Literature DB >> 7470059

Mechanism of bile-pigment synthesis in algae. 18O incorporation into phycocyanobilin in the unicellular rhodophyte, Cyanidium caldarium.

S B Brown, A J Holroyd, R F Troxler.   

Abstract

The origin of the lactam oxygen atoms of phycocyanobilin from Cyanidium caldarium was studied using 18O labelling. By inhibiting photosynthesis, a high 18O enrichment was maintained in the gas phase and the resulting incorporation of label showed that the lactam oxygen atoms were derived from two oxygen molecules. Slow exchange of these oxygen atoms with water was demonstrated directly by using H218O.

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Year:  1980        PMID： 7470059      PMCID： PMC1162110          DOI： 10.1042/bj1900445

Source DB:  PubMed          Journal:  Biochem J        ISSN： 0264-6021            Impact factor:   3.857


  9 in total

Review 1.  The enzymatic formation of bilirubin.

Authors:  R Schmid; A F McDonagh
Journal:  Ann N Y Acad Sci       Date:  1975-04-15       Impact factor: 5.691

2.  Enzymatic degradation of heme. Oxygenative cleavage requiring cytochrome P-450.

Authors:  R Tenhunen; H Marver; N R Pimstone; W F Trager; D Y Cooper; R Schmid
Journal:  Biochemistry       Date:  1972-04-25       Impact factor: 3.162

3.  The enzymatic conversion of heme to bilirubin by microsomal heme oxygenase.

Authors:  R Tenhunen; H S Marver; R Schmid
Journal:  Proc Natl Acad Sci U S A       Date:  1968-10       Impact factor: 11.205

4.  Synthesis of bile pigments in plants. Formation of carbon monoxide and phycocyanobilin in wild-type and mutant strains of the alga, Cyanidium caldarium.

Authors:  R F Troxler
Journal:  Biochemistry       Date:  1972-11-07       Impact factor: 3.162

5.  The mechanism of haem catabolism. A study of haem breakdown in spleen microsomal fraction and in a model system by 18O labelling and metal substitution.

Authors:  R F King; S B Brown
Journal:  Biochem J       Date:  1978-07-15       Impact factor: 3.857

6.  The mechanism of coupled oxidation of octaethylhaem to octaethylbiliverdin [proceedings].

Authors:  B D Chaney; S B Brown
Journal:  Biochem Soc Trans       Date:  1978       Impact factor: 5.407

7.  Bile pigment synthesis in plants. Mechanism of 18O incorporation into phycocyanobilin in the unicellular rhodophyte. Cyanidium caldarium.

Authors:  R F Troxler; A S Brown; S B Brown
Journal:  J Biol Chem       Date:  1979-05-10       Impact factor: 5.157

8.  Phycocyanobilin synthesis in the unicellular rhodophyte Cyanidium caldarium.

Authors:  R F Troxler; P Kelly; S B Brown
Journal:  Biochem J       Date:  1978-06-15       Impact factor: 3.857

9.  The mechanism of haem catabolism. Bilirubin formation in living rats by [18O]oxygen labelling.

Authors:  S B Brown; R F King
Journal:  Biochem J       Date:  1978-02-15       Impact factor: 3.857
  9 in total
  9 in total

1.  Incorporation of haem into phycocyanobilin in levulinic acid treated Cyanidium caldarium.

Authors:  A Schuster; H P Köst; W Rüdiger; J A Holroyd; S B Brown
Journal:  Plant Cell Rep       Date:  1983-04       Impact factor: 4.570

2.  Biosynthesis of the chromophore of phycobiliproteins. A study of mesohaem and mesobiliverdin as possible intermediates and further evidence for an algal haem oxygenase.

Authors:  S B Brown; J A Holroyd
Journal:  Biochem J       Date:  1984-01-01       Impact factor: 3.857

3.  Ferrochelatase activity in the photosynthetic alga Cyanidium caldarium. Development of the enzyme during biosynthesis of photosynthetic pigments.

Authors:  S B Brown; J A Holroyd; D I Vernon; O T Jones
Journal:  Biochem J       Date:  1984-06-15       Impact factor: 3.857

4.  Bile pigment synthesis in plants. Incorporation of haem into phycocyanobilin and phycobiliproteins in Cyanidium caldarium.

Authors:  S B Brown; J A Holroyd; R F Troxler; G D Offner
Journal:  Biochem J       Date:  1981-01-15       Impact factor: 3.857

5.  The biosynthesis of the chromophore of phycocyanin. Pathway of reduction of biliverdin to phycocyanobilin.

Authors:  S B Brown; J A Holroyd; D I Vernon; Y K Shim; K M Smith
Journal:  Biochem J       Date:  1989-07-01       Impact factor: 3.857

6.  N-Methyl Mesoporphyrin IX Inhibits Phycocyanin, but Not Chlorophyll Synthesis in Cyanidium caldarium.

Authors:  S I Beale; N C Chen
Journal:  Plant Physiol       Date:  1983-02       Impact factor: 8.340

7.  Phenylhydrazine-mediated induction of haem oxygenase activity in rat liver and kidney and development of hyperbilirubinaemia. Inhibition by zinc-protoporphyrin.

Authors:  M D Maines; J C Veltman
Journal:  Biochem J       Date:  1984-01-15       Impact factor: 3.857

8.  The effect of N-methylprotoporphyrin IX on the synthesis of photosynthetic pigments in Cyanidium caldarium. Further evidence for the role of haem in the biosynthesis of plant billins.

Authors:  S B Brown; J A Holroyd; D I Vernon; R F Troxler; K M Smith
Journal:  Biochem J       Date:  1982-11-15       Impact factor: 3.857

9.  A study of the mechanism of quercetin oxygenation by 18O labelling. A comparison of the mechanism with that of haem degradation.

Authors:  S B Brown; V Rajananda; J A Holroyd; E G Evans
Journal:  Biochem J       Date:  1982-07-01       Impact factor: 3.857
  9 in total

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