Overview
Protein synthesis is a critical integration point for cellular metabolism, growth, and gene expression. The Darnell lab (opening September 2024) studies the relationship between amino acid metabolism and protein synthesis in cancer cells, seeking to understand how and why amino acid limitation leads to codon-specific ribosome stalling and premature fall-off that inhibits protein production. We employ a variety of genetic and biochemical techniques including fluorescent reporter development, ribosome profiling, charged tRNA-seq, and metabolite/protein mass spectrometry to investigate this direct control of gene expression by amino acid physiology and the tRNA pool.
We are hiring graduate students, research technicians, and postdocs. If you are interested in joining, reach out to Alicia to discuss!
Current Appointments & Affiliations
Recent Publications
Ribosome-associated quality control of aberrant protein production during amino acid limitation.
Preprint · January 15, 2026 Full text Link to item CiteThe ribosome ubiquitination code: fine-tuning translation under stress.
Journal Article Trends Biochem Sci · September 2025 It has become evident that a complex code of ribosome ubiquitination regulates protein synthesis, particularly in stress conditions. Ubiquitin is known largely for its role in protein stability; however, new high-throughput screening and advances in proteo ... Full text Link to item CiteA non-syndromic orofacial cleft risk locus links tRNA splicing defects to neural crest cell pathologies.
Journal Article Am J Hum Genet · May 1, 2025 Orofacial clefts are the most common form of congenital craniofacial malformation worldwide. The etiology of these birth defects is multifactorial, involving genetic and environmental factors. However, in most cases, the underlying causes remain unexplaine ... Full text Link to item CiteRecent Grants
Pharmacological Sciences Training Program
Inst. Training Prgm or CMEPreceptor · Awarded by National Institutes of Health · 2025 - 2030The role of ribosome collisions in arginine deprivation therapy
FellowshipPrincipal Investigator · Awarded by Hope Funds for Cancer Research · 2026 - 2029Stalling cancer at the ribosome
ResearchPrincipal Investigator · Awarded by V Foundation for Cancer Research · 2025 - 2028View All Grants