4Y28 image
Deposition Date 2015-02-09
Release Date 2015-08-19
Last Version Date 2024-11-06
Entry Detail
PDB ID:
4Y28
Keywords:
PHOTOSYNTHESIS
Title:
The structure of plant photosystem I super-complex at 2.8 angstrom resolution.
Biological Source:
Source Organism:
Pisum sativum (Taxon ID: 3888)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.80 Å
R-Value Free:
0.26
R-Value Work:
0.25
R-Value Observed:
0.25
Space Group:
P 21 21 21
4Y28 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Light-harvesting complex I chlorophyll A/B-binding protein
Chain IDs:O (auth: 1)
Chain Length:202
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:E1C9L2 Pfam ID:PF00504
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Type II chlorophyll a/b binding protein from photosystem I
Gene (Uniprot):lhaB
Chain IDs:M (auth: 2)
Chain Length:269
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:Q41038 Pfam ID:PF00504
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Chlorophyll a-b binding protein 3, chloroplastic
Gene (Uniprot):lhca3
Chain IDs:P (auth: 3)
Chain Length:275
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:Q32904 Pfam ID:PF00504
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Chlorophyll a-b binding protein P4, chloroplastic
Gene (Uniprot):lhcA-P4
Chain IDs:N (auth: 4)
Chain Length:252
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:Q9SQL2 Pfam ID:PF00504
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I P700 chlorophyll a apoprotein A1
Gene (Uniprot):psaA
Chain IDs:A
Chain Length:758
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:P05310 Pfam ID:PF00223
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I P700 chlorophyll a apoprotein A2
Gene (Uniprot):psaB
Chain IDs:B
Chain Length:733
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:P05311 Pfam ID:PF00223
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I iron-sulfur center
Gene (Uniprot):psaC
Chain IDs:H (auth: C)
Chain Length:81
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:P10793 Pfam ID:PF14697
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I reaction center subunit II, chloroplastic
Chain IDs:I (auth: D)
Chain Length:147
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:E1C9K8 Pfam ID:PF02531
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I reaction center subunit IV A, chloroplastic
Chain IDs:J (auth: E)
Chain Length:66
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:E1C9K6 Pfam ID:PF02427
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I reaction center subunit III
Chain IDs:E (auth: F)
Chain Length:154
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:A0A0M3KL12 Pfam ID:PF02507
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:photosystem I reaction center
Chain IDs:F (auth: G)
Chain Length:97
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:A0A0M3KL13 Pfam ID:PF01241
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I reaction center subunit VI
Chain IDs:K (auth: H)
Chain Length:90
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:A0A0M3KL10 Pfam ID:PF03244
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I reaction center subunit VIII
Gene (Uniprot):psaI
Chain IDs:C (auth: I)
Chain Length:30
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:P17227 Pfam ID:PF00796 EC:1.97.1.12
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I reaction center subunit IX
Gene (Uniprot):psaJ
Chain IDs:D (auth: J)
Chain Length:42
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:D5MAL3 Pfam ID:PF01701
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosystem I reaction center subunit X psaK
Chain IDs:L (auth: K)
Chain Length:129
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:A0A0M3KL11 Pfam ID:PF01241
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Putative uncharacterized protein
Chain IDs:G (auth: L)
Chain Length:167
Number of Molecules:1
Biological Source:Pisum sativum
UniProt ID:E1C9L1 Pfam ID:PF02605
Ligand Molecules
BCR
CA
CHL
CL0
CLA
DGD
LHG
LMG
LMU
LUT
PQN
SF4
ZEX
Primary Citation
The structure of plant photosystem I super-complex at 2.8 angstrom resolution.
Elife 4 e07433 e07433 (2015)
PMID: 26076232 DOI: 10.7554/eLife.07433

Abstact

Most life forms on Earth are supported by solar energy harnessed by oxygenic photosynthesis. In eukaryotes, photosynthesis is achieved by large membrane-embedded super-complexes, containing reaction centers and connected antennae. Here, we report the structure of the higher plant PSI-LHCI super-complex determined at 2.8 Å resolution. The structure includes 16 subunits and more than 200 prosthetic groups, which are mostly light harvesting pigments. The complete structures of the four LhcA subunits of LHCI include 52 chlorophyll a and 9 chlorophyll b molecules, as well as 10 carotenoids and 4 lipids. The structure of PSI-LHCI includes detailed protein pigments and pigment-pigment interactions, essential for the mechanism of excitation energy transfer and its modulation in one of nature's most efficient photochemical machines.

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Disease

Primary Citation of related structures
4Y28
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