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单词	porphyrin
释义	porphyrin /ˈpɔːfɪrɪn / noun Biochemistry Any of a class of pigments (including haem and chlorophyll) whose molecules contain a flat ring of four linked heterocyclic groups, sometimes with a central metal atom.Changes in apoprotein and porphyrin fluorescence suggest two classes of bound porphyrins.... It should also be noted that the doming deformation in the NSD context does not involve the iron, but only the 24 atoms of the porphyrin ring. These observations suggest that the generation of 102 by lipophilic porphyrins occurs within the bilayer, which is also the site of damage. Origin Early 20th century: from Greek porphura 'purple' + -in1.
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