PDB 6kig structure summary ‹ Protein Data Bank in Europe (PDBe)

Function and Biology Details

Reaction catalysed:

Reduced plastocyanin + oxidized ferredoxin + light = oxidized plastocyanin + reduced ferredoxin

Biochemical function:

chlorophyll binding

Biological process:

photosynthesis

Cellular component:

photosystem I

Sequence domains:

21 more domains

Structure analysis Details

Assembly composition:

hetero 51-mer (preferred)

Assembly name:

Photosystem I (preferred)

PDBe Complex ID:

PDB-CPX-147324 (preferred)

Entry contents:

12 distinct polypeptide molecules

Macromolecules (12 distinct):

Photosystem I P700 chlorophyll a apoprotein A1 Chains: A, G, e

Molecule details ›

Chains: A, G, e
Length: 763 amino acids
Theoretical weight: 83.99 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: Q31LJ0 (Residues: 1-763; Coverage: 100%)

Gene names: Synpcc7942_2049, psaA
Sequence domains: Photosystem I psaA/psaB protein

Photosystem I P700 chlorophyll a apoprotein A2 Chains: B, H, f

Molecule details ›

Chains: B, H, f
Length: 734 amino acids
Theoretical weight: 81.55 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: Q31LJ1 (Residues: 1-734; Coverage: 100%)

Gene names: Synpcc7942_2048, psaB
Sequence domains: Photosystem I psaA/psaB protein

Photosystem I iron-sulfur center Chains: C, N, g

Molecule details ›

Chains: C, N, g
Length: 81 amino acids
Theoretical weight: 8.81 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: Q31QV2 (Residues: 1-81; Coverage: 100%)

Gene names: Synpcc7942_0535, psaC
Sequence domains: 4Fe-4S dicluster domain

Photosystem I reaction center subunit II Chains: D, O, h

Molecule details ›

Chains: D, O, h
Length: 141 amino acids
Theoretical weight: 15.54 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: Q31PI7 (Residues: 2-142; Coverage: 99%)

Gene name: Synpcc7942_1002
Sequence domains: PsaD

Photosystem I reaction center subunit IV Chains: E, Q, i

Molecule details ›

Chains: E, Q, i
Length: 75 amino acids
Theoretical weight: 8.15 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: Q31NL7 (Residues: 1-75; Coverage: 100%)

Gene names: Synpcc7942_1322, psaE
Sequence domains: Photosystem I reaction centre subunit IV / PsaE

Photosystem I reaction center subunit III Chains: F, R, j

Molecule details ›

Chains: F, R, j
Length: 159 amino acids
Theoretical weight: 17.13 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: Q31NT9 (Residues: 1-159; Coverage: 100%)

Gene name: Synpcc7942_1250
Sequence domains: Photosystem I reaction centre subunit III

Photosystem I reaction center subunit VIII Chains: I, S, k

Molecule details ›

Chains: I, S, k
Length: 38 amino acids
Theoretical weight: 4 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: P95823 (Residues: 1-38; Coverage: 100%)

Gene names: Synpcc7942_2343, psaI
Sequence domains: Photosystem I reaction centre subunit VIII

Photosystem I reaction center subunit IX Chains: J, T, l

Molecule details ›

Chains: J, T, l
Length: 41 amino acids
Theoretical weight: 4.71 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: Q31NU0 (Residues: 1-41; Coverage: 100%)

Gene names: Synpcc7942_1249, psaJ
Sequence domains: Photosystem I reaction centre subunit IX / PsaJ

Photosystem I reaction center subunit PsaK Chains: K, U, m

Molecule details ›

Chains: K, U, m
Length: 84 amino acids
Theoretical weight: 8.4 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: Q31PR9 (Residues: 1-84; Coverage: 100%)

Gene names: Synpcc7942_0920, psaK
Sequence domains: Photosystem I psaG / psaK

Photosystem I reaction center subunit XI Chains: L, V, n

Molecule details ›

Chains: L, V, n
Length: 166 amino acids
Theoretical weight: 17.3 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt:

Canonical: P95822 (Residues: 1-166; Coverage: 100%)

Gene names: Synpcc7942_2342, psaL
Sequence domains: Photosystem I reaction centre subunit XI

PsaM Chains: M, W, o

Molecule details ›

Chains: M, W, o
Length: 29 amino acids
Theoretical weight: 3.24 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805

Iron stress-induced chlorophyll-binding protein Chains: 1, 2, 3, 4, 5, 6, Y, Z, a, b, c, d, q, r, s, t, u, v

Molecule details ›

Chains: 1, 2, 3, 4, 5, 6, Y, Z, a, b, c, d, q, r, s, t, u, v
Length: 342 amino acids
Theoretical weight: 37 KDa
Source organism: Synechococcus elongatus PCC 7942 = FACHB-805
UniProt: