| These effectors can assume a vast diversity of chemical forms, ranging from simple inorganic molecules to complex nucleotides such as cyclic adenosine monophosphate. |
| The effectors that modulate the activity of these allosteric enzymes are of two types. |
| Previous studies on axon guidance have provided a wealth of information about guidance factors, their receptors, and cytoplasmic effectors. |
| Pigmentary effectors enable crustaceans to display rapidly reversible integumental color changes and retinal screening pigment movements. |
| These effects are unlikely to be due to low-molecular-weight effectors since similar results were obtained whether or not extracts were desalted prior to assay. |
| There is, however, growing evidence that specific proteases may also act as mediators of signal transduction or effectors of programmed cell death during plant senescence. |
