Score = 80.1 bits (196), Expect = 4e-15, Method: Composition-based stats.
Identities = 44/98 (44%), Positives = 50/98 (51%), Gaps = 29/98 (29%)
Query: 3 GKVIDTFPYILSEVFHLICSVILDFDNIYHAFLGLETFEESFSFFGY------------- 49
G+VIDTFPY +S V HLI S +L F IYHA LG ET EESF FFGY
Sbjct: 103 GEVIDTFPYFVSGVLHLISSAVLGFGGIYHALLGPETLEESFPFFGYVWKDRNKMTTILG 162
Query: 50 ----------------TLYFRDLYDSWAPRDGERLEKL 71
LYF +YD+WAP GE L K+
Sbjct: 163 IHLILLGIGAFLLVFKALYFGGVYDTWAPGGGEMLRKI 200
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II. Citrus sinensis (taxid: 2711)
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II.
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II.
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II.
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II.
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II.
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II.
Adiantum capillus-veneris (taxid: 13818)
>sp|Q2PMT9|PSBC_SOYBN Photosystem II CP43 chlorophyll apoprotein OS=Glycine max GN=psbC PE=3 SV=1
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II.
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II.
One of the components of the core antenna complex of photosystem II. It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of photosystem II.
Buxus microphylla (taxid: 153571)
Close Homologs in the Non-Redundant Database Detected by BLAST
Score = 62.1 bits (151), Expect = 5e-13
Identities = 35/101 (34%), Positives = 45/101 (44%), Gaps = 30/101 (29%)
Query: 3 GKVIDTFPYILSEVFHLICSVILDFDNIYHAFLGLETFEESFSFFGY------------- 49
G+V+D FP+ + V HLI S +L F IYH+ G E EE SFFGY
Sbjct: 71 GEVVDIFPFFVVGVLHLISSAVLGFGGIYHSLRGPEKLEEYSSFFGYDWKDKNQMTNILG 130
Query: 50 ----------------TLYFRDLYDSWAPRDGE-RLEKLPT 73
+F +YD+WAP G+ RL PT
Sbjct: 131 YHLILLGIGALLLVAKACFFGGIYDTWAPGGGDVRLITNPT 171
This model describes the Photosystem II, 44kDa subunit (also called P6 protein, CP43) in bacterial and its equivalents in chloroplast of algae and higher plants. Photosystem II is in many ways functionally equivalent to bacterial reaction center. At the core of Photosystem II are several light harvesting cofactors including plastoquinones, pheophytins, phyloquinones etc. These cofactors are intimately associated with the polypeptides, which principally including subunits 44 kDa protein,DI, DII, Cyt.b, Cyt.f, iron-sulphur protein and others. Functinally 44 kDa subunit is imlicated in chlorophyll binding. Together they participate in the electron transfer reactions that lead to the net production of the reducting equivalents in the form of NADPH, which are used for reduction of CO2 to carbohydrates(C6H1206). Phosystem II operates during oxygenic photosynthesis and principal electron donor is H2O. Although no high resolution X-ray structural data is presently available, recently a 3D structure of the supercomplex has been described by cryo-electron microscopy. Besides a huge body of literature exits that describes function using a variety of biochemical and biophysical techniques [Energy metabolism, Electron transport, Energy metabolism, Photosynthesis]. Length = 432
>gnl|CDD|215911 pfam00421, PSII, Photosystem II protein
Score = 38.1 bits (89), Expect = 1e-04
Identities = 14/51 (27%), Positives = 20/51 (39%), Gaps = 4/51 (7%)
Query: 3 GKVIDTFPYILSEVFHLICSVILDFDNIYHAFLGLETFEES----FSFFGY 49
G DT+P + + HLI S +L + H+ L ES F
Sbjct: 69 GVWTDTYPVFVIAILHLISSAVLGAGGLLHSLLFPGDLAESEVPRARKFKL 119
This model represents a family of proteins from the Cyanobacteria, closely homologous to and yet distinct from PbsC, a chlorophyll a antenna protein of photosystem II. Members are not univerally present in Cyanobacteria, while the family has several members per genome in Prochlorococcus marinus, with seven members in a strain adapted to low light conditions. These antenna proteins may deliver light energy to photosystem I and/or photosystem II [Energy metabolism, Photosynthesis]. Length = 321
