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Crystal structure of spinach major light-harvesting complex at 2.72 Å resolution
The first X-ray structure of LHC-II in icosahedral proteoliposome assembly at atomic detail is reported, finding the xanthophyll-cycle carotenoid at the monomer–monomer interface may be involved in the non-radiative dissipation of excessive energy, one of the photoprotective strategies that have evolved in plants.
Molecular basis of photoprotection and control of photosynthetic light-harvesting
A spectroscopic analysis of this crystal form is presented, and the specific changes in configuration of its pigment population that give LHCII the intrinsic capability to regulate energy flow are identified, which provides a molecular basis for understanding the control of photosynthetic light-harvesting.
The first structure of an aldehyde dehydrogenase reveals novel interactions between NAD and the Rossmann fold
Sequence comparisons of the class 3 ALDH with other ALDHs indicate a similar polypeptide fold, novel NAD-binding mode and catalytic site for this family, and a mechanism for enzymatic specificity and activity is postulated.
Structure of spinach photosystem II-LHCII supercomplex at 3.2 Å resolution.
By analysing the closely connected interfacial chlorophylls, this work has obtained detailed insights into the energy-transfer pathways between the antenna and core complexes and revealed a homodimeric supramolecular system.
Structural insights into energy regulation of light-harvesting complex CP29 from spinach
Two special clusters of pigment molecules, namely a615–a611–a612–Lut and Vio(Zea)–a603–a609, have been identified and might function as potential energy-quenching centers and as the exit or entrance in energy-transfer pathways.
Structure and assembly mechanism of plant C2S2M2-type PSII-LHCII supercomplex
Cryo–electron microscopy structures of a supercomplex consisting of a dimeric core and two strongly bound and two moderately bound LHCIIs (C2S2M2), is reported, which is the dominant form in plants acclimated to limited light.
Crystal Structure of Brain Pyridoxal Kinase, a Novel Member of the Ribokinase Superfamily*
Results have shown that pyridoxal kinase, as an enzyme obeying random sequential kinetics in catalysis, does not possess a lid shape structure common to all kinases in the ribokinase superfamily.
Crystal structure of human sulfotransferase SULT1A3 in complex with dopamine and 3'-phosphoadenosine 5'-phosphate.
Structure of the maize photosystem I supercomplex with light-harvesting complexes I and II
Each subunit relays excitation to PSI core through a pair of chlorophyll molecules, thus revealing previously unseen paths for energy transfer between the antennas and the PSI cores, according to cryo–electron microscopy.