Arlen W. Johnson

Arlen W. Johnson is a Professor in the Department of Molecular Biosciences within the College of Natural Sciences at the University of Texas at Austin. His research program focuses on understanding the fundamental mechanisms of ribosome biogenesis and function.

Johnson's research interests center on how cells manufacture ribosomes and ensure their proper function during genome decoding and translation. His laboratory investigates the maturation processes of both large and small ribosomal subunits, with particular emphasis on quality control mechanisms that verify ribosomal functionality before engagement in protein synthesis. His work combines molecular genetics, biochemistry, and structural biology approaches to unravel the complex assembly pathways.

Analysis of Johnson's publication record reveals a consistent focus on ribosome biology spanning over two decades. His research has elucidated key mechanisms in ribosomal subunit export, maturation, and quality control, with significant contributions to understanding how the catalytic center of the ribosome is completed and verified. His collaborative work using cryo-electron microscopy has provided structural insights into ribosomal maturation intermediates.

Johnson maintains an active laboratory program investigating ribosome biogenesis, with ongoing research examining the timing mechanisms that control RNA helicase activity during small subunit assembly. His work continues to advance our understanding of this fundamental cellular process with implications for human health and disease.