6KAC

Cryo-EM structure of the C2S2-type PSII-LHCII supercomplex from Chlamydomonas reihardtii


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural insight into light harvesting for photosystem II in green algae.

Sheng, X.Watanabe, A.Li, A.Kim, E.Song, C.Murata, K.Song, D.Minagawa, J.Liu, Z.

(2019) Nat Plants 5: 1320-1330

  • DOI: 10.1038/s41477-019-0543-4
  • Primary Citation of Related Structures:  
    6KAC, 6KAD

  • PubMed Abstract: 
  • Green algae and plants rely on light-harvesting complex II (LHCII) to collect photon energy for oxygenic photosynthesis. In Chlamydomonas reinhardtii, LHCII molecules associate with photosystem II (PSII) to form various supercomplexes, including the C 2 S 2 M 2 L 2 type, which is the largest PSII-LHCII supercomplex in algae and plants that is presently known ...

    Green algae and plants rely on light-harvesting complex II (LHCII) to collect photon energy for oxygenic photosynthesis. In Chlamydomonas reinhardtii, LHCII molecules associate with photosystem II (PSII) to form various supercomplexes, including the C 2 S 2 M 2 L 2 type, which is the largest PSII-LHCII supercomplex in algae and plants that is presently known. Here, we report high-resolution cryo-electron microscopy (cryo-EM) maps and structural models of the C 2 S 2 M 2 L 2 and C 2 S 2 supercomplexes from C. reinhardtii. The C 2 S 2 supercomplex contains an LhcbM1-LhcbM2/7-LhcbM3 heterotrimer in the strongly associated LHCII, and the LhcbM1 subunit assembles with CP43 through two interfacial galactolipid molecules. The loosely and moderately associated LHCII trimers interact closely with the minor antenna complex CP29 to form an intricate subcomplex bound to CP47 in the C 2 S 2 M 2 L 2 supercomplex. A notable direct pathway is established for energy transfer from the loosely associated LHCII to the PSII reaction centre, as well as several indirect routes. Structure-based computational analysis on the excitation energy transfer within the two supercomplexes provides detailed mechanistic insights into the light-harvesting process in green algae.


