For a technical overview of the features of the Windows Media codecs, see About the Windows Media Codecs. The term codec is an amalgamation of the terms compressor and decompressor. A codec is usually implemented as a pair of COM objects: one for encoding content, and another for decoding content.
An allosteric effector can also act. negatively, inhibiting enzyme activity. Because allosteric regulators do not. bind to the same site on the protein. as the substrate, changing substrate. concentration generally does not. alter their effects. Of course there are other types of. regulation as well. Active site inhibitors: An inhibitory factor may bind to and block the active site. If this binding is reversible, then increasing the amount of substrate can over-come. the inhibition. An inhibitor of this type is known as a competitive inhibitor.
Examples of effectors are as follows: (1) allosteric effectors, (2) bacterial effectors, and (3) fungal effectors (e.g. apoplastic effectors and cytoplasmic effectors). In other biological contexts, the term effector is used to describe an organ, a gland, or a muscle that responds to a nerve impulse.upplement. In biochemistry, an effector is that molecule that binds to a specific protein, and regulates the latter's biological activity. An effector molecule acts as a ligand that is capable of increasing or decreasing the activity of that protein.