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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preprotein — A secretory protein with a signal peptide region attached. * * * pre·pro·tein (pre proґtēn) a protein precursor that contains a signal sequence that must be cleaved off to form the protein or proprotein … Medical dictionary
Protein targeting — This article deals with protein targeting in eukaryotes except where noted. Protein targeting or protein sorting is the mechanism by which a cell transports proteins to the appropriate positions in the cell or outside of it. Sorting targets can… … Wikipedia
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TOMM40 — Translocase of outer mitochondrial membrane 40 homolog (yeast), also known as TOMM40, is a human gene.cite web | title = Entrez Gene: TOMM40 translocase of outer mitochondrial membrane 40 homolog (yeast)| url =… … Wikipedia
Transmembrane protein — A transmembrane protein is a protein that spans the entire biological membrane. Transmembrane proteins aggregate and precipitate in water. They require detergents or nonpolar solvents for extraction, although some of them (beta barrels) can be… … Wikipedia
Transporter Classification database — (or TCDB) is an IUBMB approved classification system for membrane transport proteins including ion channels. This classification system was designed to be analogous to the EC number system for classifying enzymes, but it also uses phylogenetic… … Wikipedia
Beta-2 microglobulin — β2 microglobulin also known as B2M is a component of MHC class I molecules, which are present on almost all cells of the body (red blood cells are a notable exception).cite web | title = Entrez Gene: Beta 2 microglobulin| url =… … Wikipedia
Bone sialoprotein — protein Name=Integrin binding bone sialoprotein (ibsp, bone sialoprotein, bsp, bspII, spII) caption= width= HGNCid=5341 Symbol=IBSP AltSymbols= EntrezGene=3381 OMIM=147563 RefSeq=NP 004958.1 UniProt=P21815 PDB= ECnumber= Chromosome=4 Arm=q… … Wikipedia
