Renal cortex guanylate cyclase - Preferential enrichment in glomerular membranes

1.|The localisation and some of the properties of rabbit kidney cortex guanylate cyclase (CTP pyrophosphatase lyase (cyclizing) EC 4.6.1.2) have been studied. Upon fractionation of dissociated renal cortex, guanylate cyclase activity was preferentially enriched in fractions of pure glomeruli, where ... Ausführliche Beschreibung

1. Person: Helwig, J.-J.
Weitere Personen: Bollack, C.; Mandel, P.; Goridis, C.
Quelle: in BBA - Enzymology Vol. 377, No. 2 (1975), p. 463-472
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Format: Online-Artikel
Sprache: English
Veröffentlicht: 1975
Beschreibung: Online-Ressource
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Anmerkung: Copyright: Copyright (c) 2002 Elsevier Science B.V.
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520 |a 1.|The localisation and some of the properties of rabbit kidney cortex guanylate cyclase (CTP pyrophosphatase lyase (cyclizing) EC 4.6.1.2) have been studied. Upon fractionation of dissociated renal cortex, guanylate cyclase activity was preferentially enriched in fractions of pure glomeruli, where its specific activity was 44.5 times that measured in tubuluar fragments. Most, if not all, of the glomerular activity was found to be firmly membrane-bound, where as the guanylate cyclase activity of the tubules was mainly soluble. Therefore, particulate guanylate cyclase activity could serve as marker enzyme for kidne glomeruli.2.|All hormones or hormone-like agents tested were without effect on kidney guanylate cyclase activity. Triton X-100 stimulated both glomerular and tubular activity.3.|Considering the high cyclic GMP forming capacity of kidney glomeruli, part of the cyclic GMP found in urine might be synthetized locally in these structures. 
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700 1 |a Mandel, P. 
700 1 |a Goridis, C. 
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