It is a linear degradation products of the cyclic tetrapyrrole heme.
2.
S 0 ) at visible and NIR wavelengths which is typical of tetrapyrrole macrocycles.
3.
The full-length protein encoded by this gene is an intracellular tetrapyrrole-binding protein.
4.
When the pH drops, luciferase changes its shape, allowing luciferin, more specifically tetrapyrrole, to bind.
5.
Ferrochelatase is the best known member of a family of enzymes that add divalent metal cations to tetrapyrrole structures.
6.
"' Porphyrazines "', or tetraazaporphyrins, are tetrapyrrole macrocycles similar to porphyrins and phthalocyanines.
7.
:Hi again, I noticed that there's no page for Tetrapyrrole, only a redirect to Polypyrrole.
8.
The tetrapyrrole moiety in organic compounds which is not macrocyclic but still has a conjugated pi-bond system still acts as a chromophore.
9.
Heme is a good example : the iron atom is at the centre of a porphyrin macrocycle, being bound to four nitrogen atoms of the tetrapyrrole macrocycle.
10.
The two-pyrrole molecule looks red, the three-pyrrole molecule looks blue and the four-pyrrole molecule looks green ( like chlorophyll, a tetrapyrrole ).
