Metal Peptide Binding
Metal Peptide Binding - Related Videos
14:44
Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
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Cited by 4 •
2013
The NMR-solution structure of a metallochaperone model peptide with Cu (I) was determined, and a detailed protocol from sample preparation and 1D and 2D data collection to a three-dimensional structure is described.
14:28
Peptide-based Identification of Functional Motifs and their Binding Partners
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Cited by 2 •
2013
Techniques to dissect the mechanisms underlying the secretion of HIV-1 Nef in exosomes are described. Specific short peptides derived from Nef and protein transfection were exploited to determine the structure, function, and binding partners of Nef’s Secretion Modification Region. These procedures have general relevance in many mechanistic studies.
07:59
A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes
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Cited by 21 •
2014
Biochemical assays with recombinant human MHC II molecules can provide rapid, quantitative insights into immunogenic epitope identification, deletion, or design. Here, a peptide-MHC II binding assay scaled to 384-well plates is described. This cost effective format should prove useful in the fields of protein deimmunization and vaccine design and development.
09:34
Identification of Modified Histones as Binding Substrates of Human Spindlin Family Member 4 (SPIN4) by Peptide Arrays and Native Nucleosome Pulldown
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2026
Genetic variants in human Spindlin Family Member 4 (SPIN4) have recently been identified in patients with bone overgrowth, a novel developmental disorder. A protocol and new results describing the biochemical identification of modified histones in the context of nucleosomes as SPIN4 binding substrates are presented.
11:38
Quantifying the Binding Interactions Between Cu(II) and Peptide Residues in the Presence and Absence of Chromophores
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Cited by 2 •
2022
This article focuses on the use of electronic absorption spectroscopy and isothermal titration calorimetry to probe and quantify the thermodynamics of Cu(II) binding to peptides and proteins.
FAQs
Metal identity, ligand arrangement, and pH are the principal variables identified for this interaction. Changing the metal can alter how electron-donating atoms are coordinated, while the arrangement of ligands affects the resulting geometry. Because these factors also influence peptide structure and stability, comparing conditions systematically helps explain differences in biological activity.
Electron-donating atoms in both the peptide backbone and its side chains can participate in coordination, including nitrogen, oxygen, and sulfur. Their locations determine the available ligand arrangement around the ion, which can influence coordination geometry. This structural relationship helps connect a metal-binding event with changes in peptide conformation, stability, or activity.
Coordination geometry describes how ligands are arranged around a metal ion, and it is shaped by the metal identity and the positions of participating peptide atoms. This arrangement provides a structural basis for interpreting how binding affects a peptide. In biochemistry, such analysis helps relate metal association to functional changes rather than treating binding as an isolated event.
A useful characterization strategy should consider the metal identity, the peptide ligand arrangement, and the pH under which binding is examined. These conditions can be evaluated alongside changes in peptide structure, stability, and biological activity. Organizing observations around these variables helps distinguish which aspects of the interaction may be relevant to a particular biochemical function.
These interactions provide a framework for studying metalloprotein assembly, catalytic activity, metal transport, and metal-responsive regulation. In each case, the association of a metal with peptide ligands can be considered together with resulting effects on structure, stability, or activity. This makes the topic relevant to both molecular mechanisms and broader cellular chemistry.
Characterizing these interactions supports the design of biosensors, therapeutic peptides, and model systems. The same principles used to examine affinity, ligand arrangement, coordination geometry, and pH can guide interpretation of how a peptide responds to a metal ion. Such studies also provide controlled ways to investigate metal-dependent effects on peptide structure and activity.