Metalloproteins
Metalloproteins - Related Videos
09:51
Standards for Quantitative Metalloproteomic Analysis Using Size Exclusion ICP-MS
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Cited by 34 •
2016
Size exclusion chromatography hyphenated with inductively coupled plasma - mass spectrometry (ICP-MS) is a powerful tool to measure changes in the abundance of metalloproteins directly from biological samples. Here we describe a set of metalloprotein standards used to estimate molecular mass and the amount of metal associated with unknown proteins.
11:46
Synthesis of an Oxygen-Carrying Cobalt(II) Complex
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2023
Source: Deepika Das, Tamara M. Powers, Department of Chemistry, Texas A&M University Bioinorganic chemistry is the field of study that investigates the role that metals play in biology. Approximately half of all proteins contain metals and it is estimated that up to one third of all proteins rely on metal-containing active sites to function. Proteins that feature metals, called metalloproteins, play a vital role in a variety of cell functions that are necessary for life. Metalloproteins...
03:08
Tartrate-Resistant Acid Phosphatase Staining: An In Vitro Technique to Detect TRAP Enzyme-Containing Cultured Osteoclasts
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2025
This video demonstrates the tartrate-resistant acid phosphatase staining technique to detect the presence of TRAP-containing granules inside osteoclasts. The technique forms magenta-colored dye granule deposits in the cytoplasm of osteoclasts, rendering them visible under an inverted microscope.
10:25
Monitoring Protein-Ligand Interactions in Human Cells by Real-Time Quantitative In-Cell NMR using a High Cell Density Bioreactor
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Cited by 16 •
2021
This protocol describes the setup of an NMR bioreactor to keep encapsulated human cells viable for up to 72 h, followed by time-resolved in-cell NMR data acquisition and analysis. The methodology is applied to monitor intracellular protein-ligand interactions in real time.
09:30
Detection of Functional Matrix Metalloproteinases by Zymography
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Cited by 126 •
2010
This protocol describes an activity-based assay for detecting matrix metalloproteinases in culture supernatants or body fluids.
FAQs
Amino acid side chains and other ligands hold the metal in a defined coordination environment, rather than allowing it to interact randomly. That arrangement links the protein’s structure to the metal’s chemical behavior, helping the complex stabilize the protein, transfer electrons, bind oxygen, or activate molecules during catalysis.
Metal-containing cofactors add chemical capabilities that the protein framework alone does not provide. Their presence can make electron transfer, oxygen binding, or molecular activation possible while the surrounding protein positions and retains the cofactor. This division of roles explains why metalloprotein function depends on both the metal-containing component and its biological protein environment.
The metal’s role can be understood through the function it enables: structural stabilization, electron transfer, oxygen binding, or molecular activation during catalysis. These roles connect molecular chemistry with biological work, allowing metalloproteins to participate in respiration, photosynthesis, oxygen transport, and metabolic regulation across diverse living systems.
A biology-focused investigation can connect three levels: the metal’s coordination environment, the protein function it enables, and the larger process in which that function operates. This framework helps explain enzyme mechanisms and relates molecular changes in metal binding to disease-related pathways without treating the metal as an isolated component.
Changes in metal binding can alter the relationship between a protein’s structure and its chemical role. Studying those changes helps researchers interpret how metalloprotein behavior may influence disease-related pathways. The value lies in connecting a molecular-level alteration with a broader biological consequence, rather than examining binding as an isolated measurement.
Knowledge of metalloprotein chemistry supports the design of biomimetic catalysts, biosensors, and therapeutic strategies. Biomimetic catalysts seek to reproduce useful chemical behavior, whereas biosensors and therapeutic approaches apply that understanding to detection or intervention. These applications show how mechanistic biology can guide designs beyond the original natural protein system.