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You searched for subject:(Mn Catalase). Showing records 1 – 3 of 3 total matches.

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North Carolina State University

1. Peacock, Trent Jarrell. Biological Role of Mn-catalase in Select Lactobacilli.

Degree: PhD, Microbiology, 2008, North Carolina State University

Subjects/Keywords: role; lactobacilli; Mn-catalase

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Peacock, T. J. (2008). Biological Role of Mn-catalase in Select Lactobacilli. (Doctoral Dissertation). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/4007

Chicago Manual of Style (16th Edition):

Peacock, Trent Jarrell. “Biological Role of Mn-catalase in Select Lactobacilli.” 2008. Doctoral Dissertation, North Carolina State University. Accessed August 11, 2020. http://www.lib.ncsu.edu/resolver/1840.16/4007.

MLA Handbook (7th Edition):

Peacock, Trent Jarrell. “Biological Role of Mn-catalase in Select Lactobacilli.” 2008. Web. 11 Aug 2020.

Vancouver:

Peacock TJ. Biological Role of Mn-catalase in Select Lactobacilli. [Internet] [Doctoral dissertation]. North Carolina State University; 2008. [cited 2020 Aug 11]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/4007.

Council of Science Editors:

Peacock TJ. Biological Role of Mn-catalase in Select Lactobacilli. [Doctoral Dissertation]. North Carolina State University; 2008. Available from: http://www.lib.ncsu.edu/resolver/1840.16/4007


Freie Universität Berlin

2. Pudollek, Susanne. Multifrequency EPR and ENDOR spectroscopy of the S2-state of the manganese complex in photosystem II.

Degree: 2012, Freie Universität Berlin

Plants, green algae and cyanobacteria alike use oxygenic photosynthesis to transform harvested light into chemical energy. The oxygen which is released from oxidised water molecules forms the basis of animal and human life. The reaction cycle of catalytic dissociation of the water molecules takes place within a large protein complex called Photosystem II (PSII). Its catalytic center is the WaterOxidizing Complex (WOC) comprising four manganese and a calcium ion. The underlying reaction mechanism is not yet understood. The requisite for the development of appropriate models to explain its behavior is an accurate knowledge of its structure and physical/chemical properties in every step of the catalytic cycle. Electron Paramagnetic Resonance (EPR) and related methods employ the interaction between unpaired electrons in an external magnetic field by measurement of their spin state’s energy splitting. The observed energy differences carry information about the paramagnetic center and its immediate surrounding. Hence, this method is perfectly suited to selectively investigate the paramagnetic S2-state of the WOC within PSII. Initially, the capabilities and benefits of multi-frequency EPR and ENDOR were demonstrated on a di-manganese model system, Mn-Catalase, studying its characteristics and magnetic parameters. These methods then were transferred onto the WOC S2-state in native PSII from cyanobacterium Thermosynechococcus elongatus and onto the same system, but grown in nutrient containing strontium exclusively, which is the only known functional replacement for calcium. In comparison to native PSII, the S2-state of PSII-Sr exhibits changes in its EPR and ENDOR spectra. To date, these are insufficiently characterized. By means of multi-frequency EPR and ENDOR investigation of both systems in solution, their properties could be determined. Q-band EPR and 55Mn-ENDOR spectroscopy on native PSII crystals allowed for an assignment not only of the fundamental components of the 55Mn hyperfine couplings, but also of their orientations within the crystal frame. In analogy to structural motives from said di- manganese model systems, correlations between magnetic parameters and local structural characteristics could be found. Q-band 1H-ENDOR spectroscopy on S2-state in solution and in crystal permitted the characterization of nearby protons coupled to the WOC, where the three largest couplings could be oriented within the crystal frame. With the aid of theoretical structure models of the WOC in its S2-state, an assignment of selected 1H hyperfine couplings to actual WOC ligating protons was postulated. Advisors/Committee Members: [email protected] (contact), w (gender), Prof. Dr. Robert Bittl (firstReferee), Prof. Dr. Holger Dau (furtherReferee).

Subjects/Keywords: EPR; ENDOR; photosystem II; PSII; Mn-Catalase; photosynthesis; WOC; water-oxidizing complex; 500 Naturwissenschaften und Mathematik::530 Physik

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Pudollek, S. (2012). Multifrequency EPR and ENDOR spectroscopy of the S2-state of the manganese complex in photosystem II. (Thesis). Freie Universität Berlin. Retrieved from http://dx.doi.org/10.17169/refubium-13149

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Pudollek, Susanne. “Multifrequency EPR and ENDOR spectroscopy of the S2-state of the manganese complex in photosystem II.” 2012. Thesis, Freie Universität Berlin. Accessed August 11, 2020. http://dx.doi.org/10.17169/refubium-13149.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Pudollek, Susanne. “Multifrequency EPR and ENDOR spectroscopy of the S2-state of the manganese complex in photosystem II.” 2012. Web. 11 Aug 2020.

