Authors: Chenyun Guo Vitali Tugarinov
Publish Date: 2009/12/03
Volume: 46, Issue: 2, Pages: 127-133
Abstract
Methyl 13CHD2 isotopomers of all methylcontaining aminoacids can be observed in residually protonated samples of large proteins obtained from U13C1Hglucose/D2Obased bacterial media with sensitivity sufficient for a number of NMR applications Selective detection of some subsets of methyl groups Alaβ Thrγ2 is possible using simple ‘outandback’ NMR methodology Such selective methyldetected ‘outandback’ NMR experiments allow complete assignments of threonine γ2 methyls in residually protonated U13C1Hglucose/D2Oderived samples of an 82kDa enzyme Malate Synthase G U13C1Hglucose/D2Oderived protein samples are relatively inexpensive and are usually available at very early stages of any NMR study of highmolecularweight systems
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