotein A1	J [auth A]	751	Bryopsis corticulans	Mutation(s): 0  EC: 1.97.1.12
UniProt
Find proteins for A0A4V8GZZ2 (Bryopsis corticulans) Explore A0A4V8GZZ2  Go to UniProtKB:  A0A4V8GZZ2

Entity ID: 10
Molecule	Chains	Sequence Length	Organism	Details	Image
photosystem I	K [auth B]	734	Bryopsis corticulans	Mutation(s): 0  EC: 1.97.1.12
UniProt
Find proteins for A0A4V8H003 (Bryopsis corticulans) Explore A0A4V8H003  Go to UniProtKB:  A0A4V8H003

Entity ID: 11
Molecule	Chains	Sequence Length	Organism	Details	Image
Photosystem I reaction center subunit II, chloroplastic	L [auth D]	198	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8H006 (Bryopsis corticulans) Explore A0A4V8H006  Go to UniProtKB:  A0A4V8H006

Entity ID: 12
Molecule	Chains	Sequence Length	Organism	Details	Image
PsaE	M [auth E]	91	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8H007 (Bryopsis corticulans) Explore A0A4V8H007  Go to UniProtKB:  A0A4V8H007

Entity ID: 13
Molecule	Chains	Sequence Length	Organism	Details	Image
Photosystem I reaction center subunit III	N [auth F]	236	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8H008 (Bryopsis corticulans) Explore A0A4V8H008  Go to UniProtKB:  A0A4V8H008

Entity ID: 14
Molecule	Chains	Sequence Length	Organism	Details	Image
PsaG	O [auth G]	167	Bryopsis corticulans	Mutation(s): 0

Entity ID: 15
Molecule	Chains	Sequence Length	Organism	Details	Image
Photosystem I reaction center subunit VIII	P [auth I]	36	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8H010 (Bryopsis corticulans) Explore A0A4V8H010  Go to UniProtKB:  A0A4V8H010

Entity ID: 16
Molecule	Chains	Sequence Length	Organism	Details	Image
Photosystem I reaction center subunit IX	Q [auth J]	41	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8GZZ3 (Bryopsis corticulans) Explore A0A4V8GZZ3  Go to UniProtKB:  A0A4V8GZZ3

Entity ID: 17
Molecule	Chains	Sequence Length	Organism	Details	Image
PSI subunit V	R [auth L]	204	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8GZZ5 (Bryopsis corticulans) Explore A0A4V8GZZ5  Go to UniProtKB:  A0A4V8GZZ5

Entity ID: 18
Molecule	Chains	Sequence Length	Organism	Details	Image
Photosystem I iron-sulfur center	S [auth C]	81	Bryopsis corticulans	Mutation(s): 0  EC: 1.97.1.12
UniProt
Find proteins for A0A4V8H005 (Bryopsis corticulans) Explore A0A4V8H005  Go to UniProtKB:  A0A4V8H005

Entity ID: 19
Molecule	Chains	Sequence Length	Organism	Details	Image
PsaK	T [auth K]	123	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8GZZ4 (Bryopsis corticulans) Explore A0A4V8GZZ4  Go to UniProtKB:  A0A4V8GZZ4

Entity ID: 20
Molecule	Chains	Sequence Length	Organism	Details	Image
Photosystem I reaction center subunit XII	U [auth M]	32	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A1L2EDU0 (Lambia antarctica) Explore A0A1L2EDU0  Go to UniProtKB:  A0A1L2EDU0

Entity ID: 21
Molecule	Chains	Sequence Length	Organism	Details	Image
PsaO	V [auth O]	137	Bryopsis corticulans	Mutation(s): 0

Entity ID: 22
Molecule	Chains	Sequence Length	Organism	Details	Image
PsaH	W [auth H]	133	Bryopsis corticulans	Mutation(s): 0
UniProt
Find proteins for A0A4V8H009 (Bryopsis corticulans) Explore A0A4V8H009  Go to UniProtKB:  A0A4V8H009

