Nitric oxide (NO) is an important signaling molecule that is involved in a wide range of
physiological and pathological events in biology. Metal coordination chemistry, especially …

Haemoglobin (Hb) is widely known as the iron-containing protein in blood that is essential
for O 2 transport in mammals. Less widely recognised is that erythrocyte Hb belongs to a …

Nitrite is one of the players in the broad nitrogen biogeochemical cycle. This nitrogen oxo-
anion is involved in key pathways crucial to life on Earth and to the planetary “recycling” of …

Understanding the dynamics of redox elements in biologic systems remains a major
challenge for redox signaling and oxidative stress research. Central redox elements include …

Neuroglobin is a highly conserved hemoprotein of uncertain physiological function that
evolved from a common ancestor to hemoglobin and myoglobin. It possesses a six …

Reactive sulfur species (RSS) entail a diverse family of sulfur derivatives that have emerged
as important effector molecules in H 2 S-mediated biological events. RSS (including H 2 S) …

Neuroglobin and cytoglobin are two recent additions to the family of heme-containing
respiratory proteins of man and other vertebrates. Here, we review the present state of …

Cellular response to reactive oxygen species (ROS) includes both reversible redox
signaling and irreversible nonenzymatic reactions which depend on the nature and …

Neuroglobin, recently discovered in the brain and in the retina of vertebrates, belongs to the
class of hexacoordinate globins, in which the distal histidine coordinates the iron center in …

Cytoglobin is a recently discovered vertebrate globin distantly related to myoglobin, and its
function is unknown. Here we present the first detailed analysis of the distribution and …