Protein Domain : IPR003398

Type:  Family Name:  Photosystem II PsbN
Description:  Oxygenic photosynthesis uses two multi-subunit photosystems (I and II) located in the cell membranes of cyanobacteria and in the thylakoid membranes of chloroplasts in plants and algae. Photosystem II (PSII) has a P680 reaction centre containing chlorophyll 'a' that uses light energy to carry out the oxidation (splitting) of water molecules, and to produce ATP via a proton pump. Photosystem I (PSI) has a P700 reaction centre containing chlorophyll that takes the electron and associated hydrogen donated from PSII to reduce NADP+ to NADPH. Both ATP and NADPH are subsequently used in the light-independent reactions to convert carbon dioxide to glucose using the hydrogen atom extracted from water by PSII, releasing oxygen as a by-product.PSII is a multisubunit protein-pigment complex containing polypeptides both intrinsic and extrinsic to the photosynthetic membrane [, ]. Within the core of the complex, the chlorophyll and beta-carotene pigments are mainly bound to the antenna proteins CP43 (PsbC) and CP47 (PsbB), which pass the excitation energy on to the reaction centre proteins D1 (Qb, PsbA) and D2 (Qa, PsbD) that bind all the redox-active cofactors involved in the energy conversion process. The PSII oxygen-evolving complex (OEC) oxidises water to provide protons for use by PSI, and consists of OEE1 (PsbO), OEE2 (PsbP) and OEE3 (PsbQ). The remaining subunits in PSII are of low molecular weight (less than 10 kDa), and are involved in PSII assembly, stabilisation, dimerisation, and photo-protection []. This family represents the low molecular weight transmembrane protein PsbN found in PSII. PsbN may have a role in PSII stability, however its actual function unknown. PsbN does not appear to be essential for photoautotrophic growth or normal PSII function. Short Name:  PSII_PsbN
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0 Child Features

0 Contains

3 Cross Referencess

Identifier
PF02468
PD005510
MF_00293

0 Found In

4 GO Annotations

GO Term Gene Name
GO:0015979 IPR003398
GO:0009523 IPR003398
GO:0009539 IPR003398
GO:0016020 IPR003398

4 Ontology Annotations

GO Term Gene Name
GO:0015979 IPR003398
GO:0009523 IPR003398
GO:0009539 IPR003398
GO:0016020 IPR003398

0 Parent Features

401 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
ATCG00700.1 P62113 PAC:19637973 Arabidopsis thaliana 43  
Ciclev10003279m V4V1R4 PAC:20786080 Citrus clementina 41  
Potri.009G079200.1 A0A2K1Z4K7 PAC:26985785 Populus trichocarpa 50  
Potri.019G028300.1 PAC:27026445 Populus trichocarpa 43  
Potri.011G113700.1 PAC:27003027 Populus trichocarpa 43  
Potri.013G137500.1 PAC:26995118 Populus trichocarpa 43  
Potri.013G137000.1 PAC:26994632 Populus trichocarpa 43  
Gorai.006G061700.1 A0A0D2SST1 PAC:26834710 Gossypium raimondii 43  
Gorai.007G252000.1 A0A0D2NZU3 PAC:26785784 Gossypium raimondii 43  
Migut.I00398.1.p PAC:28930998 Mimulus guttatus 46  
Glyma.15G188400.1.p A0A0R0GE35 PAC:30495901 Glycine max 43  
Bradi5g09701.1.p PAC:31147353 Brachypodium distachyon 43  
Bradi5g09697.1.p PAC:31144693 Brachypodium distachyon 43  
Bradi1g05737.1.p PAC:31136523 Brachypodium distachyon 43  
Medtr2g062940.1 G7IT46 PAC:31067079 Medicago truncatula 75  
Spipo0G0186400 PAC:31508554 Spirodela polyrhiza 43  
Traes_1DL_46F79B64C.1 PAC:31814357 Triticum aestivum 43  
Traes_3DL_1BB393107.1 PAC:31769019 Triticum aestivum 32  
Pahal.B01984.1 PAC:32494766 Panicum hallii 43  
Sphfalx0041s0034.1.p PAC:32602756 Sphagnum fallax 61  
Bradi1g65952.1.p A0A0Q3JXU9 PAC:32806772 Brachypodium distachyon 43  
Bradi2g03624.1.p A0A0Q3FU29 PAC:32773957 Brachypodium distachyon 43  
Pp3c21_5640V3.1.p Q6YXN0 PAC:32914501 Physcomitrium patens 43  
Pp3c21_5640V3.2.p Q6YXN0 PAC:32914502 Physcomitrium patens 43  
Aco021223.1 PAC:33051084 Ananas comosus 60  
Aqcoe3G240500.1.p PAC:33095239 Aquilegia coerulea 43  
Aqcoe2G189500.1.p PAC:33059989 Aquilegia coerulea 43  
Brdisv1Per11006573m.p PAC:33232453 Brachypodium distachyon Per1 43  
Brdisv1Koz-11013766m.p PAC:33406468 Brachypodium distachyon Koz-1 43  
Brdisv1Koz-11047153m.p PAC:33387060 Brachypodium distachyon Koz-1 43  

3 Publications

First Author Title Year Journal Volume Pages PubMed ID
            12518057
            14871485
            15100025