António M. Baptista
PhD, Research Scientist (Investigador Auxiliar)
Leader of the Molecular
Simulation Laboratory at ITQB.
Address
António M. Baptista
Instituto de Tecnologia Química e Biológica
Universidade Nova de Lisboa
Av. da República, EAN, ITQB II, Apartado 127
2781-901 Oeiras
Portugal
Phone : +351-21-4469619
Fax : +351-21-4411277
E-mail : 
WWW : http://www.itqb.unl.pt/~baptista
Research interests
- Molecular simulation of proteins using computational methods,
with emphasis on the study of electrostatic processes.
- Development of theoretical methods for molecular simulation.
- Application of statistical mechanics to the study of chemical
and biochemical systems.
Current research
- Inclusion of pH and electrostatic potential effects in molecular
dynamics simulations.
- Simulation of peptide- and protein-membrane interactions.
- Simulation of redox and protonation equilibria by Monte Carlo methods.
- Characterization of low-dimensional energy landscapes.
- Simulation of proteins in non-aqueous media.
- Theoretical aspects of the dielectric response in solute/solvent systems.
Software
- Programs MCRP,
PETIT, meadTools for the joint titration of electrons and protons,
using Poisson-Boltzmann and Monte Carlo methods.
Classes
Refereeing
- Biophysical Journal
- BMC Structural Biology
- Chemical Physics
- Proteins: Structure, Function and Bioinformatics
- Journal of the American Chemical Society
- Journal of Biological Inorganic Chemistry
- Journal of Chemical Physics
- Journal of Computational Chemistry
- Journal of Physical Chemistry B
Publications
- Pires, M. J., Martel, P., Baptista, A., Petersen, S. B., Willson, R.,
Cabral, J. M. S. (1994) Improving protein extraction yield in reversed
micellar systems through surface charge engineering.
Biotechnol. Bioeng. 44:773-780.
- Anthonsen, H. W., Baptista, A., Drabløs, F., Martel, P., Petersen,
S. B. (1994) The blind watchmaker and rational protein
engineering. J. Biotechnol. 36:185-220.
- Anthonsen, H. W., Baptista, A., Drabløs, F., Martel, P., Petersen,
S. B., Sebastião, M., Vaz, L. (1995) Lipases and esterases - a review of
their sequences, structure and evolution. In Biotechnology Annual
Review, vol. 1; El-Gewely, M. R. (Ed.), Elsevier, Amsterdam,
pp. 315-371.
- Baptista, A., Brautaseth, T., Drabløs, F., Martel, P., Valla, S.,
Petersen, S. B. (1995) Electrostatic studies of carbohydrate active
enzymes. In Progress in Biotechnology, vol. 10, "Carbohydrate
Bioengineering". Petersen, S. B., Svensson, B., Pedersen, S. (Eds.),
Elsevier, Amsterdam, pp. 181-204.
- Jones, R. A., Müller, T. B., Haraldseth, O., Baptista, A. M., Øksendal,
A. N. (1996) Cerebrovascular changes in rats during ischemia and
reperfusion: a comparison of BOLD and first pass bolus tracking
techniques. Magn. Reson. Med. 35:489-496.
- Martel, P. J., Baptista, A., Petersen, S. B. (1996) Protein
electrostatics. In Biotechnology Annual Review, vol. 2; El-Gewely,
M. R. (Ed.), Elsevier, Amsterdam, pp. 315-372.
- Sebastião, M. J., Martel, P., Baptista, A., Petersen, S. B., Cabral,
J. M. S., Aires-Barros, M. R. (1997) Predicting the partition coefficients
of a recombinant cutinase in polyethylene glycol/phosphate aqueous
two-phase systems. Biotechnol. Bioeng. 56:248-257.
- Baptista, A.M., Martel, P.J., Petersen, S.B. (1997) Simulation of
protein conformational freedom as a function of pH: constant-pH molecular
dynamics using implicit titration. Proteins, 27:523-544.
- Jones, R. A., Haraldseth, O., Baptista, A. M., Müller, T. B.,
Øksendal, A. N. (1997) A study of the contribution of changes in the
cerebral blood volume to the haemodynamic response to anoxia in rat
brain. NMR Biomed. 10:59-66.
- Baptista, A.M., Jonson, P.H., Hough, E., Petersen, S.B. (1998) The
origin of trypsin: evidence for multiple gene duplications in
trypsins. J. Mol. Evol. 47:353-362.
- Martel, P.J., Soares, C.M., Baptista, A.M., Fuxreiter, M.,
Náray-Szabó;, G., Louro, R.O., Carrondo, M.A. (1999) Comparative redox and
pKa calculations on cytochrome c3 from several
Desulfovibrio species using continuum electrostatic
methods. J. Biol. Inorg. Chem. 4:73-86.
- Baptista, A.M., Martel, P.J., Soares, C.M. (1999) Simulation of
electron-proton coupling with a Monte Carlo method: application to
cytochrome c3 using continuum electrostatics.