Vancouver:

Pudollek S. Multifrequency EPR and ENDOR spectroscopy of the S2-state of the manganese complex in photosystem II. [Internet] [Thesis]. Freie Universität Berlin; 2012. [cited 2020 Aug 11]. Available from: http://dx.doi.org/10.17169/refubium-13149.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pudollek S. Multifrequency EPR and ENDOR spectroscopy of the S2-state of the manganese complex in photosystem II. [Thesis]. Freie Universität Berlin; 2012. Available from: http://dx.doi.org/10.17169/refubium-13149

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

3. Šantl Letonja, Marija. POMEN GENSKIH POLIMORFIZMOV OKSIDACIJSKEGA STRESA PRI ATEROSKLEROZI VRATNIH ARTERIJ BOLNIKOV S SLADKORNO BOLEZNIJO TIPA 2.

Degree: 2012, Univerza v Mariboru

Ateroskleroza je eden glavnih vzrokov obolevnosti in umrljivosti v razvitem svetu. Ateroskleroza karotidnih arterij je kazalnik sistemske ateroskleroze in izvor embolizmov, ki povzročijo prehodno ishemično atako ali možgansko kap. Oksidativni stres igra pomembno vlogo pri patogenezi skadkorne bolezni tipa 2 (SB), ki jo označujeta pospešen razvoj mikro- in makrovaskularnih zapletov. Miokardni infarkt in možganska kap se pri bolnikih s SB pojavljata do 4-krat pogosteje kot pri bolnikih brez SB in sta povezana z večjim številom zapletov in večjo umrljivostjo. Povečane dovzetnosti za aterosklerozo pri bolnikih s SB ne moremo v celoti pojasniti samo s pomočjo klasičnih dejavnikov tveganja. Stopnja oksidativnega stresa se pri posameznikih razlikuje in je vsaj delno genetsko pogojena. Genetski označevalci, ki so vpleteni v oksidativni stres, bi lahko igrali pomembno vlogo pri aterosklerozi karotidnih arterij pri bolnikih s SB. Postavili smo hipotezo, da genetski dejavniki, ki povečujejo oksidativni stres, vplivajo na nastanek ateroskleroze karotidnih arterij pri bolnikih s SB. Z asociacijsko raziskavo smo želeli ugotoviti, ali obstaja povezava med polimorfizmom +35A/C gena za SOD1, polimorfizmom Val16Ala gena za SOD2, polimorfizmom Gly/Arg gena za SOD3, polimorfizmom -262 C/T gena za katalazo, polimorfizmom Ile105Val gena za GSTP1, polimorfizem genov za GSTM1 in GSTT1, polimorfizmom 242 C/T gena za p22phox NAD(P)H, polimorfizmom -463A/G gena za mieloperoksidazo, polimorfizmom 4a/b gena za eNOS in polimorfizmom 277 A/G gena za iNOS in aterosklerozo karotidnih arterij pri bolnikih s SB. V presečno raziskavo smo vključili 287 bolnikov s SB tipa 2 in 158 zdravih oseb, ki so bile po spolu in starosti primerljive s preiskovanci s SB. Na ta način smo dobili referenčno skupino za primerjavo debeline intime in medije (DIM) v Pomurju. Preiskovancem smo opravili dvojno barvno dopplersko preiskavo karotidnih arterij in biokemijske preiskave s standardnimi bio-kemijskimi postopki. Vsi preiskovanci so bili slovanskega porekla in niso bili v sorodu. Poli-morfizme smo testirali s pomočjo verižne reakcije s polimerazo, s pomočjo multipleks reakcije PCR in z metodo PCR v realnem času. V pomurski populaciji je DIM pri bolnikih s SB značilno večja kot v zdravih preiskovancih brez diabetesa (1,09 ± 0,12 mm vs. 0,98 ± 0,14 mm

