The Effects of Mutations in a Highly Conserved Site on the Alpha-4 Helix of KIF18A

Presenter's Name(s)

Olivia Budington

Conference Year

2023

Abstract

KIF18A is a multitalented mitotic kinesin that promotes chromosome alignment and maintains spindle shape. However, how KIF18A is regulated to perform its roles within the cell is not well understood. To investigate potential mechanisms of regulation, the functional effects of modifications at a conserved serine residue (S284) in the motor domain of KIF18A were examined. We found that mutations at S284 cause altered localization of KIF18A, chromosome unalignment, and spindle malformation. This work highlights the potential for modifications at this conserved motor domain residue to regulate kinesin function.

Primary Faculty Mentor Name

Jason Stumpff

Graduate Student Mentors

Katie Queen

Status

Undergraduate

Student College

College of Arts and Sciences

Second Student College

Patrick Leahy Honors College

Program/Major

Biology

Primary Research Category

Clinical

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The Effects of Mutations in a Highly Conserved Site on the Alpha-4 Helix of KIF18A

KIF18A is a multitalented mitotic kinesin that promotes chromosome alignment and maintains spindle shape. However, how KIF18A is regulated to perform its roles within the cell is not well understood. To investigate potential mechanisms of regulation, the functional effects of modifications at a conserved serine residue (S284) in the motor domain of KIF18A were examined. We found that mutations at S284 cause altered localization of KIF18A, chromosome unalignment, and spindle malformation. This work highlights the potential for modifications at this conserved motor domain residue to regulate kinesin function.