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- PDB-8zee: Cryo-EM structure of an intermediate-state PSII-PRF2' complex dur... -

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Basic information

Entry
Database: PDB / ID: 8zee
TitleCryo-EM structure of an intermediate-state PSII-PRF2' complex during the process of photosystem II repair
Components
  • (Cytochrome b559 subunit ...) x 2
  • (Photosystem II ...) x 12
  • 4.1 kDa photosystem II subunit
  • Chains: 1
KeywordsPHOTOSYNTHESIS
Function / homology
Function and homology information


oxygen evolving activity / photosystem II stabilization / photosystem II / photosystem II reaction center / oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor / photosynthetic electron transport chain / response to herbicide / photosystem II / chlorophyll binding / photosynthesis, light reaction ...oxygen evolving activity / photosystem II stabilization / photosystem II / photosystem II reaction center / oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor / photosynthetic electron transport chain / response to herbicide / photosystem II / chlorophyll binding / photosynthesis, light reaction / electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity / phosphate ion binding / chloroplast thylakoid membrane / photosynthetic electron transport in photosystem II / photosynthesis / electron transfer activity / protein stabilization / iron ion binding / heme binding / metal ion binding
Similarity search - Function
Photosystem II reaction centre protein Ycf12 / Photosystem II complex subunit Ycf12 / Photosystem II reaction centre M protein (PsbM) / Photosystem II PsbM superfamily / Photosystem II PsbM / Photosystem II PsbZ, reaction centre / Photosystem II PsbZ superfamily / YCF9 / Photosystem II PsbX / Photosystem II reaction centre X protein (PsbX) ...Photosystem II reaction centre protein Ycf12 / Photosystem II complex subunit Ycf12 / Photosystem II reaction centre M protein (PsbM) / Photosystem II PsbM superfamily / Photosystem II PsbM / Photosystem II PsbZ, reaction centre / Photosystem II PsbZ superfamily / YCF9 / Photosystem II PsbX / Photosystem II reaction centre X protein (PsbX) / Photosystem II CP43 reaction centre protein superfamily / Photosystem II PsbT / Photosystem II PsbL / Photosystem II PsbL superfamily / Photosystem II PsbT superfamily / Photosystem II reaction centre T protein / PsbL protein / Photosystem II CP43 reaction centre protein / Photosystem II PsbK / Photosystem II PsbK superfamily / Photosystem II 4 kDa reaction centre component / Photosystem II CP47 reaction centre protein / Photosystem II PsbI / Photosystem II PsbI superfamily / Photosystem II reaction centre I protein (PSII 4.8 kDa protein) / Photosystem II reaction centre protein H / Photosystem II protein D1 / Photosystem II D2 protein / Photosystem II cytochrome b559, conserved site / Photosystem II cytochrome b559, alpha subunit / Photosystem II cytochrome b559, beta subunit / Photosystem II cytochrome b559, N-terminal / Photosystem II cytochrome b559, alpha subunit, lumenal region / Photosystem II reaction centre protein H superfamily / Photosystem II cytochrome b559, alpha subunit superfamily / Cytochrome b559, alpha (gene psbE) and beta (gene psbF)subunits / Lumenal portion of Cytochrome b559, alpha (gene psbE) subunit / Photosystem II 10 kDa phosphoprotein / Cytochrome b559 subunits heme-binding site signature. / Photosystem antenna protein-like / Photosystem antenna protein-like superfamily / Photosystem II protein / Photosynthetic reaction centre, L/M / Photosystem II protein D1/D2 superfamily / Photosynthetic reaction centre protein / Photosynthetic reaction center proteins signature.
Similarity search - Domain/homology
BETA-CAROTENE / BICARBONATE ION / CHLOROPHYLL A / DIGALACTOSYL DIACYL GLYCEROL (DGDG) / : / PROTOPORPHYRIN IX CONTAINING FE / 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE / 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE / PHEOPHYTIN A / Chem-PL9 ...BETA-CAROTENE / BICARBONATE ION / CHLOROPHYLL A / DIGALACTOSYL DIACYL GLYCEROL (DGDG) / : / PROTOPORPHYRIN IX CONTAINING FE / 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE / 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE / PHEOPHYTIN A / Chem-PL9 / Chem-SQD / RRR-ALPHA-TOCOPHERYLQUINONE / Photosystem II CP47 reaction center protein / Uncharacterized protein / Uncharacterized protein / Photosystem II D2 protein / Photosystem II protein D1 / Photosystem II CP43 reaction center protein / Photosystem II reaction center protein K / Photosystem II reaction center protein H / Photosystem II reaction center protein L / Photosystem II reaction center protein T / Cytochrome b559 subunit alpha / Photosystem II reaction center protein Psb30 / Photosystem II reaction center protein I / Photosystem II reaction center protein Z / Photosystem II reaction center protein M / Cytochrome b559 subunit beta
Similarity search - Component
Biological speciesChlamydomonas reinhardtii (plant)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsLi, A. / Liu, Z.
Funding support China, 3items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)31925024 China
Chinese Academy of SciencesYSBR-015 China
Chinese Academy of SciencesXDB37020101 China
CitationJournal: Nat Commun / Year: 2024
Title: Structural basis for an early stage of the photosystem II repair cycle in Chlamydomonas reinhardtii
Authors: Li, A. / You, T. / Pang, X. / Wang, Y. / Tian, L. / Li, X. / Liu, Z.
History
DepositionMay 6, 2024Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 19, 2024Provider: repository / Type: Initial release
Revision 1.1Jun 26, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.pdbx_database_id_DOI / _citation.year / _citation_author.identifier_ORCID / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
B: Photosystem II CP47 reaction center protein
D: Photosystem II D2 protein
E: Cytochrome b559 subunit alpha
F: Cytochrome b559 subunit beta
H: Photosystem II reaction center protein H
I: Photosystem II reaction center protein I
K: Photosystem II reaction center protein K
L: Photosystem II reaction center protein L
M: Photosystem II reaction center protein M
T: Photosystem II reaction center protein T
V: Photosystem II reaction center protein Psb30
X: 4.1 kDa photosystem II subunit
Z: Photosystem II reaction center protein Z
C: Photosystem II CP43 reaction center protein
A: Photosystem II protein D1
1: Chains: 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)312,05486
Polymers257,59216
Non-polymers54,46270
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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Photosystem II ... , 12 types, 12 molecules BDHIKLMTVZCA

