7EU3 image
Deposition Date 2021-05-15
Release Date 2021-12-29
Last Version Date 2024-11-06
Entry Detail
PDB ID:
7EU3
Keywords:
PHOTOSYNTHESIS
Title:
Chloroplast NDH complex
Biological Source:
Source Organism:
Hordeum vulgare (Taxon ID: 4513)
Hordeum vulgare subsp. spontaneum (Taxon ID: 77009)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.70 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
7EU3 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex B5
Chain IDs:Y (auth: 0)
Chain Length:155
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:F2DWH9
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex L1
Chain IDs:P (auth: 1)
Chain Length:154
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:A0A8I6Y1Z8 Pfam ID:PF01789
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex L2
Chain IDs:Q (auth: 2)
Chain Length:216
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:F2CTW7 Pfam ID:PF05757
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex L3
Chain IDs:R (auth: 3)
Chain Length:227
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex L4
Chain IDs:S (auth: 4)
Chain Length:130
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex L5
Chain IDs:T (auth: 5)
Chain Length:243
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:F2CTD7 Pfam ID:PF00160
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex B1
Chain IDs:U (auth: 6)
Chain Length:469
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:F2D3G1
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex B2
Chain IDs:V (auth: 7)
Chain Length:361
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:F2D932
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex B3
Chain IDs:W (auth: 8)
Chain Length:119
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Photosynthetic NDH subunit of subcomplex B4
Chain IDs:X (auth: 9)
Chain Length:83
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:F2CPQ4
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit 1, chloroplastic
Gene (Uniprot):ndhA
Chain IDs:A
Chain Length:346
Number of Molecules:1
Biological Source:Hordeum vulgare
UniProt ID:P92432 Pfam ID:PF00146
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit 2, chloroplastic
Chain IDs:B
Chain Length:483
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:P0CC72 Pfam ID:PF19530, PF00361
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit 3, chloroplastic
Chain IDs:C
Chain Length:117
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:A1E9J6 Pfam ID:PF00507
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase chain 4, chloroplastic
Chain IDs:D
Chain Length:499
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:O03060 Pfam ID:PF00361
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit 4L, chloroplastic
Chain IDs:E
Chain Length:100
Number of Molecules:1
Biological Source:Hordeum vulgare
UniProt ID:P69378 Pfam ID:PF00420
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit F
Chain IDs:F
Chain Length:777
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:A0A7T7JN26 Pfam ID:PF00662, PF00361, PF01010
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit 6, chloroplastic
Chain IDs:G
Chain Length:176
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:O98693 Pfam ID:PF00499
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit H, chloroplastic
Chain IDs:H
Chain Length:383
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:O98691 Pfam ID:PF00346
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit I, chloroplastic
Chain IDs:I
Chain Length:165
Number of Molecules:1
Biological Source:Hordeum vulgare
UniProt ID:O98692 Pfam ID:PF12838
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit J
Chain IDs:J
Chain Length:159
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:Q7GT16 Pfam ID:PF00329
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit K, chloroplastic
Gene (Uniprot):ndhK
Chain IDs:K
Chain Length:245
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:S4Z232 Pfam ID:PF01058
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit L
Chain IDs:L
Chain Length:192
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:F2CUR7 Pfam ID:PF10716
Protein Blast
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit M
Chain IDs:M
Chain Length:213
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
UniProt ID:F2D138 Pfam ID:PF10664
Polymer Type:polypeptide(L)
Molecule:NAD(P)H-quinone oxidoreductase subunit N
Chain IDs:N
Chain Length:233
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
Polymer Type:polypeptide(L)
Molecule:Unidentified stromal protein
Chain IDs:O (auth: T)
Chain Length:61
Number of Molecules:1
Biological Source:Hordeum vulgare subsp. spontaneum
Ligand Molecules
BCR
LHG
SF4
SQD
Primary Citation
Architecture of the chloroplast PSI-NDH supercomplex in Hordeum vulgare.
Nature 601 649 654 (2022)
PMID: 34879391 DOI: 10.1038/s41586-021-04277-6

Abstact

The chloroplast NADH dehydrogenase-like (NDH) complex is composed of at least 29 subunits and has an important role in mediating photosystem I (PSI) cyclic electron transport (CET)1-3. The NDH complex associates with PSI to form the PSI-NDH supercomplex and fulfil its function. Here, we report cryo-electron microscopy structures of a PSI-NDH supercomplex from barley (Hordeum vulgare). The structures reveal that PSI-NDH is composed of two copies of the PSI-light-harvesting complex I (LHCI) subcomplex and one NDH complex. Two monomeric LHCI proteins, Lhca5 and Lhca6, mediate the binding of two PSI complexes to NDH. Ten plant chloroplast-specific NDH subunits are presented and their exact positions as well as their interactions with other subunits in NDH are elucidated. In all, this study provides a structural basis for further investigations on the functions and regulation of PSI-NDH-dependent CET.

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Chemical

Disease

Primary Citation of related structures
7EU3