P=0,001). Pri bolniki s SB smo ugotovili, da je ničelni alel GSTT1-0 gena za GSTT1 tvegani alel za večji seštevek plakov na karotidnih arterijah. Genotip TT polimorfizma C242T gena za p22phox NAD(P)H je zaščitni genotip pred aterosklerozo karotid pri bolnikih s SB tipa 2 v Pomurju. Genotip bb polimorfizma 4a/b v intronu 4 gena za eNOS je tvegani genotip za visoki seštevek plakov. Z multivariatno regresijsko analizo smo ugotovili, da imajo nosilci alela T polimorfizma -262 C/T gena za katalazo pomembno nižjo nevarnost tveganja za visok seštevek plakov kot nosilci alela C. Z asociacijsko raziskavo nismo ugotovili povezave med polimorfizmi +35A/C gena za SOD1, Val16Ala gena za SOD2, Gly/Arg gena za SOD3, Ile105Val gena za…

Advisors/Committee Members: Petrovič, Danijel.

Subjects/Keywords: sladkorna bolezen; karotidna ateroskleroza; klasični dejavniki tveganja za srčnožilna obolenja; debelina intime - medije; seštevek plakov; debelina plakov; oksidativni stres; polimorfizmi genov oksidativnega stresa; Cu/Zn superoksidna dismutaza; Mn superoksidna dismutaza; zunajcelična superoksidna dismutaza; katalaza; mieloperoksidaza; glutationska transferaza; NAD(P)H-oksidaza; endotelna dušikova oksidaza; inducibilna dušikova oksidaza; Diabetes mellitus; carotid atherosclerosis; classic risk factors for cardiovascular disease; the thickness of the intima - media; the sum of plaques; plaque thickness; oxidative stress; gene polymorphisms of oxidative stress; Cu / Zn superoxide dismutase; Mn superoxide dismutase; extracellular superoxide dismutase; catalase; mieloperoksidaza; glutathione transferase; NAD (P) H-oxidase; endothelial nitric oxidase; inducible nitric oxidase

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Šantl Letonja, M. (2012). POMEN GENSKIH POLIMORFIZMOV OKSIDACIJSKEGA STRESA PRI ATEROSKLEROZI VRATNIH ARTERIJ BOLNIKOV S SLADKORNO BOLEZNIJO TIPA 2. (Doctoral Dissertation). Univerza v Mariboru. Retrieved from https://dk.um.si/IzpisGradiva.php?id=22871 ; https://dk.um.si/Dokument.php?id=30914&dn= ; https://plus.si.cobiss.net/opac7/bib/7868211?lang=sl

Chicago Manual of Style (16th Edition):

Šantl Letonja, Marija. “POMEN GENSKIH POLIMORFIZMOV OKSIDACIJSKEGA STRESA PRI ATEROSKLEROZI VRATNIH ARTERIJ BOLNIKOV S SLADKORNO BOLEZNIJO TIPA 2.” 2012. Doctoral Dissertation, Univerza v Mariboru. Accessed August 11, 2020. https://dk.um.si/IzpisGradiva.php?id=22871 ; https://dk.um.si/Dokument.php?id=30914&dn= ; https://plus.si.cobiss.net/opac7/bib/7868211?lang=sl.

MLA Handbook (7th Edition):

Šantl Letonja, Marija. “POMEN GENSKIH POLIMORFIZMOV OKSIDACIJSKEGA STRESA PRI ATEROSKLEROZI VRATNIH ARTERIJ BOLNIKOV S SLADKORNO BOLEZNIJO TIPA 2.” 2012. Web. 11 Aug 2020.

Vancouver:

Šantl Letonja M. POMEN GENSKIH POLIMORFIZMOV OKSIDACIJSKEGA STRESA PRI ATEROSKLEROZI VRATNIH ARTERIJ BOLNIKOV S SLADKORNO BOLEZNIJO TIPA 2. [Internet] [Doctoral dissertation]. Univerza v Mariboru; 2012. [cited 2020 Aug 11]. Available from: https://dk.um.si/IzpisGradiva.php?id=22871 ; https://dk.um.si/Dokument.php?id=30914&dn= ; https://plus.si.cobiss.net/opac7/bib/7868211?lang=sl.

Council of Science Editors:

Šantl Letonja M. POMEN GENSKIH POLIMORFIZMOV OKSIDACIJSKEGA STRESA PRI ATEROSKLEROZI VRATNIH ARTERIJ BOLNIKOV S SLADKORNO BOLEZNIJO TIPA 2. [Doctoral Dissertation]. Univerza v Mariboru; 2012. Available from: https://dk.um.si/IzpisGradiva.php?id=22871 ; https://dk.um.si/Dokument.php?id=30914&dn= ; https://plus.si.cobiss.net/opac7/bib/7868211?lang=sl

.