Marcel Tabak
Overview
Explore the profile of Marcel Tabak including associated specialties, affiliations and a list of published articles.
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Articles
51
Citations
141
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Recent Articles
1.
Barros A, Caruso C, Alves F, Tabak M, Carvalho F
Eur Biophys J
. 2020 Jul;
49(6):449-462.
PMID: 32681183
The structural study of small heme-containing proteins, such as myoglobin, in the apo-form lacking heme has been extensively described, but the characterization and stability of the giant Glossoscolex paulistus hemoglobin...
2.
Carvalho F, Caruso C, Nascimento E, Oliveira T, Bachega J, Tabak M
Int J Biol Macromol
. 2019 Apr;
133:30-36.
PMID: 30986471
Glossoscolex paulistus hemoglobin structure is composed of 144 globin chains and 36 polypeptide chains lacking the heme group, with a total molecular mass of 3600 kDa. The current study focuses...
3.
Libardi S, Alves F, Tabak M
Int J Biol Macromol
. 2018 Jan;
111:271-280.
PMID: 29305213
The giant extracellular hemoglobin from earthworm Glossoscolex paulistus (HbGp) reacts with hydrogen peroxide, displaying peroxidase activity in the presence of guaiacol. The formation of ferryl-HbGp (compound II) from the peroxidase...
4.
Barros A, Barioni M, Carvalho F, Ito A, Tabak M
Int J Biol Macromol
. 2017 Feb;
98:777-785.
PMID: 28192141
Glossoscolex paulistus extracellular hemoglobin (HbGp) stability has been followed, in the presence of urea, using fluorescein isothiocyanate (FITC). Binding of FITC to HbGp results in a significant quenching of probe...
5.
Carvalho F, Alves F, Tabak M
Int J Biol Macromol
. 2016 Jul;
92:670-681.
PMID: 27456123
Glossoscolex paulistus hemoglobin (HbGp) is an oligomeric multisubunit protein with molecular mass of 3600kDa. In the current study, the interaction of sodium dodecyl sulfate (SDS) and cetyl trimethylammonium chloride (CTAC)...
6.
Caruso C, Biazin E, Carvalho F, Tabak M, Bachega J
J Inorg Biochem
. 2016 May;
161:63-72.
PMID: 27221949
In this work we investigate the presence of divalent cations bound to the Glossoscolex paulistus (HbGp) hemoglobin and their effect over the protein stability and the peroxidase (POD) activity. Atomic...
7.
Carvalho J, Carvalho F, Santiago P, Tabak M
Eur Biophys J
. 2016 Mar;
45(6):549-63.
PMID: 27017354
Oxy-HbRa thermal stability was evaluated by dynamic light scattering (DLS) and small-angle X-ray scattering (SAXS) at pH 5.0, 7.0, 8.0, and 9.0. DLS results show that oxy-HbRa, at pH 7.0...
8.
Alves F, Carvalho F, Carvalho J, Tabak M
Biopolymers
. 2015 Nov;
105(4):199-211.
PMID: 26574155
In this work, isothermal titration and differential scanning calorimetric methods, in combination with pyrene fluorescence emission and dynamic light scattering have been used to investigate the interaction of dodecyltrimethylammonium bromide...
9.
Bachega J, Vasconcelos Maluf F, Andi B, Pereira H, Falsarella Carazzollea M, Orville A, et al.
Acta Crystallogr D Biol Crystallogr
. 2015 Jun;
71(Pt 6):1257-71.
PMID: 26057666
The sequences of all seven polypeptide chains from the giant haemoglobin of the free-living earthworm Glossoscolex paulistus (HbGp) are reported together with the three-dimensional structure of the 3.6 MDa complex...
10.
Barros A, Carvalho F, Alves F, Carvalho J, Tabak M
Int J Biol Macromol
. 2014 Dec;
74:327-36.
PMID: 25546245
Glossoscolex paulistus extracellular hemoglobin (HbGp) stability has been monitored in the presence of denaturant agents. 8-Anilino-1-naphtalene-sulfonic acid (ANS) was used, and spectroscopic and hydrodynamic studies were developed. Dodecyltrimethylammonium bromide (DTAB)...