@article { WOS:000173352700018,
	title = {Persistently conserved positions in structurally similar, sequence dissimilar proteins: Roles in preserving protein fold and function},
	journal = {PROTEIN SCIENCE},
	volume = {11},
	number = {2},
	year = {2002},
	month = {FEB},
	pages = {350-360},
	issn = {0961-8368},
	doi = {10.1110/ps.18602},
	author = {Friedberg, I and Margalit, H}
}
