Requirement for a macromolecular factor for sodium azide activation of guanulate cyclase
- PMID: 5467
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Requirement for a macromolecular factor for sodium azide activation of guanulate cyclase
J Cyclic Nucleotide Res.
1975.
Abstract
Sodium azide, a highly nucleophilic agent and a potent metabolic inhibitor, markedly increased guanylate cyclase activity from supernatant fractions of rat liver homogenates. The effect of sodium azide was not observed with partially purified guanulate cyclase from liver or crude soluble guanylate cyclase from cerebral cortex. However, the effect of sodium azide could be restored by the readdition of a fraction isolated from rat liver homogenates. The macromolecular factor required for the sodium azide effect was separated from soluble guanylate cyclase of rat liver with DEAE-cellulose column chromatography, and some of its properties were examined. The factor was nondialyzable and heat labile.
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