PDBe 2axt

X-ray diffraction
3Å resolution

Crystal Structure of Photosystem II from Thermosynechococcus elongatus

Released:

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero 36-mer (preferred)
Entry contents:
18 distinct polypeptide molecules
Macromolecules (18 distinct):
Photosystem II protein D1 1 Chains: A, a
Molecule details ›
Chains: A, a
Length: 344 amino acids
Theoretical weight: 38.27 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: P0A444 (Residues: 1-344)
Gene names: psbA-1, psbA1, tlr1843
Photosystem II CP47 reaction center protein Chains: B, b
Molecule details ›
Chains: B, b
Length: 510 amino acids
Theoretical weight: 56.66 KDa
Source organism: Thermosynechococcus elongatus BP-1
UniProt:
  • Best match: Q8DIQ1 (Residues: 1-510)
Gene names: psbB, tlr1530
Photosystem II CP43 reaction center protein Chains: C, c
Molecule details ›
Chains: C, c
Length: 473 amino acids
Theoretical weight: 51.67 KDa
Source organism: Thermosynechococcus elongatus BP-1
UniProt:
  • Best match: Q8DIF8 (Residues: 1-461)
Gene names: psbC, tlr1631
Photosystem II D2 protein Chains: D, d
Molecule details ›
Chains: D, d
Length: 352 amino acids
Theoretical weight: 39.39 KDa
Source organism: Thermosynechococcus elongatus BP-1
UniProt:
  • Best match: Q8CM25 (Residues: 1-352)
Gene names: psbD1, psbD2, tlr0455, tlr1630
Cytochrome b559 subunit alpha Chains: E, e
Molecule details ›
Chains: E, e
Length: 84 amino acids
Theoretical weight: 9.58 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q8DIP0 (Residues: 1-84)
Gene names: psbE, tsr1541
Cytochrome b559 subunit beta Chains: F, f
Molecule details ›
Chains: F, f
Length: 45 amino acids
Theoretical weight: 5.07 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q8DIN9 (Residues: 1-45)
Gene names: psbF, tsr1542
Photosystem II reaction center protein H Chains: H, h
Molecule details ›
Chains: H, h
Length: 66 amino acids
Theoretical weight: 7.36 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q8DJ43 (Residues: 1-66)
Gene names: psbH, tsl1386
Photosystem II reaction center protein I Chains: I, i
Molecule details ›
Chains: I, i
Length: 38 amino acids
Theoretical weight: 4.41 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q8DJZ6 (Residues: 1-38)
Gene names: psbI, tsr1074
Photosystem II reaction center protein J Chains: J, j
Molecule details ›
Chains: J, j
Length: 40 amino acids
Theoretical weight: 4.11 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: P59087 (Residues: 1-40)
Gene names: psbJ, tsr1544
Photosystem II reaction center protein K Chains: K, k
Molecule details ›
Chains: K, k
Length: 37 amino acids
Theoretical weight: 4.1 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q9F1K9 (Residues: 10-46)
Gene names: psbK, tsl0176
Photosystem II reaction center protein L Chains: L, l
Molecule details ›
Chains: L, l
Length: 37 amino acids
Theoretical weight: 4.3 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q8DIN8 (Residues: 1-37)
Gene names: psbL, tsr1543
Photosystem II reaction center protein M Chains: M, m
Molecule details ›
Chains: M, m
Length: 36 amino acids
Theoretical weight: 3.98 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q8DHA7 (Residues: 1-36)
Gene names: psbM, tsl2052
Photosystem II manganese-stabilizing polypeptide Chains: O, o
Molecule details ›
Chains: O, o
Length: 247 amino acids
Theoretical weight: 26.92 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: P0A431 (Residues: 26-272)
Gene names: psbO, tll0444
Photosystem II reaction center protein T Chains: T, t
Molecule details ›
Chains: T, t
Length: 32 amino acids
Theoretical weight: 3.88 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q8DIQ0 (Residues: 1-32)
Gene names: psbT, tsr1531
Photosystem II 12 kDa extrinsic protein Chains: U, u
Molecule details ›
Chains: U, u
Length: 104 amino acids
Theoretical weight: 11.66 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q9F1L5 (Residues: 31-134)
Gene names: psbU, tll2409
Cytochrome c-550 Chains: V, v
Molecule details ›
Chains: V, v
Length: 137 amino acids
Theoretical weight: 15.15 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: P0A386 (Residues: 27-163)
Gene names: psbV, tll1285
Unassigned subunits Chains: X, x
Molecule details ›
Chains: X, x
Length: 129 amino acids
Theoretical weight: 11 KDa
Source organism: Thermosynechococcus elongatus
Photosystem II reaction center protein Z Chains: Z, z
Molecule details ›
Chains: Z, z
Length: 62 amino acids
Theoretical weight: 6.77 KDa
Source organism: Thermosynechococcus elongatus
UniProt:
  • Best match: Q8DHJ2 (Residues: 1-62)
Gene names: psbZ, tsr1967

Ligands and Environments

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P212121
Unit cell:
a: 127.692Å b: 225.403Å c: 306.106Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.234 0.234 0.286