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Substance Name: Metallothionein
RN: 9038-94-2


  • A low-molecular-weight (approx. 10 kD) protein occurring in the cytoplasm of kidney cortex and liver. It is rich in cysteinyl residues and contains no aromatic amino acids. Metallothionein shows high affinity for bivalent heavy metals.

Molecular Formula

  • Unspecified
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Names and Synonyms

Name of Substance

  • Metallothionein

MeSH Heading

  • Metallothionein


  • Metallothionein

Systematic Name

  • Metallothioneins

Registry Numbers

CAS Registry Number

  • 9038-94-2

System Generated Number

  • 0009038942