Categories: Protein methods | Analytical chemistry | Chemical tests A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... Protein methods are the techniques used to study proteins. ... In the scientific method, an experiment (Latin: ex- periri, of (or from) trying) is a set of observations performed in the context of solving a particular problem or question, to retain or falsify a hypothesis or research concerning phenomena. ... Protein purification is the process of isolating proteins from a homogenate, which may comprise cell and tissue components, including DNA, cell membrane and other proteins. ... It has been suggested that mGFP be merged into this article or section. ... A Western blot. ... Immunostaining is a general term in biochemistry that applies to any use of an antibody-based method to detect a specific protein in a sample. ... Proteins are found in every cell and are essential to every biological process, protein structure is very complex: determining a proteins structure involves first protein sequencing - determining the amino acid sequences of its constituent peptides; and also determining what conformation it adopts and whether it is complexed with any... Gel electrophoresis is a technique used for the separation of deoxyribonucleic acid, ribonucleic acid, or protein molecules through an electric charge. ... Schematic representation of a protein electrophoresis gel In chemistry and medicine, protein electrophoresis is a method of analysing a mixture of proteins by means of gel electrophoresis, mainly in blood serum (blood plasma is not suitable). ... Immunoprecipitation is the technique of precipitating an antigen out of solution using an antibody specific to that antigen. ... Peptide mass fingerprinting (also known as protein fingerprinting) (PMF) is an analytical technique for protein identification that was developed by John Yates and colleagues (3). ... Map of the human X chromosome (from the NCBI website). ... Protein structure prediction is one of the most significant technologies pursued by computational structural biology and theoretical chemistry. ... Protein-protein docking is the determination of the molecular structure of complexes formed by two or more proteins without the need for experimental measurement. ... Protein structural alignment is a form of alignment which tries to establish equivalences between two or more protein structures based on their fold. ... Protein ontology or Proteome Ontology is a research tool of proteomics, similar to the scientific classification system used in biology. ... This article is being considered for deletion in accordance with Wikipedias deletion policy. ... An assay is a procedure where the concentration of a component part of a mixture is determined. ... Enzyme assays are laboratory methods for measuring enzymatic activity. ... The Bradford Protein Assay is a spectroscopic analytical procedure used to measure the concentration of protein in a solution. ... Secretion assay is a process used in cell biology to identify cells that are secreting a particular protein (usually a cytokine). ...