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psaB psaB psaA psaA psbK psbK psbP psbP psbU psbU psbA-1 psbA-1 psbB psbB psbA-2 psbA-2 psbA-3 psbA-3 psaC psaC psbY psbY psbC psbC psbD-1 psbD-1 psb27 psb27 CYB_1136 CYB_1136 psaE psaE psbH psbH ycf4 ycf4 psbE psbE psbF psbF psbL psbL psbJ psbJ psaL-1 psaL-1 psaI psaI psbO psbO CYB_1598 CYB_1598 psbW psbW psbD-2 psbD-2 psbZ psbZ ycf3 ycf3 psaD psaD psaL psaL CYB_2267 CYB_2267 CYB_2268 CYB_2268 psbI psbI psbV psbV psbV2 psbV2 psaF psaF psaL-2 psaL-2
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
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empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
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textmining
co-expression
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psaBPhotosystem I core protein PsaB; PsaA and PsaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. PSI is a plastocyanin/cytochrome c6-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin or cytochrome c6. (744 aa)
psaAPhotosystem I core protein PsaA; PsaA and PsaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. PSI is a plastocyanin/cytochrome c6-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin or cytochrome c6. (755 aa)
psbKPhotosystem II reaction center protein PsbK; One of the components of the core complex of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. (42 aa)
psbPPhotosystem II oxygen evolving complex protein PsbP. (174 aa)
psbUPhotosystem II 12 kDa extrinsic protein PsbU; Stabilizes the structure of photosystem II oxygen-evolving complex (OEC), the ion environment of oxygen evolution and protects the OEC against heat-induced inactivation. (134 aa)
psbA-1Photosystem II protein D1; Photosystem II (PSII) is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. The D1/D2 (PsbA/PsbA) reaction center heterodimer binds P680, the primary electron donor of PSII as well as several subsequent electron acceptors. (351 aa)
psbBPhotosystem II P680 chlorophyll A apoprotein; One of the components of the core complex of photosystem II (PSII). It binds chlorophyll and helps catalyze the primary light- induced photochemical processes of PSII. PSII is a light-driven water:plastoquinone oxidoreductase, using light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation; Belongs to the PsbB/PsbC family. PsbB subfamily. (510 aa)
psbA-2Photosystem II protein D1; Photosystem II (PSII) is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. The D1/D2 (PsbA/PsbA) reaction center heterodimer binds P680, the primary electron donor of PSII as well as several subsequent electron acceptors. (354 aa)
psbA-3Photosystem II protein D1; Identified by match to protein family HMM PF00124; match to protein family HMM TIGR01151. (354 aa)
psaCPhotosystem I iron-sulfur center, subunit VII; Apoprotein for the two 4Fe-4S centers FA and FB of photosystem I (PSI); essential for photochemical activity. FB is the terminal electron acceptor of PSI, donating electrons to ferredoxin. The C-terminus interacts with PsaA/B/D and helps assemble the protein into the PSI complex. Required for binding of PsaD and PsaE to PSI. PSI is a plastocyanin/cytochrome c6-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characte [...] (82 aa)
psbYPhotosystem II protein PsbY; Manganese-binding polypeptide with L-arginine metabolizing enzyme activity. Component of the core of photosystem II. Belongs to the PsbY family. (50 aa)
psbCPhotosystem II 44 kDa subunit reaction center protein; One of the components of the core complex of photosystem II (PSII). It binds chlorophyll and helps catalyze the primary light- induced photochemical processes of PSII. PSII is a light-driven water:plastoquinone oxidoreductase, using light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation; Belongs to the PsbB/PsbC family. PsbC subfamily. (472 aa)
psbD-1Photosystem II protein D2; Photosystem II (PSII) is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. The D1/D2 (PsbA/PsbA) reaction center heterodimer binds P680, the primary electron donor of PSII as well as several subsequent electron acceptors. D2 is needed for assembly of a stable PSII complex. (352 aa)
