... cyanobacteria KaiC solution structural change Trp fluorescence The circadian clock is an endogenous time-management system that rhythmically regulates biological activities to adapt to external periodic environmental changes. Since the discovery of a gene involved in the circadian clock in Drosophila...

... and CET in cyanobacteria is PetP, a ∼10 kDa protein that is also found in red algae but not in green algae and plants. Here, we used cryogenic electron microscopy to determine the structure of the Synechocystis sp. PCC 6803 cyt b 6 f complex in the presence and absence of PetP. Our structures show...

... for all oxygen-evolving photosynthetic organisms. It has a highly conserved structure and composition [ 1–3 ]. PSI consists of 11–14 protein subunits coordinating 94–96 chlorophylls (Chls), ∼24 carotenoids (Cars) and other cofactors [ 4–6 ]. In cyanobacteria, PSI is usually found in a trimeric...

.../ ). carotenoids chlorophyll chlorophyll synthase cyanobacteria photosynthesis xanthophyll Carotenoids are isoprenoid pigments that are categorised into two main classes, xanthophylls, which contain oxygen, and carotenes, which do not. In chlorophototrophs carotenoids are important for light...

...Shoki Ito; Takashi Osanai Metabolite production from carbon dioxide using sugar catabolism in cyanobacteria has been in the spotlight recently. Synechocystis sp. PCC 6803 ( Synechocystis 6803) is the most studied cyanobacterium for metabolite production. Previous in vivo analyses revealed...

... Anabaena Cas7 CRISPR CRISPR type I-D cyanobacteria RNA-binding protein RNA was isolated using TRIzol TM LS reagent (Invitrogen) by following the manufacturer's protocol. RNA associated with Alr1562 obtained from different imidazole elution fractions (i.e. 50 mM, 100 mM or 250 mM imidazole...

...Takaaki Suzuki; Akito Nishizawa; Masashi Kikuchi; Chihiro Nonaka; Mariko Komuro; Miki Nakayama; Yasuhiro Kashino; Masao Fukuda; Shigenobu Kimura Cyanobacteria are potentially useful photosynthetic microorganisms for bioremediation under oligotrophic environments. Here, the biphenyl degradation...

... to the opposite side of the γ subunit from the β-hairpin structure. Combined with structural analyses, our work provides experimental evidence supporting the molecular principle of how the insertion region of the γ subunit suppresses F 1 rotation during ATP hydrolysis. ADP inhibition cyanobacteria ε...

... Society 2018 ATPase Cancer cyanobacteria Hsp90 HtpG zerumbone The 90-kDa heat shock proteins (Hsp90s) are a family of molecular chaperones that are evolutionarily conserved. Hsp90 in co-operation with other chaperones and co-chaperones plays essential roles in stabilization, regulation...

... of G6PDH activity has also been reported in Anabaena 7120, and its related species Anabaena variabilis and Nostoc punctiforme ATCC 29133 [ 7 – 10 ]. G6PDH in these nitrogen-fixing cyanobacteria plays a crucial role in providing reducing power for nitrogenase. However, the molecular mechanism of redox...

... availability (Irr) [ 1 ]. Anabaena sp. PCC 7120 (hereinafter Anabaena sp.) contains three paralogues of the FUR family, namely FurA, FurB and FurC [ 2 ]. FurA is a global regulator in cyanobacteria and is mainly responsible for controlling iron homeostasis [ 3 ] and FurC has been proposed to act as a PerR...

...Manisha Banerjee; Dhiman Chakravarty; Anand Ballal Cysteine desulfurases, which supply sulfur for iron–sulfur cluster biogenesis, are broadly distributed in all phyla including cyanobacteria, the progenitors of plant chloroplasts. The SUF (sulfur utilization factor) system is responsible for Fe–S...

...Leah D. McGurn; Maryam Moazami-Goudarzi; Sean A. White; Tannu Suwal; Beant Brar; Jason Q. Tang; George S. Espie; Matthew S. Kimber CcaA is a β-carbonic anhydrase (CA) that is a component of the carboxysomes of a subset of β-cyanobacteria. This protein, which has a characteristic C-terminal...

... compilation © 2008 Biochemical Society 2008 bifunctional enzyme cyanobacteria linoleate diol synthase activity Nostoc sp. oxylipin prokaryotic lipoxygenase Eukaryotic algae have developed mechanisms involving lipid peroxidation by which they defend themselves against abiotic and biotic...

... and Synechocystis apo-carotenoid oxygenases (NosACO and SynACO) cyanobacteria opsin retinal Retinal represents the chromophore of the widespread family of retinylidene proteins, commonly called rhodopsins. These light-responsive seven-helix transmembrane proteins are common in archaea, algae and animals...

.... Four types of acyl-lipid desaturase, namely DesA, DesB, DesC, and DesD, acting at the Δ 12 , Δ 15 , Δ 9 , and Δ 6 positions of fatty acids respectively, have been characterized in cyanobacteria. These enzymes are specific for fatty acids bound to the sn −1 position of glycerolipids. In the present...

...Pengpeng Zhang; Natalia Battchikova; Virpi Paakkarinen; Hirokazu Katoh; Masako Iwai; Masahiko Ikeuchi; Himadri B. Pakrasi; Teruo Ogawa; Eva-Mari Aro NDH (NADH-quinone oxidoreductase)-1 complexes in cyanobacteria have specific functions in respiration and cyclic electron flow as well as in active CO...

...Dirk K. HINCHA; Martin HAGEMANN Many organisms accumulate compatible solutes under environmental stress conditions. Cyanobacteria accumulate compatible solutes in response to increased external salinity, with tolerance increasing from Suc (sucrose) or trehalose to 2- O -(α- D -glucopyranosyl...

...Heike SIELAFF; Elke DITTMANN; Nicole TANDEAU de MARSAC; Christiane BOUCHIER; Hans von DÖHREN; Thomas BÖRNER; Torsten SCHWECKE Microcystins are hepatotoxic, non-ribosomal peptides produced by several genera of freshwater cyanobacteria. Among other enzymic activities, in particular those of peptide...

... with iron-deficient conditions. cyanobacteria DNA binding iron stress Abbreviations used: DTNB, 5,5′-dithiobis-(2-nitrobenzoic acid); DTT, dithiothreitol; ESI-MS, electrospray ionization MS; Fur, ferric uptake regulator; MALDI-TOF, matrix-assisted laser desorption/ionization time of flight...