Calcium-dependent regulation of NAD kinase

Anderson, J.M.; Cormier, M.J.

Biochemical and Biophysical Research Communications 84(3): 595-602


ISSN/ISBN: 0006-291X
PMID: 214081
DOI: 10.1016/0006-291x(78)90747-7
Accession: 068524323

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An activator protein of NAD kinase from the pea, Pisum sativum L., was Ca2+-dependent. This plant activator protein also stimulates the activity of modulator protein dependent-cyclic nucleotide phosphodiesterase from porcine brain. This stimulation is similar to that observed with modulator protein isolated from animal sources. Ca2+-dependent modulator proteins isolated from porcine brain, bovine brain and the coelenterate, Renilla, will regulate the NAD kinase activity of peas. Other common properties of the plant activator protein and animal modulator proteins are their acidic nature, heat stabilities, similar Stokes' radii and their interactions with troponin I.