"Tetrapyrroles" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
Four PYRROLES joined by one-carbon units linking position 2 of one to position 5 of the next. The conjugated bond system results in PIGMENTATION.
Below are MeSH descriptors whose meaning is more general than "Tetrapyrroles".
Below are MeSH descriptors whose meaning is more specific than "Tetrapyrroles".
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