A very large, naturally occurring polyamide formed from a selection of the 20 or so naturally occurring amino acids.

Proteins sometimes contain non-amino acid components such as metal ions or porphyrin rings embedded within.

Each polypeptide chains has a characteristic sequence of amino acids linked by peptide bonds. The molar mass is usually above 100,000.

Tertiary Structure

The three-dimensional conformation of a protein in its native folded state.

Translational Control

The regulation of the rate of a protein's synthesis by regulation of the rate of translocation of the ribosome.


Proteins that span a membrane and transport specific molecules across the membrane.

See also: Antibody, Conjugated Protein, Haemeprotein, Messenger RNA, Metalloprotein, Plasma Proteins, Protein Kinases, Protein Targetting, Ribonucleic Acid, Ribosome, Simple Protein, Toxins.

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Subjects: Chemistry Medical

ProteomicsDB A joint effort of the Technische Universität München (TUM) and SAP AG. It is dedicated to expedite the identification of the human proteome and its use across the scientific community.
Human Proteome Map An interactive resource to the scientific community by integrating the massive peptide sequencing result from the draft map of the human proteome project.