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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pro-protein — noun Any inactive protein that can be activated by posttranslational modification … Wiktionary
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 precursor — A protein precursor, also called a pro protein or pro peptide, is an inactive protein (or peptide) that can be turned into an active form by posttranslational modification. The name of the precursor for a protein is often prefixed by pro .… … Wikipedia
Pro-hevein — Identifiers Symbol ? CAS number 137295 60 4 UniProt … Wikipedia
protein kinase — n any of a class of allosteric enzymes that possess a catalytic subunit which transfers a phosphate from ATP to one or more amino acid residues (as serine, threonine, or tyrosine) in a protein s side chain resulting in a conformational change… … Medical dictionary
Protein tyrosine phosphatase — Protein tyrosine phosphatases (PTPs) are a group of enzymes that remove phosphate groups from phosphorylated tyrosine residues on proteins. Protein tyrosine (pTyr) phosphorylation is a common post translational modification that can create novel… … Wikipedia
Protein kinase R — (Eukaryotic translation initiation factor 2 alpha kinase 2) is a protein protecting against viral infections. EIF2AK2 is its human gene.cite web | title = Entrez Gene: EIF2AK2 eukaryotic translation initiation factor 2 alpha kinase 2| url =… … Wikipedia
protein-glutamine γ-glutamyltransferase — pro·tein glu·ta·mine γ glu·ta·myl·trans·fer·ase (proґtēn glooґtə mēn gloo″tə məl transґfər ās) [EC 2.3.2.13] an enzyme of the transferase class that creates crosslinks within and between fibrin… … Medical dictionary
protein-tyrosine kinase — pro·tein ty·ro·sine ki·nase (proґtēn tiґro sēn kiґnās) [EC 2.7.10] a group comprising the protein kinases that catalyze the phosphorylation of tyrosine residues in specific proteins. It is subdivided into the receptor protein… … Medical dictionary
pro´tein|like´ — pro|tein «PROH teen, tee ihn», noun, adjective. –n. 1. one of the substances containing nitrogen, carbon, hydrogen, and oxygen, that is a necessary part of the cells of animals and plants. Meat, milk, cheese, eggs, and beans contain protein.… … Useful english dictionary
