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Guillermo Calero, MD PhD University of Pittsburgh School of Medicine WEDNESDAY, May 6, 13:30 (EDT) "Fine-tuning Time Resolved Experiments to Capture Crystal Biochemistry" In-Person NSLS II - Bldg 745 room 183 (training room) Register in advance for this meeting: https://bnl.zoomgov.com/meeting/register/TztZw5fpSr-kBHygBEuzwA Time conversion Link: https://www.worldtimebuddy.com/<https://urldefense.com/v3/__https:/gcc02.safelinks.protection.outlook.com/?url=https*3A*2F*2Fwww.worldtimebuddy.com*2F&data=05*7C01*7Cgenoa.blankenship*40pnnl.gov*7C67ffe754733240e42d3e08da641ba4bc*7Cd6faa5f90ae240338c0130048a38deeb*7C0*7C0*7C637932367171794987*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000*7C*7C*7C&sdata=aSe2IUSomjge9ZW6zXdQ81fPzxpg8eawtRkoiOEJdXM*3D&reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSU!!P4SdNyxKAPE!Fd5kIAbibocFpkUaEbpqZZGm8tw-xiqb5oC4sfOklv6Kbbf-T3RvUobMSLrzyXNbfNVT9vMxJGuY1RsSqbc6MjpIABre1Q$> Abstract: Typically, interactions between enzymes and substrates (or inhibitors), are viewed in terms of small molecules binding to relatively rigid proteins. However, computational and experimental studies demonstrate that proteins undergo a variety of molecular motions over a wide range of timescales. Such conformational flexibility is integral to enzyme activity, drug action and drug resistance. Contemporary structural biology approaches resolve only the structures of thermodynamically stable species. By contrast, time resolved (TR) structural studies using crystallography or single particle cryoEM are innovative tools that reveals details of both the ligand binding process and the stepwise chemistry of the reaction, with important biomedical applications. Through a combination of TR techniques, including UV photolysis of caged substrates, we have used TR techniques to create the first molecular movies of: 1) b-lactam antibiotics binding to b-lactamases; 2) deoxynucleotide addition by HIV-1 Reverse Transcriptase (RT); 3) nucleotide addition by RNA polymerase II (Pol II); and 4) GTP hydrolysis by N-RAS. =================================== Vivian Stojanoff, PhD Education, Training, Outreach User Program p 1(631) 344 8375 e [email protected]<mailto:[email protected]> w https://www.bnl.gov/ps/lifesciences/<https://www.bnl.gov/ps/lsbr/> Address: Center for Biomolecular Structure National Synchrotron Light Source II Building 745 Brookhaven National Laboratory Upton NY 11973 ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
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