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Spatial structure of the novel light-sensitive photoprotein berovin from the ctenophore Beroe abyssicola in the Ca2+-loaded apoprotein conformation state [Text] / G. A. Stepanyuk [et al.] // BBA-Proteins Proteomics. - 2013. - Vol. 1834, Is. 10. - P2139-2146, DOI 10.1016/j.bbapap.2013.07.006. - Cited References: 64. - This work was supported by RFBR grants 09-04-00172, 12-04-00131, 12-04-91153, and NSFC 31270795 and 31021062, by the Programs of the Government of Russian Federation "Measures to Attract Leading Scientists to Russian Educational Institutions" (grant 11.G34.31.0058) "Molecular and Cellular Biology" of the RAS. It was also supported in part with funds from the National Institutes of Health (GM62407), The Georgia Research Alliance and the University of Georgia Research Foundation. Data were collected at Southeast Regional Collaborative Access Team (SER-CAT) 22-ID beamline at the Advanced Photon Source, Argonne National Laboratory. Supporting institutions may be found at www.ser-cat.org/members.html. The use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. W-31-109-Eng-38. . - ISSN 1570-9639

РУБ Biochemistry & Molecular Biology + Biophysics
Рубрики:
CALCIUM-ACTIVATED PHOTOPROTEINS
   COELENTERAZINE-BINDING PROTEIN
   CRYSTAL-STRUCTURE
   MNEMIOPSIS-SP
   CA2+-REGULATED PHOTOPROTEINS
   OBELIN BIOLUMINESCENCE
   ANGSTROM RESOLUTION
   RECOMBINANT OBELIN
   RENILLA-RENIFORMIS
   APO-OBELIN
Кл.слова (ненормированные):
Coelenterazine -- Calcium -- Bioluminescence -- Luciferase
Аннотация: The bright bioluminescence of ctenophores, found in oceans worldwide, is determined by Ca2+-regulated photoproteins, functionally identical to and sharing many properties of hydromedusan photoproteins. In contrast, however, the ctenophore photoproteins are extremely sensitive to UV and visible light over the range of their absorption spectrum. The spatial structure of a novel light-sensitive photoprotein from the ctenophore Beroe abyssicola in its apoform bound with three calcium ions is determined at 2.0 angstrom. We demonstrate that the apoberovin is a slightly asymmetrical compact globular protein formed by two domains with a cavity in the center, which exactly retains the fold architecture characteristic of hydromedusan photoproteins despite their low amino acid sequence identity. However, the structural alignment of these two photoprotein classes clearly shows that despite the high similarity of shape and geometry of their coelenterazine-binding cavities, their interiors differ drastically. The key residues appearing to be crucial for stabilizing the 2-hydroperoxycoelenterazine and for formation of the emitter in hydromedusan photoproteins, are replaced in berovin by amino acid residues having completely different side chain properties. Evidently, these replacements must be responsible for the distinct properties of ctenophore photoproteins such as sensitivity to light or the fact that the formation of active photoprotein from apophotoprotein, coelenterazine, and oxygen is more effective at alkaline pH. (C) 2013 Elsevier B.V. All rights reserved.

WOS
Держатели документа:
[Stepanyuk, Galina A.
Liu, Zhi-Jie
Lee, John
Rose, John
Wang, Bi-Cheng] Univ Georgia, Dept Biochem & Mol Biol, Athens, GA 30602 USA
[Stepanyuk, Galina A.
Burakova, Ludmila P.
Vysotski, Eugene S.] Russian Acad Sci, Inst Biophys, Photobiol Lab, Siberian Branch, Krasnoyarsk 660036, Russia
[Liu, Zhi-Jie] Chinese Acad Sci, Inst Biophys, Natl Lab Biomacromol, Beijing 100101, Peoples R China
[Liu, Zhi-Jie] Kunming Med Univ, Inst Mol & Clin Med, Kunming 650500, Peoples R China
[Burakova, Ludmila P.
Vysotski, Eugene S.] Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Lab Bioluminescence Biotechnol, Krasnoyarsk 660041, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Stepanyuk, G.A.; Liu, Z.J.; Burakova, L.P.; Lee, J...; Rose, J...; Vysotski, E.S.; Wang, B.C.; RFBR [09-04-00172, 12-04-00131, 12-04-91153]; NSFC [31270795, 31021062]; Government of Russian Federation of the RAS [11.G34.31.0058]; National Institutes of Health [GM62407]; Georgia Research Alliance; University of Georgia Research Foundation; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [W-31-109-Eng-38]

