Identification, genomic organization, and alternative splicing of KNSL3, a novel human gene encoding a kinesin-like protein.

Proteins of the kinesin superfamily are microtubule-dependent molecular motors that play important roles in organelle transport and cell division. Through genomic sequencing and use of the RT-PCR technique, we have identified and characterized KNSL3 (kinesin-like 3), a novel member of the kinesin-like protein family in humans. We determined its genomic organization and detected four alternatively spliced transcripts. KNSL3 was expressed ubiquitously, but sizes and relative amounts of the major products were different in each of the tissues examined. Alternative splicing, along with the multiplicity of genes in the molecular family that includes KNSL3, produce diversity among the C-terminal ends of kinesins. These observations may contribute to an understanding of the specificity of different kinesins with respect to organelle binding.

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