TABLE 1.

Nucleotide specificity of Hda-cHis Fr II

Hda-cHis Fr II was incubated at 30 °C for 20 min in buffer containing [³H]ADP (0.5 μm) and competitor nucleotide (100 μm), before a filter retention assay was performed. The error range with each experiment was 0.5–6.5%.

Competitor	Bound ADP	Competitor	Bound ADP
	% control		% control
None	(100)	AMP	84
ADP	2.0	dATP	88
ATP	44	dGTP	105
GTP	107	dCTP	100
CTP	106	dTTP	88
UTP	97	ppGpp	93
GDP	99	cAMP	103
CDP	92
UDP	104