TABLE 2.

Initial influx rates and asymptote values of amino acids transported into McCoy cells infected with strain DK20 of C. trachomatis

Amino acid	Initial influxa (nmol/μl of cell water/min) into:		Asymptote value (μM)b for:
	Infected cells	Mock-infected cells	Infected cells	Mock-infected cells
l-His	1,425 ± 73*	1,122 ± 58	2,427 ± 140*	1,971 ± 23
l-Trp	410 ± 30*	302 ± 25	395 ± 6*	304 ± 16
l-Lys	618 ± 41*	455 ± 25	7,509 ± 197*	6,204 ± 46
AIB	420 ± 11*	311 ± 14	5,411 ± 373	4,865 ± 165

^aValues are means ± standard deviations for triplicate determinations in one experiment. Linear regression fits to the influx data were used, and correlation coefficients were always >0.99. ∗, significantly different from values for mock-infected cells (P < 0.05). 

^bValues shown are approximations obtained from uptake data and are means ± standard deviations for triplicate determinations in one experiment. Uptake of Lys was not fully at equilibrium, so the maximum influx value is shown. ∗, significantly different from values for mock-infected cells (P < 0.05).