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Peptide sequence or amino acid sequence is the order in which amino acid residues, connected by peptide bonds, lie in the chain. The sequence is generally reported from the N-terminal end containing free amino group to the C-terminal end containing free carboxyl group. Peptide sequence is often called protein sequence if it represent the primary structure of a protein.

Several deductions can be made from the sequence. Long stretches of hydrophobic residues may indicate transmembrane helices. Certain residues indicate a beta sheet area. If full-lenght protein sequence is available, it is possible to estimate the isoelectric point of the protein. Methods for determining the peptide sequence include deduction from DNA sequence, Edman degradation, and mass spectrometry.

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Topics: Peptide Sequence, Protein Biosynthesis, Protein Kinase...

Proteinmyoglobin, showing coloured alpha helices. This protein was the first to have its structure solved by X-ray crystallography by Max Perutz and Sir John Cowdery Kendrew in 1958, which led to them receiving a Nobel Prize in Chemistry. A protein is a complex,	Protein biosynthesisnucleus of the cell light blue , genes (DNA, dark blue are transcribed into RNA. This RNA is then subject to post-transcriptional modification and control, resulting in a mature mRNA red that is then transported out of the nucleus and into the cytoplasm p	Protein kinaseA protein kinase is an enzyme that can transfer a phosphate group from a donor molecule (usually ATP) to an amino acid residue of a protein. The protein kinase mechanism is used in signal transduction for the regulation of enzymes: phosphorylation can act
Protein phosphataseProtein phosphatases are enzymes that remove phosphate groups that have been attached to amino acid residues of proteins by protein kinases. The phosphates are important in signal transduction by regulating the proteins they are attached to. To reverse th	Protein targetingProtein targeting includes the mechanisms by which a biological cell transports proteins to the appropriate organelle for insertion into a membrane or secretion to the outside. This article deals with protein targeting in eukaryotes except as noted. Prote	ProteinoidProteinoids are protein-like molecules formed inorganically from amino acids. Some theories of abiogenesis propose that proteinoids were a precursor to the first living cells. The inorganic polymerization of amino acids into proteins through the formation
Protein folding	Protein Data Bank	Proteinuria
Protein catabolism	Protein engineering	Protein sequencer
Protein (band)	Protein structure prediction	Protein subunit

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