Biochemistry

eLife Assessment

This work presents valuable new data on the role of D-Serine and how it competes with its stereoisomer L-Serine to influence metabolism. The work presents a variety of convincing experimental data combined with simulated results to investigate the mechanisms focused on one-carbon metabolism, which is relevant for several research fields. However, some claims are only partially supported by data, and critical areas comparing L- vs D-Serine and further mechanistic studies are required. Furthermore, while the work has potential for various fields, the work has only been studied in a limited cell type and context.

eLife Assessment

This important study clarifies the mechanism by which the kinesin-10 motor protein, chromosome-associated kinesin, Kid (KIF22), enables chromosome movement during mitosis, demonstrating that human and Xenopus Kid proteins function as processive, homodimeric kinesins capable of processive microtubule plus-end motility. The convincing work highlights that Kid can recruit and transport duplex DNA along microtubules via its conserved C-terminal DNA binding domain, revising our understanding of chromokinesins' role in chromosome motility during mitosis. It will be of interest to those in the molecule motor community working at the molecular, cellular, and organismal levels.