Small ligand–globin interactions: reviewing lessons derived from computer simulation

L Capece, L Boechi, LL Perissinotti… - … et Biophysica Acta (BBA …, 2013 - Elsevier
In this work we review the application of classical and quantum-mechanical atomistic
computer simulation tools to the investigation of small ligand interaction with globins. In the …

The diversity of 2/2 (truncated) globins

A Pesce, M Bolognesi, M Nardini - Advances in microbial physiology, 2013 - Elsevier
Small size globins that have been defined as 'truncated haemoglobins' or as '2/2
haemoglobins' have increasingly been discovered in microorganisms since the early 1990s …

Sulfide binding properties of truncated hemoglobins

FP Nicoletti, A Comandini, A Bonamore, L Boechi… - Biochemistry, 2010 - ACS Publications
The truncated hemoglobins from Bacillus subtilis (Bs-trHb) and Thermobifida fusca (Tf-trHb)
have been shown to form high-affinity complexes with hydrogen sulfide in their ferric state …

Exploring the molecular basis of human manganese superoxide dismutase inactivation mediated by tyrosine 34 nitration

DM Moreno, MA Martí, PM De Biase, DA Estrin… - Archives of biochemistry …, 2011 - Elsevier
Manganese Superoxide Dismutase (MnSOD) is an essential mitochondrial antioxidant
enzyme that protects organisms against oxidative damage, dismutating superoxide radical …

Access and Binding of H2S to Hemeproteins: The Case of HbI of Lucina pectinata

FM Boubeta, SE Bari, DA Estrin… - The Journal of Physical …, 2016 - ACS Publications
Hydrogen sulfide (H2S) was recently discovered as a gasotransmitter, capable of
coordinating to the heme iron of hemeproteins. H2S is unique for its ability to render varying …

Protein dynamics and ligand migration interplay as studied by computer simulation

P Arroyo-Mañez, DE Bikiel, L Boechi, L Capece… - … et Biophysica Acta (BBA …, 2011 - Elsevier
Since proteins are dynamic systems in living organisms, the employment of methodologies
contemplating this crucial characteristic results fundamental to allow revealing several …

Structural flexibility of the heme cavity in the cold‐adapted truncated hemoglobin from the Antarctic marine bacterium Pseudoalteromonas haloplanktis TAC125

D Giordano, A Pesce, L Boechi… - The FEBS …, 2015 - Wiley Online Library
Truncated hemoglobins build one of the three branches of the globin protein superfamily.
They display a characteristic two‐on‐two α‐helical sandwich fold and are clustered into …

CO rebinding kinetics and molecular dynamics simulations highlight dynamic regulation of internal cavities in human cytoglobin

M Gabba, S Abbruzzetti, F Spyrakis, F Forti, S Bruno… - PLoS …, 2013 - journals.plos.org
Cytoglobin (Cygb) was recently discovered in the human genome and localized in different
tissues. It was suggested to play tissue-specific protective roles, spanning from scavenging …

Comparing and combining implicit ligand sampling with multiple steered molecular dynamics to study ligand migration processes in heme proteins

F Forti, L Boechi, DA Estrin… - Journal of computational …, 2011 - Wiley Online Library
The ubiquitous heme proteins perform a wide variety of tasks that rely on the subtle
regulation of their affinity for small ligands like O2, CO, and NO. Ligand affinity is …

Hydrophobic Effect Drives Oxygen Uptake in Myoglobin via Histidine E7 [S]

L Boechi, M Arrar, MA Martí, JS Olson… - Journal of Biological …, 2013 - ASBMB
Since the elucidation of the myoglobin (Mb) structure, a histidine residue on the E helix (His-
E7) has been proposed to act as a gate with an open or closed conformation controlling …