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doi: 10.1002/(sici)1097-010x(19970401)277:5 3.0.co;2-k

The former is inducible and is the first and rate-limiting enzyme of the heme degradation pathway, whereas the latter is relatively constitutive

79 YarmolinskyD.BrychkovaG.FluhrR.SagiM

Lyophilized peptides lack the aqueous environment required for rapid hydrolysis, making them far more forgiving during accidental temperature excursions