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Nutritional biomarkers: Current view and future perspectives / S. Pande [et al.] // Crit. Rev. Food Sci. Nutr. - 2018. - Vol. 58, Is. 18. - P3055-3069, DOI 10.1080/10408398.2017.1350136. - Cited References:163. - The research was partially supported by the Russian Foundation for Basic Research [Grant No 16-06-00-439], the Russian Ministry of Education, Post-Doctoral Program of Project "5-100" [Grant No. M 2.2.3] and the Russian Foundation for Basic Research in collaboration with Krasnoyarsk Regional Fund for Scientific and Technical Activity Support [project No 16-44-242126]. . - ISSN 1040-8398. - ISSN 1549-7852

РУБ Food Science & Technology + Nutrition & Dietetics
Рубрики:
PROMOTES CELL-SURVIVAL
FATTY-ACID OXIDATION
CALORIE RESTRICTION
Кл.слова (ненормированные):
Sirtuins -- NAD -- biomarker -- proteomics -- calorie restriction -- longitivity
Аннотация: There is a poor relationship between nutrient intake and existing nutritional biomarkers due to variety of factors affecting their sensitivity and specificity. To explore the impact of nutrients at molecular level and devising a sensitive biomarker, proteomics is a central technology with sirtuins as one of the most promising nutritional biomarker. Sirtuins (seven mammalian sirtuins reported so far) have been reported to perform protein deacetylases and ADP-ribosyltransferases activity. It is distributed in different cellular compartments thereby controlling several metabolic processes. Sirtuins are oxidized nicotinamide adenine dinucleotide dependent, which implicates a direct effect of the metabolic state of the cell on its activity. Calorie restriction upregulates the mammalian sirtuin protein levels in variety of tissues and organs where it acts upon both histone and nonhistone substrates. Sirtuin senses nutrient availability and impacts gluconeogenesis, glycolysis, and insulin sensitivity. It deacetylates and inhibits the nuclear receptor that activates fat synthesis and adipogenesis in the body, leading to fat loss and bringing favorable cellular and health changes. Sirtuins mediates intracellular response that promotes cell survival, DNA damage repair thereby increasing the cell longitivity. The activation of sirtuins brings a wide spectrum of other health benefits and its activity levels are indicative of nutritional status as well as disease progression in cancer, inflammation, obesity, cardiovascular diseases, and viral infections. There are several foods that activate sirtuin activity and offer significant health benefits by their consumption.

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Смотреть статью,
Scopus
Держатели документа:
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Dept Biophys, Lab Bioluminescent Biotechnol, Krasnoyarsk, Russia.
Krasnoyarsk State Med Univ, Krasnoyarsk, Russia.
RAS, Siberian Branch, Inst Biophys, Fed State Budgetary Sci Inst, Krasnoyarsk, Russia.
Fed State Budgetary Sci Inst, Sci Res Inst Med Problems North, Krasnoyarsk, Russia.

Доп.точки доступа:
Pande, Shubhra; Kratasyuk, Valentina A.; Medvedeva, Nadezhda N.; Kolenchukova, Oxana A.; Salmina, Alla B.; Kratazyuk, Valentina; KAYITESI, EUGENIE; Russian Foundation for Basic Research [16-06-00-439]; Russian Ministry of Education [M 2.2.3]; Russian Foundation for Basic Research; Krasnoyarsk Regional Fund for Scientific and Technical Activity Support [16-44-242126]

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