    Organizational Affiliation

    University of Chinese Academy of Sciences, Beijing, China. liuzf@ibp.ac.cn.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II protein D1A,
CA [auth a]
352Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbA
EC: 1.10.3.9
Membrane Entity: Yes 
UniProt
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II CP47 reaction center proteinB,
DA [auth b]
508Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbB
Membrane Entity: Yes 
UniProt
Find proteins for P37255 (Chlamydomonas reinhardtii)
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center protein Ycf12C [auth V],
EA [auth v]
33Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: ycf12
Membrane Entity: Yes 
UniProt
Find proteins for P50370 (Chlamydomonas reinhardtii)
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II CP43 reaction center proteinD [auth C],
FA [auth c]
461Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbC
Membrane Entity: Yes 
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II D2 proteinE [auth D],
GA [auth d]
352Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbD
EC: 1.10.3.9
Membrane Entity: Yes 
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Cytochrome b559 subunit alphaF [auth E],
HA [auth e]
82Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbE
Membrane Entity: Yes 
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
Cytochrome b559 subunit betaG [auth F],
IA [auth f]
44Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbF
Membrane Entity: Yes 
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center protein HH,
JA [auth h]
88Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbH
Membrane Entity: Yes 
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center protein II,
KA [auth i]
37Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbI
Membrane Entity: Yes 
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Find proteins for P59763 (Chlamydomonas reinhardtii)
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center protein JJ,
LA [auth j]
42Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbJ
Membrane Entity: Yes 
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Find proteins for O19930 (Chlamydomonas reinhardtii)
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center protein KK,
MA [auth k]
46Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbK
Membrane Entity: Yes 
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center protein LL,
NA [auth l]
38Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbL
Membrane Entity: Yes 
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center protein MM,
OA [auth m]
34Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbM
Membrane Entity: Yes 
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
Oxygen-evolving enhancer protein 1, chloroplasticN [auth O],
PA [auth o]
291Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: PSBO
Membrane Entity: Yes 
UniProt
Find proteins for P12853 (Chlamydomonas reinhardtii)
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Entity ID: 15
MoleculeChainsSequence LengthOrganismDetailsImage
Oxygen-evolving enhancer protein 2, chloroplasticO [auth P],
QA [auth p]
245Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: PSBP
Membrane Entity: Yes 
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Find proteins for P11471 (Chlamydomonas reinhardtii)
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Entity ID: 16
MoleculeChainsSequence LengthOrganismDetailsImage
Oxygen-evolving enhancer protein 3, chloroplasticP [auth Q],
RA [auth q]
199Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: PSBQ
Membrane Entity: Yes 
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Find proteins for P12852 (Chlamydomonas reinhardtii)
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Entity ID: 17
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center protein TQ [auth T],
SA [auth t]
31Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbTycf8
Membrane Entity: Yes 
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Find proteins for P37256 (Chlamydomonas reinhardtii)
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Entity ID: 18
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center W protein, chloroplasticR [auth W],
TA [auth w]
115Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbW
Membrane Entity: Yes 
UniProt
Find proteins for Q9SPI9 (Chlamydomonas reinhardtii)
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Entity ID: 19
MoleculeChainsSequence LengthOrganismDetailsImage
4.1 kDa photosystem II subunitS [auth X],
UA [auth x]
101Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: PSBXCHLRE_02g082750v5CHLRE_02g082852v5CHLREDRAFT_182015
Membrane Entity: Yes 
UniProt
Find proteins for A8I846 (Chlamydomonas reinhardtii)
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UniProt GroupA8I846
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Entity ID: 20
MoleculeChainsSequence LengthOrganismDetailsImage
Photosystem II reaction center protein ZT [auth Z],
VA [auth z]
62Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: psbZycf9
Membrane Entity: Yes 
UniProt
Find proteins for P92276 (Chlamydomonas reinhardtii)
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Entity ID: 21
MoleculeChainsSequence LengthOrganismDetailsImage
Chlorophyll a-b binding protein, chloroplasticU [auth N],
WA [auth n]
257Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: LhcII-1.3LHCBM3CHLRE_04g232104v5CHLREDRAFT_195162
UniProt
Find proteins for Q93WL4 (Chlamydomonas reinhardtii)
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Entity ID: 22
MoleculeChainsSequence LengthOrganismDetailsImage
Chlorophyll a-b binding protein, chloroplasticV [auth G],
XA [auth g]
249Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: LhcII-3LHCBM2CHLRE_12g548400v5CHLREDRAFT_184067
UniProt
Find proteins for Q93WE0 (Chlamydomonas reinhardtii)
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Entity ID: 23
MoleculeChainsSequence LengthOrganismDetailsImage
Chlorophyll a-b binding protein CP29W [auth R],
YA [auth r]
280Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: Lhcb4
Membrane Entity: Yes 
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Find proteins for Q93WD2 (Chlamydomonas reinhardtii)
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Entity ID: 24
MoleculeChainsSequence LengthOrganismDetailsImage
Chlorophyll a-b binding protein, chloroplasticX [auth S],
ZA [auth s]
289Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: lhcb5LHCB5CHLRE_16g673650v5CHLREDRAFT_184397
UniProt
Find proteins for Q9FEK6 (Chlamydomonas reinhardtii)
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Entity ID: 25
MoleculeChainsSequence LengthOrganismDetailsImage
Chlorophyll a-b binding protein, chloroplasticY,
AB [auth y]
256Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: LhcII-4LhcbCHLRE_01g066917v5
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Entity ID: 26
MoleculeChainsSequence LengthOrganismDetailsImage
Predicted proteinZ [auth U],
BB [auth u]
178Chlamydomonas reinhardtiiMutation(s): 0 
Gene Names: CPLD45CHLRE_05g243800v5CHLREDRAFT_187371
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Entity ID: 27
MoleculeChainsSequence LengthOrganismDetailsImage
10 kDa photosystem II polypeptide PsbR (potential)CB [auth 0],
AA [auth 1]
25Chlamydomonas reinhardtiiMutation(s): 0 
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Entity ID: 28
MoleculeChainsSequence LengthOrganismDetailsImage
Unindentified Stromal Protein (USP)DB [auth 3],
BA [auth 4]
25Chlamydomonas reinhardtiiMutation(s): 0 
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Small Molecules
Ligands 18 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DGD
Query on DGD

