Medical Definition of M ring
1.
Innermost (motor) ring of the bacterial flagellar base, located in the outer leaflet of the plasma membrane. It is this ring that is linked to the hook region (and thus to the flagellum itself) and that rotates. Composed of 16 or 17 subunits (one more or less than the S ring).
(13 Nov 1997)
Lexicographical Neighbors of M Ring
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