PDBsum entry 7o1v

Photosynthesis

PDB id: 7o1v

Contents

Protein chains

739 a.a.

729 a.a.

80 a.a.

141 a.a.

69 a.a.

80 a.a.

31 a.a.

Ligands

CLA ×88

PQN ×2

BCR ×15

LHG ×5

LMG ×4

SF4 ×3

ECH ×2

SQD

PDB id:

7o1v

Name:

Photosynthesis

Title:

Structure of a minimal photosystem i

Structure:

Photosystem i p700 chlorophyll a apoprotein a1. Chain: a. Synonym: psaa. Photosystem i p700 chlorophyll a apoprotein a2. Chain: b. Synonym: psab. Photosystem i iron-sulfur center. Chain: c. Synonym: 9 kda polypeptide,psi-c,photosystem i subunit vii,psac.

Source:

Synechocystis sp. (Strain pcc 6803 / kazusa). Organism_taxid: 1111708. Strain: pcc 6803 / kazusa. Strain: pcc 6803 / kazusa

Authors:

N.Nelson,I.Caspy,P.Lambrev

Key ref:

P.Akhtar et al. (2021). Two-Dimensional electronic spectroscopy of a minimal photosystem i complex reveals the rate of primary cha separation.. J am chem soc, 143, 14601. PubMed id: 34472838

Date:

30-Mar-21 Release date: 01-Sep-21

Protein chain

P29254  (PSAA_SYNY3) -  Photosystem I P700 chlorophyll a apoprotein A1 from Synechocystis sp. (strain PCC 6803 / Kazusa)

Seq: 751 a.a.

Struc: 739 a.a.

Protein chain

P29255  (PSAB_SYNY3) -  Photosystem I P700 chlorophyll a apoprotein A2 from Synechocystis sp. (strain PCC 6803 / Kazusa)

Seq: 731 a.a.

Struc: 729 a.a.

Protein chain

P32422  (PSAC_SYNY3) -  Photosystem I iron-sulfur center from Synechocystis sp. (strain PCC 6803 / Kazusa)

Seq: 81 a.a.

Struc: 80 a.a.

Protein chain

P19569  (PSAD_SYNY3) -  Photosystem I reaction center subunit II from Synechocystis sp. (strain PCC 6803 / Kazusa)

Seq: 141 a.a.

Struc: 141 a.a.

Protein chain

P12975  (PSAE_SYNY3) -  Photosystem I reaction center subunit IV from Synechocystis sp. (strain PCC 6803 / Kazusa)

Seq: 74 a.a.

Struc: 69 a.a.

Protein chain

P74564  (PSAK2_SYNY3) -  Photosystem I reaction center subunit PsaK 2 from Synechocystis sp. (strain PCC 6803 / Kazusa)

Seq: 90 a.a.

Struc: 80 a.a.

Protein chain

P72986  (PSAM_SYNY3) -  Photosystem I reaction center subunit XII from Synechocystis sp. (strain PCC 6803 / Kazusa)

Seq: 31 a.a.

Struc: 31 a.a.

Enzyme reactions

• Enzyme class 2: Chains A, B, C: E.C.1.97.1.12 - photosystem I.
• Reaction: reduced [plastocyanin] + hnu + oxidized [2Fe-2S]-[ferredoxin] = oxidized [plastocyanin] + reduced [2Fe-2S]-[ferredoxin]
• Enzyme class 3: Chains D, E, K, M: E.C.?

Note, where more than one E.C. class is given (as above), each may correspond to a different protein domain or, in the case of polyprotein precursors, to a different mature protein.