Showing papers by "Istvan Jona published in 1991"

TL;DR: Light-induced Ca2+ release from theCa2+ complex of Nitr-5 altered the FTIR spectra of sarcoplasmic reticulum vesicles and purified Ca(2+)-ATPase preparations, suggesting that changes in side chain vibrations, although some changes in secondary structures may also contribute.

TL;DR: It is suggested that high pressure stabilized the enzyme in an E2-like state characterized by low reactivity with ATP and Ca2+ and high reactions with Pi, which is relatively insensitive to high pressure.

TL;DR: The distribution of the covalently attached ACB in the Ca(2+)-ATPase was tested by tryptic proteolysis after labeling exclusively from the outside (OS), from the inside (IS) or from both sides (BS); intense ACB fluorescence was seen in the A fragment with inhibition of ATPase activity.