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DD [auth C],
ED [auth C],
FD [auth C],
GJ [auth c],
HD [auth C],
DD [auth C],
ED [auth C],
FD [auth C],
GJ [auth c],
HD [auth C],
HJ [auth c],
ID [auth C],
IJ [auth c],
KJ [auth c],
LJ [auth c]
DIGALACTOSYL DIACYL GLYCEROL (DGDG)
C51 H96 O15
LDQFLSUQYHBXSX-HXXRYREZSA-N
 Ligand Interaction
CHL (Subject of Investigation/LOI)
Query on CHL

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AF [auth G],
AG [auth S],
AL [auth g],
BG [auth S],
BL [auth g],
AF [auth G],
AG [auth S],
AL [auth g],
BG [auth S],
BL [auth g],
CG [auth S],
CK [auth n],
CL [auth g],
DE [auth N],
DL [auth g],
DM [auth s],
EE [auth N],
EM [auth s],
FE [auth N],
FM [auth s],
GE [auth N],
GK [auth n],
HE [auth N],
HK [auth n],
IK [auth n],
JK [auth n],
KK [auth n],
NG [auth Y],
OF [auth R],
PF [auth R],
QF [auth R],
QM [auth y],
RG [auth Y],
RL [auth r],
SE [auth G],
SG [auth Y],
SL [auth r],
TG [auth Y],
TL [auth r],
UG [auth Y],
UM [auth y],
VF [auth S],
VG [auth Y],
VK [auth g],
VM [auth y],
WE [auth G],
WM [auth y],
XE [auth G],
XM [auth y],
YE [auth G],
YL [auth s],
YM [auth y],
ZD [auth N],
ZE [auth G],
ZK [auth g]
CHLOROPHYLL B
C55 H70 Mg N4 O6
MWVCRINOIIOUAU-UYSPMESUSA-M
 Ligand Interaction
CLA (Subject of Investigation/LOI)
Query on CLA

