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coxB coxB alr1174 alr1174 psbU psbU petG petG fdxH fdxH fdxN fdxN petC-2 petC-2 nifJ nifJ psaB-2 psaB-2 psaB psaB psaA psaA all4873 all4873 psbAI psbAI petM petM asl4557 asl4557 petC-4 petC-4 all4446 all4446 all4444 all4444 psbD psbD petN petN cytA cytA petF petF all4024 all4024 all3895 all3895 all3891 all3891 asl3860 asl3860 psbF psbF psbE psbE hoxR hoxR psbA psbA apcD apcD psbAIV psbAIV psaC psaC petD petD petB petB asl2914 asl2914 nifJ-2 nifJ-2 coxA-3 coxA-3 coxB-3 coxB-3 coxA-2 coxA-2 coxB-2 coxB-2 fdxB fdxB petC-3 petC-3 petA petA alr2405 alr2405 all2341 all2341 apcF apcF alr1997 alr1997 asl1922 asl1922 apcE apcE apcA apcA apcB apcB trxA trxA petJ petJ all0177 all0177 all0178 all0178 petE petE psbV psbV apcA-2 apcA-2 pecB pecB pecA pecA cpcB cpcB cpcA cpcA coxA coxA
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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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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
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Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
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textmining
co-expression
protein homology
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coxBCytochrome c oxidase subunit II; Subunits I and II form the functional core of the enzyme complex. Electrons originating in cytochrome c are transferred via heme a and Cu(A) to the binuclear center formed by heme a3 and Cu(B). (355 aa)
alr1174Rubrerythrin; ORF_ID:alr1174. (237 aa)
psbUPhotosystem II 12 kD extrinsic protein; Stabilizes the structure of photosystem II oxygen-evolving complex (OEC), the ion environment of oxygen evolution and protects the OEC against heat-induced inactivation. (149 aa)
petGCytochrome b6-f complex subunit 5; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. PetG is required for either the stability or assembly of the cytochrome b6-f complex. (37 aa)
fdxHHeterocyst ferredoxin; Ferredoxins are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions. Donates electrons to the nitrogenase. (99 aa)
fdxNFerrodoxin-like protein; ORF_ID:all1516; fdxN gene product. (116 aa)
petC-2Cytochrome b6/f-complex iron-sulfur protein; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. Belongs to the Rieske iron-sulfur protein family. (178 aa)
nifJPyruvate flavodoxin dehydrogenase; Oxidoreductase required for the transfer of electrons from pyruvate to flavodoxin. (1187 aa)
psaB-2Photosystem I P700 chlorophyll a apoprotein A2; 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 (By similarity). (742 aa)
psaBPhotosystem I core protein A2; 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 (By similarity). (741 aa)
psaAPhotosystem I core protein A1; 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. (752 aa)
all4873Glutaredoxin; Has a glutathione-disulfide oxidoreductase activity in the presence of NADPH and glutathione reductase. Reduces low molecular weight disulfides and proteins. (103 aa)
psbAIPhotosystem 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. (360 aa)
petMCytochrome b6-f complex subunit; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. (34 aa)
asl4557Rubredoxin; ORF_ID:asl4557. (54 aa)
petC-4Cytochrome b6/f-complex iron-sulfur protein; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. Belongs to the Rieske iron-sulfur protein family. (178 aa)
all4446Flavoprotein; Mediates electron transfer from NADH to oxygen, reducing it to water. This modular protein has 3 redox cofactors, in other organisms the same activity requires 2 or 3 proteins (By similarity). In the C-terminal section; belongs to the flavodoxin reductase family. (576 aa)
all4444Flavoprotein; Mediates electron transfer from NADH to oxygen, reducing it to water. This modular protein has 3 redox cofactors, in other organisms the same activity requires 2 or 3 proteins (By similarity). In the C-terminal section; belongs to the flavodoxin reductase family. (575 aa)
psbDPhotosystem 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. (351 aa)
petNPetN protein; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. (29 aa)
cytACytochrome c6; Functions as an electron carrier between membrane-bound cytochrome b6-f and photosystem I in oxygenic photosynthesis. (111 aa)
petFFerredoxin I; Ferredoxins are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions; Belongs to the 2Fe2S plant-type ferredoxin family. (99 aa)
all4024Cytochrome D ubiquinol oxidase chain I; ORF_ID:all4024; Belongs to the cytochrome ubiquinol oxidase subunit 1 family. (480 aa)
all3895Putative diflavin flavoprotein A 3; Mediates electron transfer from NADH to oxygen, reducing it to water. This modular protein has 3 redox cofactors, in other organisms the same activity requires 2 or 3 proteins (By similarity). In the C-terminal section; belongs to the flavodoxin reductase family. (574 aa)
all3891Putative diflavin flavoprotein A 6; Mediates electron transfer from NADH to oxygen, reducing it to water. This modular protein has 3 redox cofactors, in other organisms the same activity requires 2 or 3 proteins (By similarity). In the C-terminal section; belongs to the flavodoxin reductase family. (570 aa)
asl3860Glutaredoxin; Has a glutathione-disulfide oxidoreductase activity in the presence of NADPH and glutathione reductase. Reduces low molecular weight disulfides and proteins. (90 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. (45 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. (82 aa)
hoxRRubredoxin; Rubredoxin is a small nonheme, iron protein lacking acid- labile sulfide. Its single Fe, chelated to 4 Cys, functions as an electron acceptor and may also stabilize the conformation of the molecule. Could be involved in hydrogenase-linked redox processes (By similarity). (111 aa)
psbAPhotosystem 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. (360 aa)
apcDAllophycocyanin B alpha chain; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. Allophycocyanin has a maximum absorption at approximately 654 nanometers. (161 aa)
