The unique enzymatic and mechanistic properties of plant myosins

Arnon Henn, Einat Sadot

פרסום מחקרי: פרסום בכתב עתסקירהביקורת עמיתים

תקציר

Myosins are molecular motors that move along actin-filament tracks. Plants express two main classes of myosins, myosin VIII and myosin XI. Along with their relatively conserved sequence and functions, plant myosins have acquired some unique features. Myosin VIII has the enzymatic characteristics of a tension sensor and/or a tension generator, similar to functions found in other eukaryotes. Interestingly, class XI plant myosins have gained a novel function that consists of propelling the exceptionally rapid cytoplasmic streaming. This specific class includes the fastest known translocating molecular motors, which can reach an extremely high velocity of about 60μms(-1). However, the enzymatic properties and mechanistic basis for these remarkable manifestations are not yet fully understood. Here we review recent progress in understanding the uniqueness of plant myosins, while emphasizing the unanswered questions.

שפה מקוריתאנגלית
עמודים (מ-עד)65-70
מספר עמודים6
כתב עתCurrent Opinion in Plant Biology
כרך22
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 1 דצמ׳ 2014

ASJC Scopus subject areas

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