Biophys. J. 76:2978-2998.
- Mendes, J., Baptista, A.M., Carrondo, M.A., Soares, C.M. (1999)
Improved modelling of side-chains in proteins with rotamer-based methods: a
flexible rotamer model. Proteins, 37:530-543.
- Baptista, A.M., Soares, C.M. (2001) Some theoretical and computational
aspects of the inclusion of proton isomerism in the protonation equilibrium
of proteins. J. Phys. Chem. B, 105:293-309.
- Mendes, J., Baptista, A.M., Carrondo, M.A., Soares, C.M. (2001)
Incorporating implicit solvation in the self-consistent mean field theory
method: application to sidechain modelling and prediction of folding free
energies of protein mutants. J. Comp.-Aided Mol. Design, 15:721-740.
- Louro, R.O., Bento, I., Matias, P.M., Catarino, T., Baptista, A.M.,
Soares, C.M., Carrondo, M.A., Turner, D.L., Xavier, A.V. (2001)
Conformational component in the coupled transfer of multiple electrons and
protons in a monomeric tetrahaem cytochrome. J. Biol. Chem.
276:44044-44051.
- Teixeira, V.H., Soares, C.M., Baptista, A.M. (2002) Studies of the
reduction and protonation behavior of tetraheme cytochromes using atomic
detail. J. Biol. Inorg. Chem. 7:200-216.
- Baptista, A. M. (2002) Comment on "Explicit-solvent molecular dynamics
simulation at constant pH: methodology and application to small
amines". J. Chem. Phys. 116:7766-7768.
- Baptista, A. M., Teixeira, V. H., Soares, C. M. (2002) Constant-pH
molecular dynamics using stochastic titration. J. Chem. Phys.
117:4184-4200.
- Soares, C. M., Teixeira, V. H., Baptista, A. M. (2003) Protein
structure and dynamics in nonaqueous solvents. Insights from molecular
dynamics simulation studies. Biophys. J. 84:1628-1641.
- Bento, I., Teixeira, V. H., Baptista, A. M., Soares, C. M., Matias,
P. M., Carrondo, M. A. (2003) Redox-Bohr and other cooperativity effects in
the nine-heme cytochrome c from Desulfovibrio desulfuricans
ATCC 27774: crystallographic and modeling studies. J. Biol. Chem.
278:36455-36469.
- Bento, I., Matias, P. M., Baptista, A. M., da Costa, P. N., van Dongen,
W. M. A. M., Saraiva, L. M., Schneider, T. R., Soares, C. M., Carrondo,
M. A. (2004) Molecular basis for redox-Bohr and cooperative effects in
cytochrome c3 from Desulfovibrio desulfuricans
ATCC 27774: crystallographic and modelling studies of oxidised and reduced
high-resolution structures at pH 7.6. Proteins, 54:135-152.
- Eberini, I., Baptista, A. M., Gianazza, E., Fraternali, F.,
Beringhelli, T. (2004) Reorganization in apo- and holo-β-lactoglobulin
upon protonation of Glu89: molecular dynamics and pKa calculations.
Proteins, 54:744-758.
- Soares, C. M., Baptista, A. M., Pereira, M. M., Teixeira, M. (2004)
Investigation of protonatable residues in Rhodothermus marinus
caa3 haem-copper oxygen reductase. Comparison with
Paracoccus denitrificans aa3 haem-copper oxygen
reductase. J. Biol. Inorg. Chem. 9:124-134.
- Teixeira, V. H., Baptista, A. M., Soares, C. M. (2004) Modelling
electron transfer thermodynamics in protein complexes: Interaction between
two cytochromes c3. Biophys. J. 86:2773-2785.
- Victor, B. L., Baptista, A. M., Soares, C. M. (2004)
Theoretical identification of of proton channels in the quinol oxidase
aa3 of Acidianus ambivalens. Biophys. J.
87:4316-4325.
- Rivas, L., Soares, C. M., Baptista, A. M., Simaan, J., Di Paolo,
R. E., Murgida, D. H., Hildebrandt, P. (2005) Electric-field induced
redox potential shifts of tetraheme cytochromes c3
immobilised on self-assembled monolayers. Surface enhanced resonance
Raman spectroscopy and simulation studies. Biophys. J.
88:4188-4199.
- Micaelo, N. M., Teixeira, V. H., Baptista, A. M., Soares,
C. M. (2005) Water dependent properties of cutinase in nonaqueous
solvents. A computational study of enantioselectivity.
Biophys. J. 89:999-1008.
- Teixeira, V. H., Cunha, C. A., Machuqueiro, M., Oliveira,
A. S. F., Victor, B. L., Soares, C. M., Baptista, A. M. (2005) On the
use of different dielectric constants for computing individual and
pairwise terms in Poisson-Boltzmann studies of protein ionization
equilibrium. J. Phys. Chem. B, 109:14691-14706.
