id	keyword
ddj-47	flux tubes
ddj-47	amino
ddj-47	model
ddj-47	dna
ddj-47	acids
ddj-47	protein
ddj-47	folding
ddj-47	hydrogen
ddj-47	protein folding
ddj-47	dna decipher
ddj-47	journal
ddj-47	bonds
ddj-47	o =
ddj-47	alpha
ddj-47	case
ddj-47	water