Results 131 to 140 of about 28,267 (166)
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International Journal of Biochemistry, 1994
1. The role of histidine on the decarboxylation of porphyrinogens of 7-, 6-, and 5-COOH III brought about by porphyrinogen carboxy-lyase (PCL) was studied. 2. For this purpose hepatic PCL from normal and hexachlorobenzene (HCB) treated rats were modified with diethylpyrocarbonate. 3.
S C, Billi de Catabbi +1 more
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1. The role of histidine on the decarboxylation of porphyrinogens of 7-, 6-, and 5-COOH III brought about by porphyrinogen carboxy-lyase (PCL) was studied. 2. For this purpose hepatic PCL from normal and hexachlorobenzene (HCB) treated rats were modified with diethylpyrocarbonate. 3.
S C, Billi de Catabbi +1 more
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Archives of Biochemistry and Biophysics, 1972
Abstract Partially purified sonic extract of Ampullariella digitata strain 399 converted UDPGlcUA or UDPGalUA to a mixture of UDPGalUA, UDPGlcUA, UDPXyl and UDPAra. However, the extract did not catalyze the reaction: UDPXyl ⇄ UDPAra. In the presence of unlabeled UDPXyl, UDP-[ 14 C]GlcUA yielded only UDP-[ 14 C]Xyl, and UDP-[ 14 C]GalUA yielded only
D F, Fan, D S, Feingold
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Abstract Partially purified sonic extract of Ampullariella digitata strain 399 converted UDPGlcUA or UDPGalUA to a mixture of UDPGalUA, UDPGlcUA, UDPXyl and UDPAra. However, the extract did not catalyze the reaction: UDPXyl ⇄ UDPAra. In the presence of unlabeled UDPXyl, UDP-[ 14 C]GlcUA yielded only UDP-[ 14 C]Xyl, and UDP-[ 14 C]GalUA yielded only
D F, Fan, D S, Feingold
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Tetrapyrroles as substrates and inhibitors of porphyrinogen carboxy - lyase from rat liver.
Acta physiologica latino americana, 1978Porphyrinogen carboxy-lyase is an enzyme of the haem pathway which catalyses the stepwise decarboxylation of porphyrinogens with different number of carboxyl groups. This enzyme has a low substrate specificity since at least eighteen porphyrinogens were proved to be decarboxylated by the enzyme.
L C, San Martín de Viale +2 more
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Research communications in chemical pathology and pharmacology, 1986
In order to examine inhibitory effects of hexachlorobenzene metabolites on the hepatic porphyrinogen carboxylyase activity, rat liver cytosol was incubated with uroporphyrinogen III and chlorinated phenols, thiophenols, thioanisoles and benzenes. Then, the occurrence of hepta-, hexa-, penta- and tetracarboxyporphyrinogen = coproporphyrinogen (measured ...
S C, Billi +2 more
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In order to examine inhibitory effects of hexachlorobenzene metabolites on the hepatic porphyrinogen carboxylyase activity, rat liver cytosol was incubated with uroporphyrinogen III and chlorinated phenols, thiophenols, thioanisoles and benzenes. Then, the occurrence of hepta-, hexa-, penta- and tetracarboxyporphyrinogen = coproporphyrinogen (measured ...
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IARC scientific publications, 1987
This study aimed to determine whether drug treatment produced structural changes in porphyrinogen carboxy-lyase enzymatic protein, leading to altered properties. Rat-liver enzyme was obtained from normal animals and from those with hexachlorobenzene (HCB)-induced porphyria, and several of its properties were comparatively studied. The enzymes from both
M del C, Ríos de Molina +2 more
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This study aimed to determine whether drug treatment produced structural changes in porphyrinogen carboxy-lyase enzymatic protein, leading to altered properties. Rat-liver enzyme was obtained from normal animals and from those with hexachlorobenzene (HCB)-induced porphyria, and several of its properties were comparatively studied. The enzymes from both
M del C, Ríos de Molina +2 more
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IARC scientific publications, 1987
This study aimed to confirm the presence of an inhibitor in the hexachlorobenzene-porphyric liver that is able to decrease the normal activity of porphyrinogen carboxy-lyase (PCL), to determine whether any relation exists between the degree of hexachlorobenzene-induced porphyria and the ability of a porphyric liver preparation to reduce the enzyme ...
S C, Billi +2 more
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This study aimed to confirm the presence of an inhibitor in the hexachlorobenzene-porphyric liver that is able to decrease the normal activity of porphyrinogen carboxy-lyase (PCL), to determine whether any relation exists between the degree of hexachlorobenzene-induced porphyria and the ability of a porphyric liver preparation to reduce the enzyme ...
S C, Billi +2 more
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Effects of hydroxamic acids on L-histidine carboxy-lyase
Biochemical Pharmacology, 1970G R, Gale, A B, Smith, L M, Atkins
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L-Tyrosine carboxy-lyase of barley roots
Plant and Cell Physiology, 1970KAZUO HOSOI +2 more
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Oxaloacetate 4-carboxy-lyase from Pseudomanas ovalis Chester
Biochimica et Biophysica Acta (BBA) - Specialized Section on Enzymological Subjects, 1964A A, HORTON, H L, KORNBERG
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Crystalline l-aspartate 4-carboxy-lyase
Biochimica et Biophysica Acta (BBA) - Specialized Section on Enzymological Subjects, 1963openaire +2 more sources