@article { ISI:000242367000018,
	title = {Unambiguous determination of the ionization state of a glycoside hydrolase active site lysine by H-1-N-15 heteronuclear correlation spectroscopy},
	journal = {JOURNAL OF THE AMERICAN CHEMICAL SOCIETY},
	volume = {128},
	number = {48},
	year = {2006},
	month = {DEC 6},
	pages = {15388-15389},
	issn = {0002-7863},
	doi = {10.1021/ja065766z},
	author = {Poon, David K. Y. and Schubert, Mario and Au, Jason and Okon, Mark and Withers, Stephen G. and McIntosh, Lawrence P.}
}
