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6kac
From Proteopedia
(Difference between revisions)
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==Cryo-EM structure of the C2S2-type PSII-LHCII supercomplex from Chlamydomonas reihardtii== | ==Cryo-EM structure of the C2S2-type PSII-LHCII supercomplex from Chlamydomonas reihardtii== | ||
| - | < | + | <SX load='6kac' size='340' side='right' viewer='molstar' caption='[[6kac]], [[Resolution|resolution]] 2.70Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[6kac]] is a 56 chain structure with sequence from [http://en.wikipedia.org/wiki/Chlamydomonas_reinhardtii Chlamydomonas reinhardtii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6KAC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6KAC FirstGlance]. <br> | <table><tr><td colspan='2'>[[6kac]] is a 56 chain structure with sequence from [http://en.wikipedia.org/wiki/Chlamydomonas_reinhardtii Chlamydomonas reinhardtii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6KAC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6KAC FirstGlance]. <br> | ||
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</table> | </table> | ||
== Function == | == Function == | ||
| - | [[http://www.uniprot.org/uniprot/PSBK_CHLRE PSBK_CHLRE]] 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. Required for assembly and/or stability of PSII (PubMed:12939265, PubMed:8193302).[HAMAP-Rule:MF_00441]<ref>PMID:12939265</ref> <ref>PMID:8193302</ref> [[http://www.uniprot.org/uniprot/Q93WL4_CHLRE Q93WL4_CHLRE]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.[RuleBase:RU363080] [[http://www.uniprot.org/uniprot/PSBF_CHLRE PSBF_CHLRE]] 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.[HAMAP-Rule:MF_00643] | + | [[http://www.uniprot.org/uniprot/PSBK_CHLRE PSBK_CHLRE]] 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. Required for assembly and/or stability of PSII (PubMed:12939265, PubMed:8193302).[HAMAP-Rule:MF_00441]<ref>PMID:12939265</ref> <ref>PMID:8193302</ref> [[http://www.uniprot.org/uniprot/Q93WL4_CHLRE Q93WL4_CHLRE]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.[RuleBase:RU363080] [[http://www.uniprot.org/uniprot/PSBF_CHLRE PSBF_CHLRE]] 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.[HAMAP-Rule:MF_00643] [[http://www.uniprot.org/uniprot/PSBB_CHLRE PSBB_CHLRE]] 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. [[http://www.uniprot.org/uniprot/PSBT_CHLRE PSBT_CHLRE]] Seems to play a role in the dimerization of PSII (By similarity). Essential to maintain photosynthetic activity under adverse growth conditions. [[http://www.uniprot.org/uniprot/Q93WE0_CHLRE Q93WE0_CHLRE]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.[RuleBase:RU363080] [[http://www.uniprot.org/uniprot/PSBA_CHLRE PSBA_CHLRE]] This is one of the two reaction center proteins of photosystem II. 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.[HAMAP-Rule:MF_01379] [[http://www.uniprot.org/uniprot/PSBW_CHLRE PSBW_CHLRE]] Stabilizes dimeric photosystem II (PSII). In its absence there is a reduction of monomeric PSII (By similarity).[UniProtKB:Q39194] [[http://www.uniprot.org/uniprot/CB29_CHLRE CB29_CHLRE]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated. CP29 facilitates the State 1 to State 2 transition, where State I is induced by excess photosystem I (PSI) light and State 2 is induced by excess photosystem II (PSII) light.<ref>PMID:16156798</ref> [[http://www.uniprot.org/uniprot/PSBM_CHLRE PSBM_CHLRE]] 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. [[http://www.uniprot.org/uniprot/PSBE_CHLRE PSBE_CHLRE]] 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.[HAMAP-Rule:MF_00642] [[http://www.uniprot.org/uniprot/Q93VE0_CHLRE Q93VE0_CHLRE]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.[RuleBase:RU363080] [[http://www.uniprot.org/uniprot/PSBI_CHLRE PSBI_CHLRE]] One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly (PubMed:7721898). 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.[HAMAP-Rule:MF_01316]<ref>PMID:7721898</ref> [[http://www.uniprot.org/uniprot/PSBL_CHLRE PSBL_CHLRE]] 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.[HAMAP-Rule:MF_01317] [[http://www.uniprot.org/uniprot/PSBO_CHLRE PSBO_CHLRE]] Stabilizes the manganese cluster which is the primary site of water splitting. [[http://www.uniprot.org/uniprot/PSBP_CHLRE PSBP_CHLRE]] May be involved in the regulation of photosystem II. Required for high levels of photosynthesis oxygen evolution. [[http://www.uniprot.org/uniprot/PSBZ_CHLRE PSBZ_CHLRE]] Controls the interaction of photosystem II (PSII) cores with the light-harvesting antenna. [[http://www.uniprot.org/uniprot/PSBH_CHLRE PSBH_CHLRE]] One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly, possibly playing a role in dimerization (PubMed:9112780, PubMed:9554956). 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.[HAMAP-Rule:MF_00752]<ref>PMID:9112780</ref> <ref>PMID:9554956</ref> [[http://www.uniprot.org/uniprot/PSBC_CHLRE PSBC_CHLRE]] 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.[HAMAP-Rule:MF_01496] [[http://www.uniprot.org/uniprot/Q9FEK6_CHLRE Q9FEK6_CHLRE]] The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.[RuleBase:RU363080] [[http://www.uniprot.org/uniprot/PSBJ_CHLRE PSBJ_CHLRE]] 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.[HAMAP-Rule:MF_01305] [[http://www.uniprot.org/uniprot/PSBD_CHLRE PSBD_CHLRE]] 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.[HAMAP-Rule:MF_01383] |
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
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<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
| - | </ | + | </SX> |
[[Category: Chlamydomonas reinhardtii]] | [[Category: Chlamydomonas reinhardtii]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
Revision as of 22:23, 6 March 2020
Cryo-EM structure of the C2S2-type PSII-LHCII supercomplex from Chlamydomonas reihardtii
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