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master's thesis
Utjecaj glikozilacije, sinergističkog aniona i pH na vezanje željeza na humani serumski transferin
Zagreb: University of Zagreb, Faculty of Pharmacy and Biochemistry, 2020. urn:nbn:hr:163:772009
Saraga, Ria
University of Zagreb
Faculty of Pharmacy and Biochemistry
Department of general and inorganic chemistry

Institutional repository: Repository of Faculty of Pharmacy and Biochemistry University of Zagreb

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Saraga, R. (2020). Utjecaj glikozilacije, sinergističkog aniona i pH na vezanje željeza na humani serumski transferin (Master's thesis). Zagreb: University of Zagreb, Faculty of Pharmacy and Biochemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:163:772009

Saraga, Ria. "Utjecaj glikozilacije, sinergističkog aniona i pH na vezanje željeza na humani serumski transferin." Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, 2020. https://urn.nsk.hr/urn:nbn:hr:163:772009

Saraga, Ria. "Utjecaj glikozilacije, sinergističkog aniona i pH na vezanje željeza na humani serumski transferin." Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, 2020. https://urn.nsk.hr/urn:nbn:hr:163:772009

Saraga, R. (2020). 'Utjecaj glikozilacije, sinergističkog aniona i pH na vezanje željeza na humani serumski transferin', Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, accessed 04 September 2024, https://urn.nsk.hr/urn:nbn:hr:163:772009

Saraga R. Utjecaj glikozilacije, sinergističkog aniona i pH na vezanje željeza na humani serumski transferin [Master's thesis]. Zagreb: University of Zagreb, Faculty of Pharmacy and Biochemistry; 2020 [cited 2024 September 04] Available at: https://urn.nsk.hr/urn:nbn:hr:163:772009

R. Saraga, "Utjecaj glikozilacije, sinergističkog aniona i pH na vezanje željeza na humani serumski transferin", Master's thesis, University of Zagreb, Faculty of Pharmacy and Biochemistry, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:163:772009

Metadata
TitleUtjecaj glikozilacije, sinergističkog aniona i pH na vezanje željeza na humani serumski transferin
Title (english)Influence of glycosylation, synergistic ion and pH on iron binding to human serum transferrin
AuthorRia Saraga
MentorTin Weitner (mentor)
Committee memberTin Weitner (predsjednik povjerenstva)
Committee memberMario Gabričević (član povjerenstva)
Committee memberDavor Šakić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Pharmacy and Biochemistry
(Department of general and inorganic chemistry)
Zagreb
Defense date and country2020-09-30, Croatia
Scientific / art field,
discipline and subdiscipline		BIOMEDICINE AND HEALTHCARE
Pharmacy
Pharmacy
Abstract
U sklopu ovog diplomskog rada proučavan je utjecaj promjene glikozilacije transferina, sinergističkog aniona te pH pufera na konstantu vezanja željeza. Ispitivanja su se provodila u MES puferu pri pH 5,6 i temperaturi 25°C uz dodatak karbonata ili oksalata kao sinergijskih aniona. Korištene su tehnike UV-Vis spektrofotometrije i fluorescencije. Za izračun konstanti K1 i K2, koje opisuju nastanak monoferičnog i diferičnog transferina, korišten je program ReactLab™ EQUILIBRIA. Dobivene konstante i titracijske krivulje ukazuju na to da se prvo željezo veže s najvećim afinitetom na sijalizirani transferin u prisutnosti karbonata. Također, željezo se veže većim afinitetom na sijalizirani transferin s karbonatom kao sinergističkim anionom u odnosu na sijalizirani transferin s oksalatom. U prisutnosti oksalata kao sinergističkog aniona željezo se jače veže na desijalizirani transferin. Usporedbom konstanti ravnoteže pri pH 5,6 i pH 7,4 zaključujemo da se željezo jače veže na transferin pri fiziološkom pH. Promjenom glikozilacije, sinergističkog iona te pH, mijena se afinitet vezanja željeza na transferin, a time i koncentracija slobodnog i potencijalno toksičnog željeza u krvi.
Abstract (english)
As part of this thesis, it was investigated how does the change in glycosylation pattern, synergistic anion and pH of a buffer effect iron binding constant. All experiments were carried out by UV-Vis and fluorescence spectroscopy in MES buffer, with carbonate or oxalate, at pH 7.4 and 25° C. The ReactLab ™ EQUILIBRIA program was used to calculate the constants K1 and K2, which describe the formation of monoferric and diferric transferrin. The obtained constants and titration curves indicate that the first iron binds with the highest affinity to sialylated transferrin with carbonate. Also, iron binds with higher affinity to sialylated transferrin with carbonate as a synergistic anion compared to sialylated transferrin with oxalate, and in the presence of oxalate as a synergistic anion, iron binds more strongly to desialized transferrin. By comparing the equilibrium constants at pH 5.6 and pH 7.4, we conclude that iron is more strongly bound to transferrin at physiological pH. By changing glycosylation, synergistic ion and pH, the binding affinity of iron to transferrin changes and thus the concentration of free, potentially toxic, iron in the blood.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:163:772009
Study programmeTitle: Pharmacy
Study programme type: university
Study level: integrated undergraduate and graduate
Academic / professional title: magistar/magistra farmacije (magistar/magistra farmacije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2022-09-30
Terms of useLicence In copyright icon
Created on2022-09-02 12:32:28