Seminar - Kelly Hughes

photo of Dr. Kelly Hughes
October 2, 2017 - 12:00pm
Location: 
601 Fairchild

Professor

Department of Biology

University of Utah

Host: John Hunt

Title: “Lost in translation: seeing the forest by focusing on the trees"

Abstract: A complex process translates messenger RNA (mRNA) base sequence into protein amino acid sequence.  Transfer RNAs must recognize 3-base codons in the mRNA to insert the correct amino acids into the growing protein.  Codon degeneracy makes decoding complicated in that multiple (synonymous) triplets can encode a single amino acid and multiple tRNAs can have the same anticodon.  Over the last twenty years, new developments in structural biology, genome sequencing and bioinformatics has elucidated the intricacies of the ribosome structure and the details of the translation process. High throughput analyses of sequence information support the idea that mRNA folding has a major effect on expression for codons at the 5'-end of mRNA (N-terminal region of a polypeptide).   Despite a forest of sequence data, significant details of the complex translation process can escape detection. However, a sensitive translation assay using classical genetic approaches has allowed a single tree in this forest to be revealing. 

Business Office

Department of Biological Sciences
500 Fairchild Center
Mail Code 2401
Columbia University
1212 Amsterdam Avenue
New York, NY 10027

Academic Office

Department of Biological Sciences
600 Fairchild Center
Mail Code 2402
Columbia University
1212 Amsterdam Avenue
New York, NY 10027
biology@columbia.edu
212 854-4581