#1: Protein Photosystem II CP47 reaction center protein / PSII 47 kDa protein / Protein CP-47


Mass: 56089.703 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: A0A218N8S0
#2: Protein Photosystem II D2 protein / PSII D2 protein / Photosystem Q(A) protein


Mass: 39474.031 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P06007, photosystem II
#5: Protein Photosystem II reaction center protein H / PSII-H / Photosystem II 8 kDa phosphoprotein


Mass: 9445.063 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P22666
#6: Protein/peptide Photosystem II reaction center protein I / PSII-I / PSII 4.8 kDa protein


Mass: 4245.035 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P59763
#7: Protein/peptide Photosystem II reaction center protein K / PSII-K


Mass: 5062.142 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P18263
#8: Protein/peptide Photosystem II reaction center protein L / PSII-L


Mass: 4431.229 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P32974
#9: Protein/peptide Photosystem II reaction center protein M / PSII-M


Mass: 3762.433 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P92277
#10: Protein/peptide Photosystem II reaction center protein T / PSII-T


Mass: 3639.438 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P37256
#11: Protein/peptide Photosystem II reaction center protein Psb30 / Photosystem II reaction center protein Ycf12


Mass: 3333.058 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P50370
#13: Protein Photosystem II reaction center protein Z / PSII-Z


Mass: 6565.863 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P92276
#14: Protein Photosystem II CP43 reaction center protein / PSII 43 kDa protein / Protein CP-43 / Protein P6


Mass: 50680.738 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P10898
#15: Protein Photosystem II protein D1 / PSII D1 protein / 32 kDa thylakoid membrane protein / Photosystem II Q(B) protein


Mass: 36515.551 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P07753, photosystem II

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Cytochrome b559 subunit ... , 2 types, 2 molecules EF

#3: Protein Cytochrome b559 subunit alpha / PSII reaction center subunit V


Mass: 9312.598 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: P48268
#4: Protein/peptide Cytochrome b559 subunit beta / PSII reaction center subunit VI


Mass: 4986.013 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: Q08363

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Protein , 2 types, 2 molecules X1

#12: Protein 4.1 kDa photosystem II subunit


Mass: 9894.716 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: A8I846
#16: Protein Chains: 1


Mass: 10153.907 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Chlamydomonas reinhardtii (plant) / References: UniProt: A8HMM7

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Sugars , 1 types, 3 molecules

#26: Sugar ChemComp-DGD / DIGALACTOSYL DIACYL GLYCEROL (DGDG)


Type: saccharide / Mass: 949.299 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C51H96O15 / Feature type: SUBJECT OF INVESTIGATION

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Non-polymers , 11 types, 67 molecules

#17: Chemical...
ChemComp-CLA / CHLOROPHYLL A


Mass: 893.489 Da / Num. of mol.: 35 / Source method: obtained synthetically / Formula: C55H72MgN4O5 / Feature type: SUBJECT OF INVESTIGATION
#18: Chemical
ChemComp-BCR / BETA-CAROTENE


Mass: 536.873 Da / Num. of mol.: 10 / Source method: obtained synthetically / Formula: C40H56 / Feature type: SUBJECT OF INVESTIGATION
#19: Chemical
ChemComp-LMG / 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE


Mass: 787.158 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C45H86O10 / Feature type: SUBJECT OF INVESTIGATION
#20: Chemical
ChemComp-LHG / 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE


Mass: 722.970 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: C38H75O10P / Feature type: SUBJECT OF INVESTIGATION / Comment: phospholipid*YM
#21: Chemical ChemComp-BCT / BICARBONATE ION


Mass: 61.017 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: CHO3 / Feature type: SUBJECT OF INVESTIGATION / Comment: pH buffer*YM
#22: Chemical ChemComp-PL9 / 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 / PLASTOQUINONE 9


Mass: 749.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C53H80O2 / Feature type: SUBJECT OF INVESTIGATION
#23: Chemical ChemComp-PHO / PHEOPHYTIN A


Mass: 871.200 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C55H74N4O5 / Feature type: SUBJECT OF INVESTIGATION
#24: Chemical ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME


Mass: 616.487 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H32FeN4O4 / Feature type: SUBJECT OF INVESTIGATION
#25: Chemical ChemComp-VTQ / RRR-ALPHA-TOCOPHERYLQUINONE


Mass: 446.706 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C29H50O3 / Feature type: SUBJECT OF INVESTIGATION
#27: Chemical ChemComp-SQD / 1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL / SULFOQUINOVOSYLDIACYLGLYCEROL


Mass: 795.116 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C41H78O12S / Feature type: SUBJECT OF INVESTIGATION
#28: Chemical ChemComp-FE2 / FE (II) ION


Mass: 55.845 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Cryo-EM map of the PSII-PRF2' complex functioning in the PSII-repair cycle
Type: COMPLEX / Entity ID: #1-#16 / Source: NATURAL
Molecular weightExperimental value: NO
Source (natural)Organism: Chlamydomonas reinhardtii (plant)
Buffer solutionpH: 6.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 159928 / Symmetry type: POINT

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