. 2006 Sep 7;1:27. doi: 10.1186/1745-6150-1-27

Table 5.

Overview of the GeneChip types

GeneChip	Feature size	Probe pairs	TF	No. of labs.	No. of arrays	Ka 0.95		Ka 0.99		Ka 0.995

						avg	SD	avg	SD	avg	SD
HuGeneFL	24	20	44	2	34	2.13	0.10	3.45	0.09	4.11	0.05
HG-U95Av2	20	16	36	4	77	2.09	0.09	3.04	0.08	3.48	0.16
HG-U95B to E	20	16	36	2	28	2.16	0.14	3.24	0.31	3.76	0.37
HG-U133A 2.0	11	11	22	6	91	2.11	0.05	3.10	0.15	3.56	0.18
HG-U133 Plus 2	11	11	22	2	28	2.12	---	3.03	---	3.44	---
HG-Focus	18	11	29	1	34	2.18	0.03	3.11	0.04	3.52	0.07
MG-Mu11kSubA, SubB	24	20	44	2	80	2.22	0.04	3.73	0.16	4.52	0.20
Mu19kSubA, B, C	24	20	44	1	12	2.26	---	3.95	---	4.56	---
MG-U74Av2	20	16	36	6	75	2.17	0.04	3.36	0.20	3.97	0.31
MG-U430A	11	11	22	1	20	2.07	0.03	2.95	0.03	3.34	0.03
RG-U34A	24	16	40	2	45	2.16	0.05	3.24	0.15	3.78	0.17
RT-U34 Neurobiology	24	16	40	1	40	2.08	---	3.12	---	3.38	---
Drosophila	20	14	34	1	6	2.17	---	3.21	---	3.67	---
E. Coli	24	15	39	2	53	2.19	---	3.31	---	3.78	---
ATH1	18	11	29	4	64	2.09	0.02	3.03	0.11	3.46	0.19
Arabidopis [s2]	24	16	40	1	7	2.15	---	2.89	---	3.18	---

The first two columns of data show the feature size and number of the probe pairs per probe set. TF is the technical factor defined as the sum of feature size and probe pairs. No. of lab gives the number of different laboratories, where the data were generated. No. of arrays gives the number of arrays per the GeneChip type. The last three columns give the mean K_αvalues at the probability 0.95, 0.99 and 0.995.