ON THE BACK COVER: Spindle assembled around sperm chromosomes in Xenopus egg extracts in the presence of a mutant TPX2 protein (X. laevis) that enhances microtubule nucleation, leading to disruption of spindle poles and the formation of ectopic microtubule asters. Microtubules are labeled in red, DNA in blue, and TPX2 is green. Credit: Guadalupe Sepulveda, Molecular and Cell Biology Department, University of California, Berkeley, USA. image

ON THE BACK COVER: Purified tubulin (from Goat brain) visualized using Scanning electron microscope. Credit: Nameeta Choudhary and Priyanka Singh (Department of Bioscience & Bioengineering, Indian Institute of Technology Jodhpur, Rajasthan, India). image

ON THE FRONT COVER: MDA‐MB‐231 cells treated with Mps1 kinase inhibitor AZ3146 (5 μM) for 20 h were examined for primary cilia by staining with antibodies against axoneme marker acetylated tubulin (red), and ciliary membrane marker Arl13B (green). DNA is stained by Hoechst 33358 (blue). Credit: Arpita Dutta and Shubhra Majumder (CellBio Lab, Institute of Health Sciences, Presidency University, Kolkata, India). image

ON THE FRONT COVER: Maximum intensity projections of Drosophila larval muscles stained to label F‐actin (cyan), NUAK (magenta) or nuclei (yellow).Credit: Prabhat Tiwari and Erika R Geisbrecht (Kansas State University, USA). image

ON THE BACK COVER: Drosophila larval muscles expressing an activated form of NUAK (T226E) stained to visualize F‐actin (cyan), NUAK (magenta), or Frl (yellow). Irregular striations and altered subcellular localization of NUAK and Frl are apparent.Credit: Prabhat Tiwari and Erika R Geisbrecht (Kansas State University, USA). image

ON THE INNER FRONT COVER: F‐actin‐rich osteocyte dendrites in 5‐day‐old mouse tibia. F‐actin (orange), α‐actinin (green), fimbrin (magenta). Overlay includes nuclear stain (blue, Hoechst 33342).Credit: Rosa M. Guerra, Velia Fowler, and Liyun Wang (University of Delaware, USA) image