Als Präkursor-Protein (lat. praecursor, dt. Vorläufer) wird ein inaktives Protein bezeichnet, welches durch posttranslationale Modifikationen in eine aktive Form überführt werden kann. Die Vorsilben Pro oder Prepro vor dem Namen des Proteins kennzeichnen den Präkursor.
Präkursor-Enzyme werden als Proenzyme oder Zymogene und Präkursor-Hormone als Prohormone bezeichnet.
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pre-pro-protein — A pre protein is a form that contains a signal sequence that specifies its insertion into or through membranes. A pro protein is one that is inactive; the full function is only present when an inhibitory sequence has been removed by proteolysis.… … Dictionary of molecular biology
Protein sequencing — Proteins are found in every cell and are essential to every biological process, protein structure is very complex: determining a protein s structure involves first protein sequencing determining the amino acid sequences of its constituent… … Wikipedia
Protein K (gene expression) — Protein K is a human protein found in the cell nucleus that binds to pre messenger RNA (mRNA) as a component of heterogeneous ribonucleoprotein particles. The simian homolog is known as protein H16 . Both proteins bind to single stranded DNA as… … Wikipedia
Protein splicing — is an intramolecular reaction of a particular protein in which an internal protein segment (called an intein) is removed from a precursor protein with a ligation of C terminal and N terminal external proteins (called exteins) on both sides. The… … Wikipedia
Pre-diabetes — is a relatively new term for a condition of abnormal glucose metabolism wherein the patient has periods of both hyper and hypo glycemia, but without meeting the formal definition of type 2 diabetes mellitus. An individual may show evidence of… … Wikipedia
Pre-conception counseling — (also called pre conceptual counseling) is based on the medical theory that all women of child bearing years should be pre screened for health and risk potentials before attempting to be pregnant. Physicians and baby experts recommend that a… … Wikipedia
pre|cip|i|tin — «prih SIHP uh tihn», noun. an antibody formed in blood serum as a result of inoculating with a foreign protein; coagulin. When the antibody is brought into contact with its soluble antigen, a precipitate forms … Useful english dictionary
Pre-eclampsia — ICD9 = ICD9|642.4 ICD9|642.7 ICDO = Caption = OMIM = OMIM mult = MedlinePlus = 000898 eMedicineSubj = med eMedicineTopic = 1905 | eMedicine mult = eMedicine2|ped|1885 one of the studies investigating the diminished incidence of pre eclampsia… … Wikipedia
Protein — Proteins are large organic compounds made of amino acids arranged in a linear chain and joined together by peptide bonds between the carboxyl and amino groups of adjacent amino acid residues. The sequence of amino acids in a protein is defined by … Wikipedia
Protein domain — Pyruvate kinase, a protein from three domains (PDB 1pkn) A protein domain is a part of protein sequence and structure that can evolve, function, and exist independently of the rest of the protein chain. Each domain forms a compact three… … Wikipedia
