Stercobilin
... human feces is derived from stercobilin, a tetrapyrrole chemical compound created by bacterial action on ... http://www.chem.qmul.ac.uk/iupac/tetrapyrrole/TP/D6.html
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Nickel
... active site of these enzymes. A nickel-tetrapyrrole coenzyme, Co-F430, is present in the ... CoM reductase and in methanogenic bacteria. The tetrapyrrole is intermediate in structure between porphyrin and ...
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Alfred Treibs   (translated from German)
... of the proof of certain organic compounds ( Tetrapyrrole ; these chemical compounds are modified structure-similar ...
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Phytochrome   (translated from French)
... This last corresponds in fact to a tetrapyrrole compound to open chain. The phytochrome is ...
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Biliverdin
... of four linearly connected pyrrole rings (a tetrapyrrole). Biliverdin is formed when the heme group ...
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Resonance Raman spectroscopy
... stretching and bending modes associated with the tetrapyrrole-iron group. Consequently, in a molecule with ...
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Polypyrrole
... connected pyrrole ring structures. For example a tetrapyrrole is a compound with four pyrrole rings ...
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Phytochrome
... www.mobot.org/jwcross/duckweed/phytochrome.htm#tetrapyrrole http://ucce.ucdavis.edu/files/filelibrary/616 ...
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Phycobilin
... an open chain of four pyrrole rings (tetrapyrrole) and are structurally similar to the bile ...
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Leucoplast
... of fatty acids, many amino acids, and tetrapyrrole compounds such as haem. In general, leucoplasts ...
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