TABLE 6.

H. pylori genes of unknown function down-regulated ≥2-fold with decreasing medium pH with and without urea

Avg ratio (exptl pH-Cy5-red/pH 7.4-Cy3-green)a							GenBank accession no.
pH 7.4	pH 6.2		pH 5.5		pH 4.5
5 mM urea (n = 3)	5 mM urea (n = 3)	No urea (n = 4)	5 mM urea (n = 4)	No urea (n = 3)	5 mM urea (n = 4)	No urea (n = 4)
1.03	1.00	0.97	1.09	1.07	0.99	0.38	HP0022
1.04	1.08	1.20	1.14	1.05	0.98	0.39	HP0162
1.01	1.08	1.13	0.98	1.07	0.73	0.48	HP0234
0.91	0.94	1.04	0.92	1.27	0.96	0.29	HP0552
0.96	0.86	0.99	0.78	0.65	0.86	0.31	HP0707
1.03	0.94	0.98	0.97	0.76	0.78	0.35	HP0926
0.86	0.96	1.05	0.91	0.68	0.79	0.35	HP0946
1.01	0.99	1.10	0.93	0.95	1.00	0.35	HP0161
0.91	0.97	0.85	0.80	0.51	0.62	0.42	HP0270
1.07	0.92	1.11	0.94	0.67	0.89	0.48	HP0369
0.92	1.10	1.05	0.91	0.97	0.89	0.41	HP0582
0.94	0.56	0.31	0.31	0.35	0.36	0.20	HP0603
1.01	0.96	0.91	0.69	0.43	0.73	0.37	HP0838
0.92	0.95	0.84	0.85	0.65	0.52	0.44	HP0863
0.99	0.75	0.71	0.78	0.69	0.41	0.45	HP0864
1.17	1.11	0.99	0.91	0.94	0.96	0.47	HP1029
0.98	0.98	1.06	0.93	0.79	0.88	0.33	HP1106
0.97	1.03	1.21	0.94	0.93	1.05	0.38	HP1124
1.00	0.94	0.29	0.63	0.12	0.32	0.42	HP1217
1.09	0.68	0.43	0.43	0.37	0.45	0.45	HP1334
1.08	0.91	0.65	0.59	0.28	0.64	0.48	HP1377
1.02	0.73	0.88	0.79	0.41	0.52	0.31	HP1502
0.99	1.00	1.10	0.92	0.88	0.97	0.41	HP1546