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AC [auth B],
AE [auth N],
AH [auth Y],
AI [auth b],
AJ [auth c],
AC [auth B],
AE [auth N],
AH [auth Y],
AI [auth b],
AJ [auth c],
AM [auth s],
AN [auth y],
BC [auth B],
BE [auth N],
BF [auth G],
BI [auth b],
BJ [auth c],
BM [auth s],
BN [auth y],
CC [auth B],
CE [auth N],
CF [auth G],
CI [auth b],
CM [auth s],
CN [auth y],
DC [auth B],
DF [auth G],
DG [auth S],
DI [auth b],
DK [auth n],
DN [auth y],
EC [auth B],
EF [auth G],
EG [auth S],
EI [auth b],
EK [auth n],
EL [auth g],
FC [auth B],
FF [auth G],
FG [auth S],
FI [auth b],
FK [auth n],
FL [auth g],
GC [auth B],
GG [auth S],
GI [auth b],
GL [auth g],
GM [auth s],
HG [auth S],
HI [auth b],
HL [auth g],
HM [auth s],
IB [auth A],
IE [auth N],
IG [auth S],
II [auth b],
IL [auth g],
IM [auth s],
JB [auth A],
JE [auth N],
JI [auth b],
JM [auth s],
KB [auth A],
KE [auth N],
KM [auth s],
LD [auth D],
LE [auth N],
LF [auth R],
LH [auth a],
LK [auth n],
LM [auth s],
MC [auth C],
MD [auth D],
ME [auth N],
MF [auth R],
MH [auth a],
MK [auth n],
NB [auth A],
NC [auth C],
NF [auth R],
NH [auth a],
NK [auth n],
OC [auth C],
OG [auth Y],
OJ [auth d],
OK [auth n],
OL [auth r],
PC [auth C],
PG [auth Y],
PI [auth c],
PJ [auth d],
PK [auth n],
PL [auth r],
QC [auth C],
QG [auth Y],
QH [auth a],
QI [auth c],
QL [auth r],
RB [auth B],
RC [auth C],
RF [auth R],
RI [auth c],
RM [auth y],
SB [auth B],
SC [auth C],
SF [auth R],
SI [auth c],
SM [auth y],
TB [auth B],
TC [auth C],
TE [auth G],
TI [auth c],
TM [auth y],
UB [auth B],
UC [auth C],
UE [auth G],
UH [auth b],
UI [auth c],
UL [auth r],
VB [auth B],
VC [auth C],
VE [auth G],
VH [auth b],
VI [auth c],
VL [auth r],
WB [auth B],
WC [auth C],
WF [auth S],
WG [auth Y],
WH [auth b],
WI [auth c],
WK [auth g],
XB [auth B],
XC [auth C],
XF [auth S],
XG [auth Y],
XH [auth b],
XI [auth c],
XK [auth g],
YB [auth B],
YC [auth C],
YF [auth S],
YG [auth Y],
YH [auth b],
YI [auth c],
YK [auth g],
ZB [auth B],
ZF [auth S],
ZG [auth Y],
ZH [auth b],
ZI [auth c],
ZL [auth s],
ZM [auth y]
CHLOROPHYLL A
C55 H72 Mg N4 O5
ATNHDLDRLWWWCB-AENOIHSZSA-M
 Ligand Interaction
PHO
Query on PHO

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LB [auth A],
MB [auth A],
OH [auth a],
PH [auth a]
PHEOPHYTIN A
C55 H74 N4 O5
CQIKWXUXPNUNDV-RCBXBCQGSA-N
 Ligand Interaction
SQD
Query on SQD

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KC [auth B],
NI [auth b],
PB [auth A],
SH [auth a]
1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL
C41 H78 O12 S
RVUUQPKXGDTQPG-JUDHQOGESA-N
 Ligand Interaction
LMG
Query on LMG

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GD [auth C],
JJ [auth c],
LC [auth B],
OI [auth b],
QB [auth A],
GD [auth C],
JJ [auth c],
LC [auth B],
OI [auth b],
QB [auth A],
SD [auth D],
TH [auth a],
VD [auth H],
VJ [auth d],
YJ [auth h]
1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE
C45 H86 O10
DCLTVZLYPPIIID-CVELTQQQSA-N
 Ligand Interaction
PL9
Query on PL9

Download Ideal Coordinates CCD File 
OD [auth D],
RJ [auth d]
2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE
C53 H80 O2
FKUYMLZIRPABFK-UHFFFAOYSA-N
 Ligand Interaction
LHG
Query on LHG

Download Ideal Coordinates CCD File 
FH [auth Y],
IN [auth y],
JD [auth C],
KF [auth G],
MG [auth S],
FH [auth Y],
IN [auth y],
JD [auth C],
KF [auth G],
MG [auth S],
MJ [auth c],
NL [auth g],
PD [auth D],
PM [auth s],
QD [auth D],
RD [auth D],
RE [auth N],
SJ [auth d],
TJ [auth d],
UJ [auth d],
UK [auth n],
WD [auth L],
ZJ [auth l]
1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
C38 H75 O10 P
BIABMEZBCHDPBV-MPQUPPDSSA-N
 Ligand Interaction
HEM
Query on HEM

Download Ideal Coordinates CCD File 
TD [auth F],
WJ [auth f]
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
NEX
Query on NEX