- Oliveira, A. S. F., Teixeira, V. H., Baptista, A. M., Soares,
C. M. (2005) Reorganization and conformational changes in the
reduction of tetraheme cytochromes. Biophys. J. 89:3919-3930.
- Machuqueiro, M., Baptista, A. M. (2006) Constant-pH molecular
dynamics with ionic strength effects: the protonation-conformation
coupling in decalysine. J. Phys. Chem. B, 110:2927-2933.
- Lopes, S. C. D. N., Soares, C. M., Baptista, A. M., Goormaghtigh,
E., Costa Cabral, B. J., Castanho, M. A. R. B. (2006) Conformational
and orientational guidance of the analgesic dipeptide kyotorphin
induced by lipidic membranes. Putative correlation towards receptor
docking. J. Phys. Chem. B, 110:3385-3394.
- Teixeira, V. H., Baptista, A. M., Soares, C. M. (2006) Pathways
of H2 towards the active site of [NiFe]-hydrogenase.
Biophys. J. 91:2035-2045.
- Micaelo, N. M., Baptista, A. M., Soares, C. M. (2006)
Parameterization of 1-butyl-3-methylimidazolium
hexafluorophosphate/nitrate ionic liquid for the GROMOS force field.
J. Phys. Chem. B, 110:14444-14451.
- Rocha, R., Leal, S. S., Teixeira, V. H., Regalla, M., Huber, H.,
Baptista, A. M., Soares, C. M., Gomes, C. M. (2006) Natural
domain design: enhanced thermal stability of zinc lacking ferredoxin
isoforms shows that a hydrophobic core efficiently replaces the
structural metal site. Biochemistry, 45:10376-10384.
- Machuqueiro, M., Baptista, A. M. (2006) The pH-dependent
conformational states of kyotorphin: a constant-pH molecular dynamics
study. Biophys. J. 92:1836-1845.
- Gaspar, P., Neves, A. R., Shearman, C. A., Gasson, M. J.,
Baptista, A. M., Turner, D. L., Soares, C. M., Santos, H. (2007) The
lactate dehydrogenases encoded by the ldh and ldhB genes
in Lactococcus lactis exhibit distinct regulation and catalytic
properties: comparative modelling to probe the molecular
basis. FEBS J. 274:5924-5936.
- Veríssimo, A. F., Sousa, F. L., Baptista, A. M., Teixeira, M.,
Pereira. M. M. (2007) Thermodynamic redox behavior of the heme centers
of cbb3 heme-copper oxygen reductase from
Bradyrhizobium japonicum? Biochemistry, 46:13245-13253.
- Teixeira, V. H., Soares, C. M., Baptista, A. M. (2008) Proton
pathways in a [NiFe]-hydrogenase: A Theoretical
Study. Proteins, 70:1010-1022.
- Sousa, F. L., Veríssimo, A. F., Baptista, A. M., Soulimane, T.,
Teixeira, M., Pereira, M. M. (2008) Redox properties of Thermus
thermophilus ba3: different electron-proton
coupling in oxygen reductases? Biophys. J. 94:2434-2441.
- Rocco, A. G., Mollica, L., Ricchiuto, P., Baptista, A. M.,
Gianazza, E., Eberini, I. (2008) Characterization of the protein
unfolding process induced by urea and temperature. Biophys. J.
94:2241-2251.
- Eberini, I., Rocco, A. G., Ientile, A. R., Baptista, A. M.,
Gianazza, E., Tomaselli, S., Molinari, H., Ragona, L. (2008)
Conformational and dynamics changes induced by bile acids binding to
chicken liver bile acid binding protein. Proteins,
71:1889-1898.
- Machuqueiro, M., Baptista, A. M. (2008) Acidic range titration of
HEWL using a constant-pH molecular dynamics method. Proteins,
72:289-298.
- Veríssimo, A. F., Sousa, F. L., Baptista, A. M., Teixeira, M.,
Pereira. M. M. (2008) Thermodynamic redox behavior of the heme centers
in A-type heme-copper oxygen reductases: comparison between the two
subfamilies. Biophys. J. 95:4448-4455.
- Machuqueiro, M., Baptista, A. M. (2009) Molecular Dynamics at
Constant pH and Reduction Potential: Application to
Cytochrome c3. J. Am. Chem. Soc.
131:12586-12594.
- Victor, B. L., Baptista, A. M., Soares, C. M. (2009) Dioxygen and
nitric oxide pathways and affinity to the catalytic site of
rubredoxin:oxygen oxidoreductase from Desulfovibrio gigas.
J. Biol. Inorg. Chem. 14:853-862.
- Campos, S. R. R., Baptista, A. M. (2009) Conformational analysis
in a multidimensional energy landscape: study of an arginylglutamate
repeat. J. Phys. Chem. B, 113:15989-16001.
- Oliveira, A. S. F., Baptista, A. M., Soares, C. M. (2010)
Insights into the molecular mechanism of an ABC transporter:
conformational changes in the NBD dimer of MJ0796.
J. Phys. Chem. B, in press.