BIOL303 Lecture Notes - Post-Translational Modification, Repressor, Glycoprotein
27 Oct 2013
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Document Summary
Induction: one group of cells influences another group of cells to take on a different fate. Paracrine factor: signal produced by inducer (soluble protein, peptides or glycoprotein). Competence: ability to respond to a specific inductive signal. Signal transduction: a signaling molecule activates a specific receptor protein on cell membrane, then a second messenger transmits signal into the cell. Endocrine signaling: hormones in circulatory system that act along a great distance. Paracrine signaling: localized production of paracrine factors (soluble proteins, peptides or glycoproteins) secreted into extracellular space. Instructive: a signal from the inducing cell is necessary for initiating new gene expression in the responding cell. Permissive: the responding tissue has already been specified and only needs an environment that allows for the expression of these traits (ex. Regional specificity: process by which different areas are identified in the development of the early embryo. The process by which the cells become specified differs between organisms.
