Metalloporphyrins - ț̢
Porphyrins which are combined with a metal ion. The metal is bound equally to all four nitrogen atoms of the pyrrole rings. They possess characteristic absorption spectra which can be utilized for identification or quantitative estimation of porphyrins and porphyrin-bound compounds.
Synonyms :
Metalloproteases - ț̢
Proteases which use a metal, normally ZINC, in the catalytic mechanism. This group of enzymes is inactivated by metal CHELATORS.
Synonyms : Metallopeptidases
Metalloproteins - ț̢
Proteins that have one or more tightly bound metal ions forming part of their structure. (Dorland, 28th ed)