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Biochemical Space

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photosystem II [ps2]

A photosystem that contains a pheophytin-quinone reaction center with associated accessory pigments and electron carriers. In cyanobacteria and chloroplasts, in the presence of light, PSII functions as a water-plastoquinone oxidoreductase, transferring electrons from water to plastoquinone, whereas other photosynthetic bacteria carry out anoxygenic photosynthesis and oxidize other compounds to re-reduce the photoreaction center.

Part of:

Definition in BCS:

qb|qa|chl|p680|pheo|oec|yz
Oxygen evolving complex is oxidized from S2 to S3
Rule:
Details
Oxygen evolving complex is oxidized from S0 to S1
Rule:
Details
Oxygen evolving complex is oxidized from S1 to S2
Rule:
Details
thyrosin donor is oxidized by P680+
Rule:
Details
a plastoquinone from the pool binds to the Qb-binding pocket of the PSII D1 protein
Rule:
Details
the double reduced secondary quinone acceptor Qb2- is protonated plastoquinol and released from the Qb-binding pocket of the PSII D1 protein to plastoquinon pool.
Rule:
Details
the electron from the reduced primary quinone acceptor of PSII Qa-
Rule:
Details
the electron from the reduced primary quinone acceptor of PSII Qa-
Rule:
Details
chlorophyll exciton of the internal antenna of PSI migrates to the primary chlorophyll donor of PSI that drives the charge separation between P700 and A0
Rule:
Details
chlorophyll exciton of the internal antenna of PSII migrates to the primary chlorophyll donor of PSII that drives the charge separation between P680 and Pheo
Rule:
Details
chlorophyll a (chl, pigment ligand) emits near infra-red {nir} fluorescence
Rule:
Details
chlorophyll a (chl, pigment ligand) is excited by absorption of a photon in the internal antenna of PSII (PSII, pigment-protein complex)
Rule:
Details
Exciton is transferred from the phycocyanobilin (PCB) in the phycobilisome (PBS) to chlorophyll (chl) in the
Rule:
Details
chlorophyll exciton of the internal antenna of PSII migrates to the primary chlorophyll donor of PSII that drives the charge separation between P680 and Pheo
Rule:
Details