Results 101 to 110 of about 399 (144)
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Separation and properties of conjugated biliverdin
Biochimica et Biophysica Acta (BBA) - General Subjects, 1965Abstract 1. 1. Reversed-phase partition chromatography and paper chromatography have been used to separate free biliverdin from conjugated biliverdin. 2. 2. The colour of green post-mortem bile appears to be associated with both biliverdin monoglucuronide and biliverdin diglucuronide. 3. 3.
B A, NOIR, E R, GARAY, M, ROYER
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THE SINGLET OXYGEN REACTIVITY OF BILIVERDIN
Photochemistry and Photobiology, 1977Abstract— In 1, 1, 2‐trichlorotrifluoroethane solution biliverdin physically quenches singlet oxygen at a rate of 8 × l0sM‐1s‐1 and reacts chemically at 6 × 10 5M‐1s‐1 to give a red product. In D, O solution the rate constants are PD dependent and range from 1.5–6 times 1010M‐1s‐1 for quenching and the chemical rate varies from 3–5 × 108 M‐1 s‐1 to ...
I B, Matheson, M M, Toledo
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THE TRIPLET EXCITED STATES OF BILIVERDIN AND BILIVERDIN DIMETHYL ESTER
Photochemistry and Photobiology, 1979Abstract— The triplet states of biliverdin and biliverdin dimethyl ester have been generated using pulse radiolysis excitation. Biliverdin triplet was formed by energy transfer from biphenyl triplet in acetone, absorbed throughout the wavelength range studied (380–1000 nm) and had a half‐life of 11.7μs under the cpnditions chosen.
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The specificity of biliverdin reductase. A study with different biliverdin types.
Biochimica et biophysica acta, 1985The specificity of rat liver biliverdin reductase was examined with the help of a series of synthetic biliverdins. The mixture of the four biliverdin isomers obtained by the chemical oxidation of protohemin I, protohemin XI, protohemin XIV and harderohemin were used as substrates of biliverdin reductase and were compared with the mixture of biliverdins
M L, Tomaro +6 more
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The specificity of biliverdin reductase. The reduction of biliverdin XIII isomers.
Biochimica et biophysica acta, 1984The substrate specificity of the different molecular forms of biliverdin reductase (bilirubin:NAD(P)+ oxidoreductase, EC 1.3.1.24) using biliverdin XIII alpha, XIII beta and XIII gamma was examined. It was found that molecular form 1 (the major form in normal rat liver) reduced biliverdin XIII alpha at a much higher rate than the other two isomers ...
J, Awruch +3 more
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Cyclization of biliverdins to verdohaemochromes
Journal of the Chemical Society, Perkin Transactions 1, 1986Iron(II) octaethylverdohaemochrome was obtained both by cyclization of octaethylbiliverdin in the presence of FeSO4 and pyridine, and by coupled oxidation of octaethylhaemin and ascorbic acid with O2 in the presence of pyridine. The compound obtained by cyclization of biliverdin IXα dimethyl ester was, however, different from that obtained by the ...
Setsuo Saito, Harvey A. Itano
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Detection of Biliverdin Reductase Activity
Current Protocols in Toxicology, 1999AbstractThe conversion of biliverdin to the bile pigment bilirubin is catalyzed by biliverdin reductase, a cytosolic enzyme with two pH optima with different cofactors. The enzyme is assayed at pH 8.7 with NADPH as a cofactor and at 6.75 with NADH. The production of bilirubin is detected as described in this unit with a spectrophotometric assay.
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Biochemical and Biophysical Research Communications, 2002
Multidrug resistance protein 2 (Mrp2) is considered the major mammalian membrane transporter of non-bile salt organic anions from liver to bile. Using Mrp2-deficient rats, we show that the protein is not essential for biliary excretion of biliverdin, its IIIalpha and XIIIalpha isomers, mesobiliverdin XIIIalpha or biliverdins bearing bulky lipophilic ...
Antony F, McDonagh +3 more
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Multidrug resistance protein 2 (Mrp2) is considered the major mammalian membrane transporter of non-bile salt organic anions from liver to bile. Using Mrp2-deficient rats, we show that the protein is not essential for biliary excretion of biliverdin, its IIIalpha and XIIIalpha isomers, mesobiliverdin XIIIalpha or biliverdins bearing bulky lipophilic ...
Antony F, McDonagh +3 more
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The enzymatic and chemical reduction of extended biliverdins
Biochemical and Biophysical Research Communications, 1990The substrate specificity of rat liver biliverdin reductase was probed using helical and extended biliverdins. The former were the ZZZ-all-syn biliverdins IX alpha and IX gamma, and the latter were the 5Z-syn, 10Z-syn, 15Z-anti; 5Z-anti, 10E-anti, 15E-anti biliverdins.
R B, Frydman +3 more
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Biochimica et Biophysica Acta (BBA) - General Subjects, 1976
James A. Barrowman +2 more
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James A. Barrowman +2 more
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