psb27Putative photosystem II protein; Plays a role in the repair and/or biogenesis of the calcium- manganese-oxide cluster on the lumenal face of the thylakoid membrane. Its presence in a photosystem II (PSII) preparation prevents binding of some small extrinsic subunits and thus assembly of calcium-manganese- oxide cluster. (133 aa)
CYB_1136Conserved hypothetical protein. (132 aa)
psaEPhotosystem I reaction center subunit IV; Identified by match to protein family HMM PF02427. (74 aa)
psbHPhotosystem II reaction center protein PsbH; One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly. PSII is a light- driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. (67 aa)
ycf4Photosystem I assembly protein Ycf4; Seems to be required for the assembly of the photosystem I complex; Belongs to the Ycf4 family. (189 aa)
psbECytochrome b559, alpha subunit; This b-type cytochrome is tightly associated with the reaction center of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. Belongs to the PsbE/PsbF family. (81 aa)
psbFCytochrome b559, beta subunit; This b-type cytochrome is tightly associated with the reaction center of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. Belongs to the PsbE/PsbF family. (43 aa)
psbLPhotosystem II reaction center protein PsbL; One of the components of the core complex of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. This subunit is found at the monomer-monomer interface and is required for correct PSII assembly and/or dimerization. (41 aa)
psbJPhotosystem II reaction center protein PsbJ; One of the components of the core complex of photosystem II (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. (39 aa)
psaL-1Photosystem I reaction center subunit XI; Identified by match to protein family HMM PF02605. (156 aa)
psaIPhotosystem I reaction center subunit VIII; Identified by match to protein family HMM PF00796. (37 aa)
psbOPhotosystem II manganese-stabilizing protein; Identified by match to protein family HMM PF01716. (264 aa)
CYB_1598Ferredoxin, 2Fe-2S; Identified by match to protein family HMM PF00111; match to protein family HMM TIGR02008. (99 aa)
psbWPhotosystem II reaction center protein PsbW; Identified by match to protein family HMM PF03912; Belongs to the Psb28 family. (104 aa)
psbD-2Photosystem II protein D2; Identified by match to protein family HMM PF00124; match to protein family HMM TIGR01152. (352 aa)
psbZYCF9, conserved hypothetical protein; Controls the interaction of photosystem II (PSII) cores with the light-harvesting antenna; Belongs to the PsbZ family. (61 aa)
ycf3Photosystem I assembly protein Ycf3; Essential for the assembly of the photosystem I (PSI) complex. May act as a chaperone-like factor to guide the assembly of the PSI subunits; Belongs to the Ycf3 family. (173 aa)
psaDPhotosystem I reaction center subunit II; Identified by match to protein family HMM PF02531. (141 aa)
psaLPhotosystem II protein, PsbB/PsbC family; Identified by match to protein family HMM PF00421; match to protein family HMM PF02605. (526 aa)
CYB_2267Flavodoxin; Low-potential electron donor to a number of redox enzymes. Belongs to the flavodoxin family. (169 aa)
CYB_2268Photosystem II protein, PsbB/PsbC family; Identified by match to protein family HMM PF00421. (344 aa)
psbIPhotosystem II reaction center protein PsbI; One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly. PSII is a light- driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H(2)O, generating O(2) and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. (38 aa)
psbVCytochrome c550; Low-potential cytochrome c that plays a role in the oxygen- evolving complex of photosystem II. (180 aa)
psbV2Cytochrome, putative; Possible low-potential cytochrome c. (165 aa)
psaFPhotosystem I reaction center subunit III; Identified by match to protein family HMM PF02507. (181 aa)
psaL-2Photosystem I reaction center subunit XI; Identified by match to protein family HMM PF02605. (159 aa)
Your Current Organism:
Synechococcus sp. JA23Ba
NCBI taxonomy Id: 321332
Other names: Cyanobacteria bacterium Yellowstone B-Prime, S. sp. JA-2-3B'a(2-13), Synechococcus sp. JA-2-3B'a(2-13)
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