While its structure is still unknown, biochemical and protein sequence analyses suggest that it is similar to photosystem I (PS I), with two BChl a forming a special pair P840, four Chl a serving as pairs of accessory and primary electron acceptor (A0) pigments and 14 BChl a constituting ...
From femtosecond transient absorption data,we infer an ultrafast anisotropy decay of about 0.5 ps which is assigned to energy transfer among the immediate pigments of the reaction center (primary donor and accessory Chls and/or pheophytins).
AM1 calculations on blepharismins and oxyblepharismins, which are related photosensory pigments of certain protists, revealed that the accessory substituen... TG Dax,C Etzlstorfer,H Falk - 《Monatshefte Für Chemie》 被引量: 19发表: 2000年 Multiple Functions of the RNA-Binding Protein HuR ...
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Subpicosecond oscillations in the B (accessory bacteriochlorophylls) band were found in native and BB-modified reaction centers from Rhodobacter sphaeroides R26 and of the mutant YM210W at 293 K using 30 fs excitation pulses at 865 nm. The (30 ± 3) and (12 ± 2) cm-1 modes were found...
The IFT machineries are composed of microtubule motors, IFT complexes and accessory proteins [20] (Fig. 3A). Depending on the direction of IFT, the movement of cargo proteins along the axoneme is catalyzed by two different sets of motor proteins: kinesins and dyneins. Anterograde IFT, which...
complexes with the genetically alteredChl2BorChl2Amonomers. The review gives a brief description of the main methods for analyzing data obtained using femtosecond absorption spectroscopy. The energy levels of excited and charge-transfer intermediates arising in the cyanobacterial PS I are critically ...
that the triplet state at low temperatures is located on one of the accessory chlorophylls, ChlD1. This localization is in agreement with analysis of optical spectroscopy data (Diner et al.2001; Zabelin et al.2016; Takegawa et al.2019). Despite the long-lived radical cation P680·+and the...
It encompasses eight cofactors which are embedded in the protein: two primary chlorophylls P D1 and P D2, two accessory chlorophylls Chl D1 and Chl D2, two pheophytins Pheo D1 and Pheo D2, and two peripheral chlorophylls Phlz D1 and Phlz D2. All the cofactors are located ...
In PS II, absorption of a photon first results in excitation of photosynthetic pigments and very rapidly thereaf- ter in the primary charge separation reaction between the primary donor of PS II, commonly referred and the first electron acceptor, pheophytin (Pheo). In a series of subsequent ...