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Status
Public on Sep 01, 2004
Title
Sporulation gerE mutant Hour 5.5 exp. 3
Sample type
RNA
Channel 1
Source name
wild type (PY79 strain)
Organism
Bacillus subtilis
Extracted molecule
total RNA
Channel 2
Source name
gerE mutant (PE454 strain)
Organism
Bacillus subtilis
Extracted molecule
total RNA
Description
Strains PY79 and PE454 were grown in parallel in hydrolysed casein medium at 37°C to an OD600 of 0.6. Sporulation was induced by resuspension in Sterlini-Mandelstam medium at 37C. Five hour and thirty minutes after resuspension, 25 ml of each culture were collected for RNA isolation and immediately mixed with an equal volume of methanol at –20C. RNA was isolated with a Hot Phenol/Trizol procedure. cDNA was prepared from 50 ug tot RNA and fluorescently labeled using Superscript Reverse Transcriptase and Cy5-dUTP for the RNA sample from strain PY79 and Cy3-dUTP for the RNA sample from strain PE454. Protocols for RNA isolation, cDNA preparation and labeling, hybridization to the microarrays and washing procedure can be found at http://mcb.harvard.edu/losick This is the third repetition of the experiment at this time point.
Submission date
Jul 23, 2004
Last update date
Oct 28, 2005
Contact name
Patrick Yves Eichenberger
E-mail(s)
[email protected]
Phone
617-495-0532
Fax
617-496-4642
URL
http://mcb.harvard.edu/losick
Organization name
Harvard University
Department
Molecular and Cellular Biology
Lab
Losick
Street address
16 Divinity Avenue
City
Cambridge
State/province
MA
ZIP/Postal code
02138
Country
USA
Platform ID
GPL1353
Series (1)
GSE1620
Sporulation in Bacillus subtilis (mother cell)
Data table header descriptions
ID_REF
CH1_MEDIAN
channel1 median signal
CH1_MEAN
channel1 mean signal
CH1_SD
channel1 signal standard deviation
CH1_BKD_MEDIAN
channel1 median background
CH1_BKD_MEAN
channel1 mean background
CH1_BKD_SD
channel1 background standard deviation
CH2_MEDIAN
channel2 median signal
CH2_MEAN
channel2 mean signal
CH2_SD
channel2 signal standard deviation
CH2_BKD_MEDIAN
channel2 median background
CH2_BKD_MEAN
channel2 mean background
CH2_BKD_SD
channel2 background standard deviation
VALUE
log ratio (log2 of PRE_VALUE)
FLAGS
user defined flag (default=0, bad=-100, empty=-75)
PRE_VALUE
ratio channel1 median signal minus median background and channel2 median signal minus median background, not normalized
Data table
ID_REF
CH1_MEDIAN
CH1_MEAN
CH1_SD
CH1_BKD_MEDIAN
CH1_BKD_MEAN
CH1_BKD_SD
CH2_MEDIAN
CH2_MEAN
CH2_SD
CH2_BKD_MEDIAN
CH2_BKD_MEAN
CH2_BKD_SD
VALUE
FLAGS
PRE_VALUE
1
1305
1268
485
227
279
798
1135
1106
382
273
319
857
0.3219283
0
1.25
2
499
531
156
226
234
61
571
578
89
271
275
50
-0.1376483
0
0.909
3
1029
1061
271
225
234
88
980
960
248
272
275
49
0.1826923
0
1.135
4
1239
1278
367
224
227
63
1258
1319
345
271
280
120
0.0398403
0
1.028
5
1071
1123
311
223
229
62
1174
1236
371
272
277
120
-0.0892673
0
0.94
6
458
499
332
223
225
58
642
654
210
277
281
51
-0.6326293
0
0.645
7
526
520
122
219
223
56
654
646
104
278
284
72
-0.2880653
0
0.819
8
321
330
87
218
220
56
445
449
73
276
274
42
-0.7107563
0
0.611
9
498
495
100
218
221
54
484
500
92
274
274
41
0.4200783
0
1.338
10
1524
1521
381
218
221
56
1379
1390
297
270
272
43
0.2363403
0
1.178
11
464
480
115
218
224
58
693
724
156
271
273
40
-0.7759603
0
0.584
12
541
554
117
213
231
188
703
716
133
272
284
168
-0.3883553
0
0.764
13
313
317
74
221
231
175
429
447
86
273
284
155
-0.7563313
0
0.592
14
338
345
87
227
224
52
461
463
69
280
284
148
-0.7107563
0
0.611
15
442
454
127
219
223
54
533
549
93
277
278
41
-0.1992553
0
0.871
16
336
341
82
218
223
53
470
472
65
272
276
42
-0.7441973
0
0.597
17
492
487
127
213
216
57
650
650
127
274
280
111
-0.4285663
0
0.743
18
611
611
125
236
240
64
631
647
122
279
285
72
0.0894983
0
1.064
19
389
399
102
232
240
71
462
459
74
273
279
58
-100
20
814
832
327
226
236
87
788
801
259
279
285
61
0.2091413
0
1.156
Total number of rows: 4623 Table truncated, full table size 303 Kbytes .Supplementary file
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