7y7b

Electron Microscopy
2.66Å resolution

Cryo-EM structure of cryptophyte photosystem I

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero 29-mer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-214561 (preferred)
Entry contents:
28 distinct polypeptide molecules
Macromolecules (28 distinct):
ACPI-1 Chain: 1
Molecule details ›
Chain: 1
Length: 222 amino acids
Theoretical weight: 23.48 KDa
Source organism: Chroomonas placoidea
ACPI-2 Chain: 2
Molecule details ›
Chain: 2
Length: 216 amino acids
Theoretical weight: 23.4 KDa
Source organism: Chroomonas placoidea
ACPI-3 Chain: 3
Molecule details ›
Chain: 3
Length: 236 amino acids
Theoretical weight: 24.97 KDa
Source organism: Chroomonas placoidea
ACPI-4 Chain: 4
Molecule details ›
Chain: 4
Length: 217 amino acids
Theoretical weight: 23.55 KDa
Source organism: Chroomonas placoidea
ACPI-5 Chain: 5
Molecule details ›
Chain: 5
Length: 229 amino acids
Theoretical weight: 24.06 KDa
Source organism: Chroomonas placoidea
ACPI-6 Chain: 6
Molecule details ›
Chain: 6
Length: 215 amino acids
Theoretical weight: 22.69 KDa
Source organism: Chroomonas placoidea
ACPI-7 Chain: 7
Molecule details ›
Chain: 7
Length: 230 amino acids
Theoretical weight: 24.55 KDa
Source organism: Chroomonas placoidea
ACPI-8 Chain: 8
Molecule details ›
Chain: 8
Length: 227 amino acids
Theoretical weight: 23.7 KDa
Source organism: Chroomonas placoidea
ACPI-12 Chain: 9
Molecule details ›
Chain: 9
Length: 220 amino acids
Theoretical weight: 23.22 KDa
Source organism: Chroomonas placoidea
Photosystem I P700 chlorophyll a apoprotein A1 Chain: A
Molecule details ›
Chain: A
Length: 752 amino acids
Theoretical weight: 83.49 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AIB4 (Residues: 1-752; Coverage: 100%)
Gene name: psaA
Sequence domains: Photosystem I psaA/psaB protein
Photosystem I P700 chlorophyll a apoprotein A2 Chain: B
Molecule details ›
Chain: B
Length: 734 amino acids
Theoretical weight: 82.22 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AI95 (Residues: 1-734; Coverage: 100%)
Gene name: psaB
Sequence domains: Photosystem I psaA/psaB protein
Photosystem I iron-sulfur center Chain: C
Molecule details ›
Chain: C
Length: 81 amino acids
Theoretical weight: 8.74 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AI25 (Residues: 1-81; Coverage: 100%)
Gene name: psaC
Sequence domains: 4Fe-4S dicluster domain
Photosystem I reaction center subunit II Chain: D
Molecule details ›
Chain: D
Length: 141 amino acids
Theoretical weight: 15.59 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AIA6 (Residues: 1-141; Coverage: 100%)
Gene name: psaD
Sequence domains: PsaD
Photosystem I reaction center subunit IV Chain: E
Molecule details ›
Chain: E
Length: 64 amino acids
Theoretical weight: 7.35 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AIF3 (Residues: 1-64; Coverage: 100%)
Gene name: psaE
Sequence domains: Photosystem I reaction centre subunit IV / PsaE
Photosystem I reaction center subunit III Chain: F
Molecule details ›
Chain: F
Length: 183 amino acids
Theoretical weight: 20.39 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AI52 (Residues: 1-183; Coverage: 100%)
Gene name: psaF
Sequence domains: Photosystem I reaction centre subunit III
Photosystem I reaction center subunit VIII Chain: I
Molecule details ›
Chain: I
Length: 36 amino acids
Theoretical weight: 3.98 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AI78 (Residues: 1-36; Coverage: 100%)
Gene name: psaI
Sequence domains: Photosystem I reaction centre subunit VIII
Photosystem I reaction center subunit IX Chain: J
Molecule details ›
Chain: J
Length: 42 amino acids
Theoretical weight: 4.86 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AI55 (Residues: 1-42; Coverage: 100%)
Gene name: psaJ
Sequence domains: Photosystem I reaction centre subunit IX / PsaJ
Photosystem I reaction center subunit PsaK Chain: K
Molecule details ›
Chain: K
Length: 87 amino acids
Theoretical weight: 8.84 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AI34 (Residues: 1-87; Coverage: 100%)
Gene name: psaK
Sequence domains: Photosystem I psaG / psaK
Photosystem I reaction center subunit XI Chain: L
Molecule details ›
Chain: L
Length: 153 amino acids
Theoretical weight: 16.49 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AI68 (Residues: 1-153; Coverage: 100%)
Gene name: psaL
Sequence domains: Photosystem I reaction centre subunit XI
Photosystem I reaction center subunit XII Chain: M
Molecule details ›
Chain: M
Length: 30 amino acids
Theoretical weight: 3.25 KDa
Source organism: Chroomonas placoidea
UniProt:
  • Canonical: A0A222AI28 (Residues: 1-30; Coverage: 100%)
Gene name: psaM
Sequence domains: Photosystem I protein M (PsaM)
PsaO Chain: O
Molecule details ›
Chain: O
Length: 99 amino acids
Theoretical weight: 10.77 KDa
Source organism: Chroomonas placoidea
PsaR Chain: R
Molecule details ›
Chain: R
Length: 133 amino acids
Theoretical weight: 13.87 KDa
Source organism: Chroomonas placoidea
Unk1 Chain: X
Molecule details ›
Chain: X
Length: 164 amino acids
Theoretical weight: 13.98 KDa
Source organism: Chroomonas placoidea
ACPI-S Chain: Z
Molecule details ›
Chain: Z
Length: 242 amino acids
Theoretical weight: 25.65 KDa
Source organism: Chroomonas placoidea
ACPI-13/10 Chains: a, d
Molecule details ›
Chains: a, d
Length: 215 amino acids
Theoretical weight: 22.27 KDa
Source organism: Chroomonas placoidea
ACPI-14 Chain: b
Molecule details ›
Chain: b
Length: 218 amino acids
Theoretical weight: 23.76 KDa
Source organism: Chroomonas placoidea
ACPI-9 Chain: c
Molecule details ›
Chain: c
Length: 257 amino acids
Theoretical weight: 27.21 KDa
Source organism: Chroomonas placoidea
ACPI-11 Chain: e
Molecule details ›
Chain: e
Length: 208 amino acids
Theoretical weight: 22.45 KDa
Source organism: Chroomonas placoidea

Ligands and Environments

Experiments and Validation Details

Entry percentile scores
Resolution: 2.66Å
Relevant EMDB volumes: EMD-33659