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Archaeal flagellum

Definition

The flagellum of Archaea is a long hair-like cell surface appendage made of polymerized flagellin with an attached hook. This rotating structure with switches propels the cell through a liquid medium. The archaeal flagellum is distinct from its bacterial equivalent in terms of architecture, composition and mechanism of assembly. Thinner (10-15 nm) compared to the bacterial flagellum (18-24 nm), it is usually composed of several types of flagellins and is glycosylated. The archeal flagellum is considered as a type IV pilus-like structure.

Synonyms

Archaeal flagella
Archaeal flagellar apparatus

Category

› Cellular component

Keywords

Archaeal flagellum

GOi

bacterial-type flagellum [ GO:0009288 ]

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