The Arabidopsis kinesin-4, FRA1, requires a high level of processive motility to function correctly.

Abstract excerpt

Processivity is important for kinesins that mediate intracellular transport. Structure-function analyses of N-terminal kinesins (i.e. kinesins comprising their motor domains at the N-terminus) have identified several non-motor regions that affect processivity in vitro However, whether these structural elements affect kinesin processivity and function in vivo is not known. Here, we used an Arabidopsis thaliana...

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