This model describes the Photosystem II, 44kDa subunit (also called P6 protein, CP43) in bacterial and its equivalents in chloroplast of algae and higher plants. Photosystem II is in many ways functionally equivalent to bacterial reaction center. At the core of Photosystem II are several light harvesting cofactors including plastoquinones, pheophytins, phyloquinones etc. These cofactors are intimately associated with the polypeptides, which principally including subunits 44 kDa protein,DI, DII, Cyt.b, Cyt.f, iron-sulphur protein and others. Functinally 44 kDa subunit is imlicated in chlorophyll binding. Together they participate in the electron transfer reactions that lead to the net production of the reducting equivalents in the form of NADPH, which are used for reduction of CO2 to carbohydrates(C6H1206). Phosystem II operates during oxygenic photosynthesis a
>TIGR03041 PS_antenn_a_b chlorophyll a/b binding light-harvesting protein
This model represents a family of proteins from the Cyanobacteria, closely homologous to and yet distinct from PbsC, a chlorophyll a antenna protein of photosystem II. Members are not univerally present in Cyanobacteria, while the family has several members per genome in Prochlorococcus marinus, with seven members in a strain adapted to low light conditions. These antenna proteins may deliver light energy to photosystem I and/or photosystem II.
>PF00421 PSII: Photosystem II protein; InterPro: IPR000932 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 intrinsic antenna proteins CP43 (PsbC) and CP47 (PsbB) found in the reaction centre of PSII. These polypeptides bind to chlorophyll a and beta-carotene and pass the excitation energy on to the reaction centre []. This family also includes the iron-stress induced chlorophyll-binding protein CP43' (IsiA), which evolved in cyanobacteria from a PSII protein to cope with light limitations and stress conditions. Under iron-deficient growth conditions, CP43' associates with PSI to form a complex that consists of a ring of 18 or more CP43' molecules around a PSI trimer, which significantly increases the light-harvesting system of PSI. IsiA can also provide photoprotection for PSII [].; GO: 0016168 chlorophyll binding, 0009767 photosynthetic electron transport chain, 0019684 photosynthesis, light reaction, 0009521 photosystem, 0016020 membrane; PDB: 3A0B_b 3A0H_b 3ARC_b 2AXT_B 1S5L_B 3BZ1_B 1IZL_L 1W5C_B 3KZI_B 4FBY_N ....
>PLN00068 photosystem II CP47 chlorophyll A apoprotein; Provisional
class: Membrane and cell surface proteins and peptides
fold: Photosystem II antenna protein-like
superfamily: Photosystem II antenna protein-like
family: Photosystem II antenna protein-like
domain: Photosystem II CP43 protein PsbC
species: Thermosynechococcus elongatus [TaxId: 146786]
Score = 50.2 bits (120), Expect = 2e-09
Identities = 34/93 (36%), Positives = 44/93 (47%), Gaps = 29/93 (31%)
Query: 3 GKVIDTFPYILSEVFHLICSVILDFDNIYHAFLGLETFEESFSFFGYT------------ 50
G+V+DTFP+ + V HLI S +L F +YHA G ET EE SFFGY
Sbjct: 77 GEVVDTFPFFVVGVVHLISSAVLGFGGVYHAIRGPETLEEYSSFFGYDWKDKNKMTTILG 136
Query: 51 -----------------LYFRDLYDSWAPRDGE 66
++F LYD+WAP G+
Sbjct: 137 FHLIVLGIGALLLVAKAMFFGGLYDTWAPGGGD 169
class: Membrane and cell surface proteins and peptides
fold: Photosystem II antenna protein-like
superfamily: Photosystem II antenna protein-like
family: Photosystem II antenna protein-like
domain: Photosystem II CP43 protein PsbC
species: Thermosynechococcus elongatus [TaxId: 146786]