The spectroscopic (EPR and absorbance) properties of the nitric oxide derivative of ferrous man, horse, buffalo, deer, mouflon, musk ox, ox, and reindeer hemoglobin (HbNO) have been investigated in the absence of any allosteric effector at pH 6.5 (in 0.1 M 2-[N-morpholino]ethanesulphonic acid/NaOH chloride-free buffer system), as well as at 100 K and/or 20 degrees C. Man and horse HbNO show spectroscopic properties that are generally taken as typical of the high affinity state of ferrous tetrameric Hb's; on the other hand, the spectroscopic properties of ruminant (i.e., buffalo, deer, mouflon, musk ox, ox, and reindeer) HbNO are characteristic of the low affinity conformation. These results are in keeping with the functional properties of the mammalian Hb's considered and have been related to the peculiar low oxygen affinity of ruminant Hb's.

Ascenzi, P., Coletta, M., Desideri, A., Petruzzelli, R., Polizio, F., Bolognesi, M., et al. (1992). Spectroscopic properties of the nitric oxide derivative of ferrous man, horse, and ruminant hemoglobins: a comparative study. JOURNAL OF INORGANIC BIOCHEMISTRY, 45(1), 31-37.

Spectroscopic properties of the nitric oxide derivative of ferrous man, horse, and ruminant hemoglobins: a comparative study

COLETTA, MASSIMILIANO;DESIDERI, ALESSANDRO;POLIZIO, FRANCESCA;CONDO', SAVERIO GIOVANNI;
1992-01-01

Abstract

The spectroscopic (EPR and absorbance) properties of the nitric oxide derivative of ferrous man, horse, buffalo, deer, mouflon, musk ox, ox, and reindeer hemoglobin (HbNO) have been investigated in the absence of any allosteric effector at pH 6.5 (in 0.1 M 2-[N-morpholino]ethanesulphonic acid/NaOH chloride-free buffer system), as well as at 100 K and/or 20 degrees C. Man and horse HbNO show spectroscopic properties that are generally taken as typical of the high affinity state of ferrous tetrameric Hb's; on the other hand, the spectroscopic properties of ruminant (i.e., buffalo, deer, mouflon, musk ox, ox, and reindeer) HbNO are characteristic of the low affinity conformation. These results are in keeping with the functional properties of the mammalian Hb's considered and have been related to the peculiar low oxygen affinity of ruminant Hb's.
gen-1992
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore BIO/10 - BIOCHIMICA
English
Con Impact Factor ISI
Morpholines; Animals; Models, Molecular; Humans; Hydrogen-Ion Concentration; Horses; Ruminants; Reindeer; Nitric Oxide; Cattle; Hemoglobins; Alkanesulfonates; Electron Spin Resonance Spectroscopy; Buffaloes; Spectrophotometry; Alkanesulfonic Acids; Allosteric Regulation; Deer; Protein Conformation
Ascenzi, P., Coletta, M., Desideri, A., Petruzzelli, R., Polizio, F., Bolognesi, M., et al. (1992). Spectroscopic properties of the nitric oxide derivative of ferrous man, horse, and ruminant hemoglobins: a comparative study. JOURNAL OF INORGANIC BIOCHEMISTRY, 45(1), 31-37.
Ascenzi, P; Coletta, M; Desideri, A; Petruzzelli, R; Polizio, F; Bolognesi, M; Condo', Sg; Giardina, B
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/54783
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