Small Molecules

Ligands 12 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DGD (Subject of Investigation/LOI)	VK [auth B]	DIGALACTOSYL DIACYL GLYCEROL (DGDG) C51 H96 O15 LDQFLSUQYHBXSX-HXXRYREZSA-N
CHL (Subject of Investigation/LOI)	AD [auth 5], AF [auth 7], AN [auth 4], BG [auth 8], BN [auth 4], CA [auth 0], CB [auth 1], CC [auth 3], CE [auth 6], DA [auth 0], DC [auth 3], DD [auth 5], ED [auth 5], EE [auth 6], FD [auth 5], GC [auth 3], GG [auth 9], GN [auth 4], IC [auth 3], IN [auth 4], JB [auth 2], KG [auth 9], LD [auth 5], LG [auth 9], MB [auth 2], ME [auth 6], MF [auth 8], NB [auth 2], OB [auth 2], OE [auth 7], OF [auth 8], PB [auth 2], PE [auth 7], QD [auth 6], RA [auth 1], RD [auth 6], RF [auth 8], RG [auth 9], SE [auth 7], SF [auth 8], TE [auth 7], TF [auth 8], UA [auth 1], UB [auth 2], UD [auth 6], UE [auth 7], UF [auth 8], UM [auth 4], VA [auth 1], VD [auth 6], VM [auth 4], WA [auth 1], WD [auth 6], XD [auth 6], Y [auth 0], YM [auth 4], Z [auth 0], ZF [auth 8], ZM [auth 4]	CHLOROPHYLL B C55 H70 Mg N4 O6 MWVCRINOIIOUAU-UYSPMESUSA-M
CL0 (Subject of Investigation/LOI)	WI [auth A]	CHLOROPHYLL A ISOMER C55 H72 Mg N4 O5 VIQFHHZSLDFWDU-DVXFRRMCSA-M
CLA (Subject of Investigation/LOI)	AA [auth 0], AB [auth 1], AE [auth 6], AG [auth 8], AH [auth A], AI [auth A], AJ [auth B], AK [auth B], AL [auth F], AM [auth K], BA [auth 0], BB [auth 1], BD [auth 5], BE [auth 6], BF [auth 7], BH [auth A], BI [auth A], BK [auth B], BL [auth F], BM [auth K], CD [auth 5], CF [auth 7], CH [auth A], CI [auth A], CJ [auth B], CK [auth B], CN [auth 4], DB [auth 1], DE [auth 6], DF [auth 7], DH [auth A], DI [auth A], DJ [auth B], DK [auth B], DL [auth G], DN [auth 4], EA [auth 0], EC [auth 3], EF [auth 7], EH [auth A], EI [auth A], EJ [auth B], EK [auth B], EL [auth G], EN [auth 4], FA [auth 0], FC [auth 3], FE [auth 6], FH [auth A], FI [auth A], FJ [auth B], FK [auth B], FL [auth G], FM [auth O], FN [auth 4], GA [auth 0], GD [auth 5], GE [auth 6], GH [auth A], GI [auth A], GJ [auth B], GK [auth B], HA [auth 0], HC [auth 3], HD [auth 5], HE [auth 6], HG [auth 9], HH [auth A], HI [auth A], HJ [auth B], HK [auth B], HN [auth 4], IA [auth 0], ID [auth 5], IG [auth 9], IH [auth A], II [auth A], IJ [auth B], IK [auth B], IM [auth O], JA [auth 0], JC [auth 3], JD [auth 5], JG [auth 9], JH [auth A], JI [auth A], JJ [auth B], JK [auth B], JM [auth O], KA [auth 0], KB [auth 2], KC [auth 3], KD [auth 5], KH [auth A], KI [auth A], KJ [auth B], KK [auth B], KM [auth O], LB [auth 2], LC [auth 3], LH [auth A], LJ [auth B], LK [auth B], LL [auth J], MC [auth 3], MD [auth 5], MG [auth 9], MH [auth A], MJ [auth B], MK [auth B], NC [auth 3], NG [auth 9], NH [auth A], NJ [auth B], NK [auth B], NM [auth O], OC [auth 3], OG [auth 9], OH [auth A], OJ [auth B], OL [auth L], PC [auth 3], PF [auth 8], PG [auth 9], PH [auth A], PJ [auth B], PL [auth L], PM [auth H], QA [auth 0], QB [auth 2], QC [auth 3], QE [auth 7], QF [auth 8], QG [auth 9], QH [auth A], QJ [auth B], QL [auth L], QM [auth H], RB [auth 2], RE [auth 7], RH [auth A], RJ [auth B], RM [auth H], SA [auth 1], SB [auth 2], SD [auth 6], SH [auth A], SI [auth A], SJ [auth B], SM [auth H], TA [auth 1], TB [auth 2], TD [auth 6], TH [auth A], TJ [auth B], TL [auth L], TM [auth H], UH [auth A], UJ [auth B], VB [auth 2], VE [auth 7], VF [auth 8], VH [auth A], VJ [auth B], WE [auth 7], WF [auth 8], WH [auth A], WJ [auth B], WM [auth 4], XA [auth 1], XE [auth 7], XF [auth 8], XG [auth A], XH [auth A], XI [auth A], XJ [auth B], XM [auth 4], YA [auth 1], YD [auth 6], YE [auth 7], YF [auth 8], YG [auth A], YH [auth A], YJ [auth B], YL [auth K], ZA [auth 1], ZD [auth 6], ZE [auth 7], ZG [auth A], ZH [auth A], ZI [auth B], ZJ [auth B], ZL [auth K]	CHLOROPHYLL A C55 H72 Mg N4 O5 ATNHDLDRLWWWCB-AENOIHSZSA-M
SQD (Subject of Investigation/LOI)	PA [auth 0]	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL C41 H78 O12 S RVUUQPKXGDTQPG-JUDHQOGESA-N
LMG (Subject of Investigation/LOI)	AC [auth 2], DM [auth M], HM [auth O], KL [auth J], NL [auth J], OM [auth O], VI [auth A], WC [auth 3], WG [auth 9], YI [auth A]	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE C45 H86 O10 DCLTVZLYPPIIID-CVELTQQQSA-N
0UR (Subject of Investigation/LOI)	DG [auth 8], EG [auth 8], FB [auth 1], GB [auth 1], HF [auth 7], JE [auth 6], KE [auth 6], KN [auth 4], LM [auth O], LN [auth 4], MA [auth 0], NA [auth 0], ND [auth 5], OD [auth 5], TC [auth 3], TG [auth 9], UG [auth 9], XB [auth 2], YB [auth 2]	Siphonein C52 H76 O5 UERRVASYDCUNEJ-DHYZAJTQSA-N
LHG (Subject of Investigation/LOI)	BC [auth 2], FG [auth 8], HB [auth 1], IB [auth 1], IL [auth I], JF [auth 7], KF [auth 7], LE [auth 6], LF [auth 7], MI [auth A], NF [auth 8], NI [auth A], OA [auth 0], PD [auth 5], UI [auth A], VC [auth 3], VG [auth 9], VL [auth L], XC [auth 3], XK [auth B], YK [auth B], ZB [auth 2], ZC [auth 3]	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE C38 H75 O10 P BIABMEZBCHDPBV-MPQUPPDSSA-N
0IE (Subject of Investigation/LOI)	IF [auth 7], UC [auth 3]	Siphonaxanthin C40 H56 O4 SUCKEYMKNGZJHK-ZARIWKGHSA-N
8CT (Subject of Investigation/LOI)	CG [auth 8], CL [auth F], CM [auth K], EB [auth 1], EM [auth M], FF [auth 7], GF [auth 7], GL [auth G], GM [auth O], HL [auth I], IE [auth 6], JL [auth J], JN [auth 4], LA [auth 0], ML [auth J], MM [auth O], NE [auth 6], OI [auth A], PI [auth A], PK [auth B], QI [auth A], QK [auth B], RC [auth 3], RI [auth A], RK [auth B], RL [auth L], SC [auth 3], SG [auth 9], SK [auth B], SL [auth L], TI [auth A], TK [auth B], UK [auth B], UL [auth L], WB [auth 2], WK [auth B], YC [auth 3], ZK [auth F]	(6'R,11cis,11'cis,13cis,15cis)-4',5'-didehydro-5',6'-dihydro-beta,beta-carotene C40 H56 ANVAOWXLWRTKGA-GZSHKXEASA-N
PQN (Subject of Investigation/LOI)	LI [auth A], OK [auth B]	PHYLLOQUINONE C31 H46 O2 MBWXNTAXLNYFJB-NKFFZRIASA-N
SF4 (Subject of Investigation/LOI)	BJ [auth B], WL [auth C], XL [auth C]	IRON/SULFUR CLUSTER Fe4 S4 LJBDFODJNLIPKO-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.68 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.19.2_4158:
RECONSTRUCTION	CryoSMART

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-03-04 
Deposition Author(s): Liu, X.Y., Wang, W.D.

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Funding Organization	Location	Grant Number
Chinese Academy of Sciences	China	--

Revision History  

• Version 1.0: 2026-03-04
  Type: Initial release