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<p>CSV import</p> <p><b>New page</b></p><div>[[File:Metallothionein_1aqs.png|thumb|Metallothionein 1aqs]] Metal-binding proteins are a class of [[proteins]] that play a crucial role in binding and transporting [[metal ions]] within living organisms. These proteins are essential for various biological processes, including [[metabolism]], [[cell signaling]], and [[gene regulation]].<br /> == Structure ==<br /> Metal-binding proteins typically contain specific amino acid residues, such as [[histidine]], [[cysteine]], and [[aspartic acid]], that serve as binding sites for metal ions. These residues form coordination complexes with the metal ions, allowing the protein to selectively bind and transport specific metals.<br /> == Function ==<br /> Metal-binding proteins serve diverse functions in biological systems. For example, [[ferritin]] is a metal-binding protein that stores and releases [[iron]] in a controlled manner, preventing iron toxicity. [[Metallothionein]] is another metal-binding protein that plays a role in regulating the levels of essential metals like [[zinc]] and [[copper]].<br /> == Examples ==<br /> One well-known example of a metal-binding protein is [[hemoglobin]], which binds [[iron]] ions and is responsible for transporting oxygen in the blood. Another example is [[cytochrome c]], a protein that contains a [[heme]] group with an iron ion and is involved in [[cellular respiration]].<br /> == Role in Health and Disease ==<br /> Dysregulation of metal-binding proteins can lead to various health conditions. For instance, mutations in metal-binding proteins like [[ceruloplasmin]] can result in disorders such as [[Wilson&#039;s disease]], which is characterized by abnormal copper accumulation in the body.<br /> == Research and Applications ==<br /> Metal-binding proteins have garnered significant interest in research due to their potential applications in various fields, including [[biotechnology]] and [[medicine]]. Understanding the mechanisms of metal binding in proteins can lead to the development of novel therapies for metal-related disorders.<br /> [[Category:Proteins]]<br /> [[Category:Biochemistry]]<br /> {{food-stub}}</div>

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