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DTSTART:20070311T020000
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DTSTAMP:20220104T112442
DTSTART;TZID=America/Detroit:20220131T160000
DTEND;TZID=America/Detroit:20220131T170000
SUMMARY:Lecture / Discussion:RNA Faculty Candidate Seminar
DESCRIPTION:In-person/Hybrid seminar co-hosted by the Center for RNA Biomedicine\, the Department of Biological Chemistry and the Department of Biophysics\n\nTalk title: “The scanning mechanism of mRNA translation initiation in humans”\n\nKeywords: mRNA\, translation\, ribosome\, helicase\n\nAbstract: Decoding the genetic information into protein is fundamental for all kingdoms of life. It requires precise mechanisms to transcribe the DNA into mRNA\, which then can be translated by the ribosome to produce proteins. Translation initiation of eukaryotic mRNAs is a dynamic process regulated by over a dozen protein eukaryotic initiation factors (eIFs). This process starts with the binding of eukaryotic initiation factors eIF1\, eIF1A\, eIF3\, eIF5\, and a ternary complex of eIF2–GTP–tRNAiMet (TC) to the 40S small ribosomal subunit\, forming the 43S preinitiation complex (43S PIC). Once assembled\, the 43S PIC is recruited to the 5′ untranslated region (UTR) of mRNA by the multifactor cap-binding complex eIF4F\, forming the 48S initiation complex (48S). The 48S then scans along the 5′ UTR mRNA to locate a start codon. The eIF4F binding site in the 48S and how mRNA is inserted into the mRNA channel in the 40S small ribosomal subunit remained unknown. To gain insights into the molecular mechanism underlining the assembly of the 48S\, we used cryo-electron microscopy to determine the structure of a reconstituted human 48S. The structure sheds light on the early events of translation initiation complex assembly\, including how eIF4F interacts with the 43S during the scanning process. \n\nIf you are having trouble registering\, please contact Martina Jerant at mjerant@umich.edu
UID:89608-21664520@events.umich.edu
URL:https://events.umich.edu/event/89608
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Basic Science,biolgical chemistry,biological,biological chemistry,biological science,biology,Biosciences,Chemistry,Research,Science,structural biology,structure
LOCATION:Taubman Biomedical Science Research Building - ABC Seminar rooms
CONTACT:
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