psbAIVPhotosystem 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. (360 aa)
psaCPhotosystem I iron-sulfur protein; 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 characterized accept [...] (81 aa)
petDPlastoquinol--plastocyanin reductase, apocytochrome subunit 4; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. (160 aa)
petBPlastoquinol--plastocyanin reductase, cytochrome b6; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. (215 aa)
asl2914Ferredoxin; Ferredoxins are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions. (74 aa)
nifJ-2Pyruvate-flavodoxin dehydrogenase; Oxidoreductase required for the transfer of electrons from pyruvate to flavodoxin, which reduces nitrogenase. (1199 aa)
coxA-3Cytochrome c oxidase subunit I; Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. CO I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit 2 and heme A of subunit 1 to the bimetallic center formed by heme A3 and copper B. (555 aa)
coxB-3Cytochrome c oxidase subunit II; Subunits I and II form the functional core of the enzyme complex. Electrons originating in cytochrome c are transferred via heme a and Cu(A) to the binuclear center formed by heme a3 and Cu(B). (304 aa)
coxA-2Cytochrome c oxidase subunit I; Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. CO I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit 2 and heme A of subunit 1 to the bimetallic center formed by heme A3 and copper B. (559 aa)
coxB-2Cytochrome c oxidase subunit II; Subunits I and II form the functional core of the enzyme complex. Electrons originating in cytochrome c are transferred via heme a and Cu(A) to the binuclear center formed by heme a3 and Cu(B). (327 aa)
fdxBFerredoxin; Ferredoxins are iron-sulfur proteins that transfer electrons in a wide variety of metabolic reactions. (97 aa)
petC-3Plastoquinol--plastocyanin reductase; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. Belongs to the Rieske iron-sulfur protein family. (179 aa)
petAApocytochrome f; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. (333 aa)
alr2405Flavodoxin; Low-potential electron donor to a number of redox enzymes; Belongs to the flavodoxin family. (170 aa)
all2341Thioredoxin 2; Participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions. (115 aa)
apcFPhycobilisome core component; A variant beta-allophycocyanin (AP) which forms a complex with ApcE, a phycobilisome terminal emitter that influences energy transfer to photosystem II; Belongs to the phycobiliprotein family. (169 aa)
alr1997Alr1997 protein; Part of a membrane-bound complex that couples electron transfer with translocation of ions across the membrane. Belongs to the NqrB/RnfD family. (300 aa)
asl1922Cytochrome b6-f complex subunit 6; Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions. PetL is important for photoautotrophic growth as well as for electron transfer efficiency and stability of the cytochrome b6-f complex. (31 aa)
apcEPhycobilisome core-membrane linker protein; This protein is postulated to act both as terminal energy acceptor (by its phycobilin-like domains) and as a linker polypeptide (by its repeats and arms) that stabilizes the phycobilisome core architecture. Has intrinsic bilin lyase activity (By similarity). (1132 aa)
apcAAllophycocyanin alpha subunit; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. Allophycocyanin has a maximum absorption at approximately 650 to 653 nanometers. (161 aa)
apcBAllophycocyanin beta subunit; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. Allophycocyanin has a maximum absorption at approximately 650 to 653 nanometers. (162 aa)
trxAThioredoxin; Participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions. (107 aa)
petJCytochrome c6; ORF_ID:all0161; Belongs to the cytochrome c family. PetJ subfamily. (111 aa)
all0177Flavoprotein; Mediates electron transfer from NADH to oxygen, reducing it to water. This modular protein has 3 redox cofactors, in other organisms the same activity requires 2 or 3 proteins (By similarity). In the C-terminal section; belongs to the flavodoxin reductase family. (570 aa)
all0178Flavoprotein; Mediates electron transfer from NADH to oxygen, reducing it to water. This modular protein has 3 redox cofactors, in other organisms the same activity requires 2 or 3 proteins (By similarity). In the C-terminal section; belongs to the flavodoxin reductase family. (579 aa)
petEPlastocyanin precursor; Participates in electron transfer between P700 and the cytochrome b6-f complex in photosystem I. (139 aa)
psbVCytochrome c550; Low-potential cytochrome c that plays a role in the oxygen- evolving complex of photosystem II. (163 aa)
apcA-2Allophycocyanin alpha subunit; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. Allophycocyanin has a maximum absorption at approximately 650 to 653 nanometers (By similarity). (161 aa)
pecBPhycoerythrocyanin beta chain; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. (172 aa)
pecAPhycoerythrocyanin alpha chain; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. (162 aa)
cpcBPhycocyanin beta chain; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. (173 aa)
cpcAPhycocyanin alpha chain; Light-harvesting photosynthetic bile pigment-protein from the phycobiliprotein complex. (163 aa)
coxACytochrome c oxidase subunit I; Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Subunits 1-3 form the functional core of the enzyme complex. CO I is the catalytic subunit of the enzyme. Electrons originating in cytochrome c are transferred via the copper A center of subunit 2 and heme A of subunit 1 to the bimetallic center formed by heme A3 and copper B. (575 aa)
Your Current Organism:
Nostoc sp. PCC7120
NCBI taxonomy Id: 103690
Other names: Anabaena sp. (ATCC 27893), Anabaena sp. (PCC 7120), Anabaena sp. DCC D0672, Anabaena sp. PCC 7120, Anabaena sp. SAG 25.82, Anabaena sp. UTEX B 2576, Anabaena variabilis UTCC 387, N. sp. PCC 7120, Nostoc muscorum ISU, Nostoc sp. AKM24, Nostoc sp. ATCC 27347, Nostoc sp. ATCC 72893, Nostoc sp. DSM 107007, Nostoc sp. Ind43, Nostoc sp. PCC 7120, Nostoc sp. SAG 25.82
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