(biochem) any conjugated protein from which the prosthetic group has been removed, such as apohaemoglobin (the protein of haemoglobin without its haem group)
apoprotein ap·o·pro·tein (āp’ə-prō’tēn’, -tē-ĭn)
A polypeptide that combines with a prosthetic group to form a conjugated protein.
a normal, genetically regulated process leading to the death of cells and triggered by the presence or absence of certain stimuli, as DNA damage. noun (biology) the programmed death of some of an organism’s cells as part of its natural growth and development Also called programmed cell death apoptosis (āp’əp-tō’sĭs, āp’ə-tō’-) A natural process of […]
(in sponges) a pore in each of the saclike chambers formed by the evagination of the body wall, through which water passes into the excurrent canals.
aporepressor aporepressor ap·o·re·pres·sor (āp’ə-rĭ-prěs’ər) n. A repressor that combines with a specific corepressor to inhibit transcription of certain genes; it is a homeostatic mechanism for the regulation of repressible enzyme systems. Also called inactive repressor.
adjective tending to doubt Examples The aporetic voice is that which expresses wonder and perplexity. Word Origin from a Greek word meaning ‘to be at a loss’ adj. c.1600, from French aporetique, from Greek aporetikos, from aporeein “to be at a loss,” from aporos “impassable, impracticable, very difficult; hard to deal with; at a loss,” […]