X-Message-Number: 19162 Date: Mon, 27 May 2002 16:55:37 -0700 (PDT) From: Driven FromThePack <> Subject: Chemical activity at cryo temps per recent paper? Crossposted from Extropian list: This Nature article (subscription required): Berglund, G. I., et al "The catalytic pathway of horseradish peroxidase at high resolution" Nature 417:463-468 (2002) http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v417/n6887/full/417463a_fs.html contains the following statement: "Electron transfer reactions and proton-coupled electron transfer processes readily occur at cryogenic temperatures in protein crystals along with small-scale movements of ligands and side chains." I was under the impression that when frozen to LN2 temperatures all chemistry came ceased. Is this inaccurate? Any feelings about what impact this might have on cryonic suspendees? Robert __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=19162