<cell biology> Subunits from which a larger structure is built. Thus the tubulin heterodimer is the protomer for microtubule assembly, G actin the protomer for F actin. Because it avoids the difficulty that arises with, for example: dimers that serve as sub units for assembly, it is a useful term that deserves wider currency.

This entry appears with permission from the Dictionary of Cell and Molecular Biology

(11 Mar 2008)

protolignin, protolysate, protolysosome, protomartyr < Prev | Next > protomerite, protometrocyte, protomorphic

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