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Journal ArticleDOI

Heterozygous mutations of the kinesin KIF21A in congenital fibrosis of the extraocular muscles type 1 (CFEOM1)

Koki Yamada, +44 more
- 02 Nov 2003 - 
- Vol. 35, Iss: 4, pp 318-321
TLDR
It is shown that individuals with CFEOM1 harbor heterozygous missense mutations in a kinesin motor protein encoded by Kif21A, highlighting an important new role for KIF21A and its stalk in the formation of the oculomotor axis.
Abstract
Congenital fibrosis of the extraocular muscles type 1 (CFEOM1; OMIM #135700) is an autosomal dominant strabismus disorder associated with defects of the oculomotor nerve. We show that individuals with CFEOM1 harbor heterozygous missense mutations in a kinesin motor protein encoded by KIF21A. We identified six different mutations in 44 of 45 probands. The primary mutational hotspots are in the stalk domain, highlighting an important new role for KIF21A and its stalk in the formation of the oculomotor axis.

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Citations
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Kinesin superfamily motor proteins and intracellular transport

TL;DR: The mechanisms by which different kinesin recognize and bind to specific cargos, as well as how kinesins unload cargo and determine the direction of transport, have now been identified and open exciting new areas of kinesIn research.
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ALS: a disease of motor neurons and their nonneuronal neighbors.

TL;DR: In this paper, a mutant superoxide dismutase (SOD1) was found to induce non-cell-autonomous motor neuron killing by an unknown gain of toxicity.
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Molecular biology of amyotrophic lateral sclerosis: insights from genetics.

TL;DR: An overview of the mechanisms for motor neuron death and the role of non-neuronal cells in ALS is presented and new insights are generated into the diverse molecular pathways involved in ALS pathogenesis.
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Molecular Motors in Neurons: Transport Mechanisms and Roles in Brain Function, Development, and Disease

TL;DR: Recent studies have begun to clarify the mechanisms of cargo selection and directional transport in subcellular compartments and molecular genetics has revealed unexpected roles for molecular motors in brain wiring, neuronal survival, neuronal plasticity, higher brain function, and control of central nervous system and peripheral nervous system development.
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Axonal transport: cargo-specific mechanisms of motility and regulation

TL;DR: An overview of axonal transport pathways is provided and their role in neuronal function is discussed and Retrograde transport, which plays a major role in neurotrophic and injury response signaling, is discussed.
References
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Journal ArticleDOI

Charcot-Marie-Tooth Disease Type 2A Caused by Mutation in a Microtubule Motor KIF1Bβ

TL;DR: It is shown that CMT2A patients contain a loss-of-function mutation in the motor domain of the KIF1B gene, clear indication that defects in axonal transport due to a mutated motor protein can underlie human peripheral neuropathy.
Journal ArticleDOI

All kinesin superfamily protein, KIF, genes in mouse and human

TL;DR: The identification and classification of all kinesin superfamily proteins (KIFs) in mouse and human genome transcripts are reported to set the foundation of KIF and intracellular transport research.
Journal ArticleDOI

A Kinesin Heavy Chain (KIF5A) Mutation in Hereditary Spastic Paraplegia (SPG10)

TL;DR: This finding suggests that the underlying pathology of SPG10 and possibly of other forms of hereditary spastic paraplegia may involve perturbation of neuronal anterograde (or retrograde) axoplasmic flow, leading to axonal degeneration, especially in the longest axons of the central nervous system.
Journal ArticleDOI

Oculomotor nerve and muscle abnormalities in congenital fibrosis of the extraocular muscles.

TL;DR: Evidence is presented that congenital fibrosis of theextraocular muscles results from an abnormality in the development of the extraocular muscle lower motor neuron system, suggesting that the muscle pathology extends beyond the muscles innervated by the superior division of cranial nerve III.
Journal ArticleDOI

Novel Dendritic Kinesin Sorting Identified by Different Process Targeting of Two Related Kinesins: KIF21A and KIF21B

TL;DR: It is suggested that a novel kinesin sorting mechanism is used by neurons to localize KIF21B protein to dendrites since its mRNA is restricted to the cell body.
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