Photosystem II

This table contains entries for proteins found within photosystem II for the spinach plant in the UniProt database. Links are provided to view the original UniProt protein entries, and to view their display in InterPro.

InterPro Family	SPTR	Protein name	Organism	InterPro Domain Architecture	InterPro Graphical Match	Function
IPR000484	PSBA_SPIOL (P02955)	Photosystem Q(B) protein precursor (protein D1)	Spinacia oleracea Spinach			PSII core reaction centre protein.
	PSBD_SPIOL (P06005)	Photosystem Q(A) protein precursor (protein D2)	Spinacia oleracea Spinach			PSII core reaction centre protein, D2 protein is needed for assembly of a stable PSII complex.
IPR000932	PSBB_SPIOL (P04160)	Photosystem II P680 chlorophyll A apoprotein (CP47)	Spinacia oleracea Spinach			Core antenna (conjugates with chlorophyll; catalyses primary photochemical processes).
	PSBC_SPIOL (P06003)	Photosystem II 44 kDa reaction centre protein (CP43; P6 protein)	Spinacia oleracea Spinach			Core antenna (conjugates with chlorophyll; catalyses primary photochemical processes).
IPR006216	PSBE_SPIOL (P09197)	Cytochrome b559 alpha subunit (PSII reaction centre subunit V; PsbE)	Spinacia oleracea Spinach			b-type cytochrome involved in PSII assembly and photoprotection.
	PSBF_SPIOL (P60128)	Cytochrome b559 beta subunit (PSII reaction centre subunit VI; PsbF)	Spinacia oleracea Spinach			b-type cytochrome involved in PSII assembly and photoprotection.
IPR001056	PSBH_SPIOL (P05146)	PSII reaction centre H protein (PSII-H)	Spinacia oleracea Spinach			PSII stability and assembly. Photoprotection
IPR003686	PSBI_SPIOL (P62103)	PSII reaction centre I protein (PSII-I)	Spinacia oleracea Spinach			PSII dimerisation and stability
IPR002682	PSBJ_SPIOL (Q9M3L2)	Photosystem II reaction centre J protein	Spinacia oleracea Spinach			Assembly of water splitting complex.
IPR003687	PSBK_SPIOL (P12163)	PSII reaction centre K protein (PSII-K)	Spinacia oleracea Spinach			Plastoquinone binding. Dimerisation.
IPR003372	PSBL_SPIOL (P60150)	Photosystem II reaction centre L protein (PSII 5 kDa protein)	Spinacia oleracea Spinach			Donor side electron transfer, PSII assembly and dimerisation.
IPR007826	PSBM_SPIOL (P62112)	PSII reaction centre M protein (PS-M)	Spinacia oleracea Spinach			Unknown
IPR003398	PSBN_SPIOL (P62116)	PSII reaction centre N protein	Spinacia oleracea Spinach			PSII stability
IPR002628	PSBO_SPIOL (P12359)	Oxygen-evolving enhancer protein 1, chloroplast precursor of PSII (OEE1; OEC33)	Spinacia oleracea Spinach			Stabilizes manganese cluster. Binds GTP, calcium ions and chloride ions. Promotes redox cycling in light..
IPR002683	PSBP_SPIOL (P12302)	Oxygen-evolving enhancer protein 2, chloroplast precursor of PSII (OEE2; OEC23)	Spinacia oleracea Spinach			May be involved in the regulation of PSII.
IPR008797	PSBQ_SPIOL (P12301)	Oxygen-evolving enhancer protein 3, chloroplast precursor of PSII (OEE3; OEC16)	Spinacia oleracea Spinach			Unknown
IPR006814	PSBR_SPIOL (P10690)	PSII 10 kDa polypeptide, chloroplast precursor	Spinacia oleracea Spinach			Associated with the oxygen-evolving complex of PSII.
IPR001344	PSBS_SPIOL (Q02060)	PSII 22 kDa protein, chloroplast precursor	Spinacia oleracea Spinach			May be involved in non-photochemical quenching, to protect plant against photo-oxidative damage.
IPR001743	PSBT_SPIOL (P61840)	Photosystem II reaction centre T protein (PSII-T)	Spinacia oleracea Spinach			PSII stability and photoprotection
IPR009806	PSBW_SPIOL (Q41387)	PSII reaction centre W protein, chloroplast precursor	Spinacia oleracea Spinach			Subunit of the water oxidation complex of PSII reaction centre complex. Dimerisation and photoprotection.
IPR009388	PSBY_SPIOL (P80470)	PSII core complex proteins psbY, chloroplast precursor	Spinacia oleracea Spinach			PSII core components PSBY-1 and -2 are manganese-binding polypeptides with L-arginine metabolizing enzyme activity; also minor catalase-like activity
IPR002644	PSBZ_SPIOL (Q9M3M6)	PSII reaction centre Z protein	Spinacia oleracea Spinach			Controls the interaction of PSII cores with the light-harvesting antenna.