Download Ideal Coordinates CCD File 
EH [auth Y],
HN [auth y],
JF [auth G],
LG [auth S],
ML [auth g],
EH [auth Y],
HN [auth y],
JF [auth G],
LG [auth S],
ML [auth g],
OM [auth s],
QE [auth N],
TK [auth n],
UF [auth R],
XL [auth r]
(1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL
C40 H56 O4
PGYAYSRVSAJXTE-OQASCVKESA-N
 Ligand Interaction
XAT
Query on XAT

Download Ideal Coordinates CCD File 
DH [auth Y],
GN [auth y],
IF [auth G],
LL [auth g],
PE [auth N],
DH [auth Y],
GN [auth y],
IF [auth G],
LL [auth g],
PE [auth N],
SK [auth n],
TF [auth R],
WL [auth r]
(3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL
C40 H56 O4
SZCBXWMUOPQSOX-WVJDLNGLSA-N
 Ligand Interaction
LUT
Query on LUT

Download Ideal Coordinates CCD File 
BH [auth Y],
CH [auth Y],
EN [auth y],
FN [auth y],
GF [auth G],
BH [auth Y],
CH [auth Y],
EN [auth y],
FN [auth y],
GF [auth G],
HF [auth G],
JG [auth S],
JL [auth g],
KG [auth S],
KL [auth g],
MM [auth s],
NE [auth N],
NM [auth s],
OE [auth N],
QK [auth n],
RK [auth n]
(3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL
C40 H56 O2
KBPHJBAIARWVSC-NSIPBSJQSA-N
 Ligand Interaction
BCR
Query on BCR

Download Ideal Coordinates CCD File 
AD [auth C],
BD [auth C],
CD [auth C],
CJ [auth c],
DJ [auth c],
AD [auth C],
BD [auth C],
CD [auth C],
CJ [auth c],
DJ [auth c],
EJ [auth c],
FJ [auth c],
HC [auth B],
IC [auth B],
JC [auth B],
KI [auth b],
LI [auth b],
MI [auth b],
ND [auth D],
OB [auth A],
QJ [auth d],
RH [auth a],
UD [auth H],
XJ [auth h],
ZC [auth C]
BETA-CAROTENE
C40 H56
OENHQHLEOONYIE-JLTXGRSLSA-N
 Ligand Interaction
LMU
Query on LMU

Download Ideal Coordinates CCD File 
AK [auth z],
BK [auth z],
GH [auth Y],
JN [auth y],
XD [auth Z],
AK [auth z],
BK [auth z],
GH [auth Y],
JN [auth y],
XD [auth Z],
YD [auth Z]
DODECYL-ALPHA-D-MALTOSIDE
C24 H46 O11
NLEBIOOXCVAHBD-YHBSTRCHSA-N
 Ligand Interaction
OEX
Query on OEX

Download Ideal Coordinates CCD File 
EB [auth A],
HH [auth a]
CA-MN4-O5 CLUSTER
Ca Mn4 O5
SEXWDHMBWJEXOJ-UHFFFAOYSA-N
 Ligand Interaction
BCT
Query on BCT

Download Ideal Coordinates CCD File 
KD [auth D],
NJ [auth d]
BICARBONATE ION
C H O3
BVKZGUZCCUSVTD-UHFFFAOYSA-M
 Ligand Interaction
FE2
Query on FE2

Download Ideal Coordinates CCD File 
FB [auth A],
IH [auth a]
FE (II) ION
Fe
CWYNVVGOOAEACU-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
GB [auth A],
HB [auth A],
JH [auth a],
KH [auth a]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology (China)China2017YFA0503702
Chinese Academy of SciencesChinaXDB27020106
Chinese Academy of SciencesChinaXDB08020302
Chinese Academy of SciencesChinaQYZDB-SSW-SMC005
National Natural Science Foundation of ChinaChina31670749

Revision History  (Full details and data files)

  • Version 1.0: 2019-10-23
    Type: Initial release
  • Version 1.1: 2019-11-20
    Changes: Advisory, Derived calculations
  • Version 1.2: 2019-12-11
    Changes: Database references
  • Version 1.3: 2019-12-25
    Changes: Database references