Table 1. Krt family transcripts in ureter development, as assessed by RNA arrays.

Affy ID	Transcript Name	Bottom.16 vs. Bottom.14			Top.16 vs.Top.14
		pplr	p.value	q.value	pplr	p.value	q.value
1422481_at	Krt1	0.37963	0.4209	0.4452	0.11624	0.0249	0.0986
1427154_at	Krt2	0.50323	0.4619	0.4639	0.52771	0.0826	0.1844
1418735_at	Krt4	0.47142	0.8244	0.5969	0.00100	0.0014	0.0206
1438394_x_at	Krt4	0.53526	0.8580	0.6061	0.00138	0.0008	0.0146
1424096_at	Krt5	0.60885	0.0990	0.2081	0.39254	0.3884	0.3940
1422783_a_at	Krt6a	1.00000	0.0005	0.0083	0.99985	0.0199	0.0876
1422784_at	Krt6a	1.00000	0.0000	0.0005	0.99997	0.0002	0.0072
1427700_x_at	Krt6a	1.00000	0.0000	0.0018	0.99923	0.0099	0.0606
1422588_at	Krt6b	0.53356	0.0206	0.0818	0.53029	0.0259	0.1006
1423952_a_at	Krt7	1.00000	0.0000	0.0013	1.00000	0.0001	0.0034
1420647_a_at	Krt8	1.00000	0.0002	0.0040	1.00000	0.0001	0.0036
1423691_x_at	Krt8	0.99997	0.0004	0.0075	0.99998	0.0002	0.0065
1435989_x_at	Krt8	1.00000	0.0003	0.0064	1.00000	0.0001	0.0051
1452166_a_at	Krt10	0.17502	0.1615	0.2731	0.02235	0.0044	0.0386
1419230_at	Krt12	0.52232	0.0537	0.1462	0.51138	0.0213	0.0911
1419231_s_at	Krt12	0.51139	0.3999	0.4347	0.50808	0.2976	0.3459
1422454_at	Krt13	1.00000	0.0000	0.0007	1.00000	0.0001	0.0051
1437344_x_at	Krt13	0.50704	0.0247	0.0913	0.50506	0.5159	0.4493
1441863_x_at	Krt13	1.00000	0.0000	0.0012	1.00000	0.0065	0.0484
1423935_x_at	Krt14	1.00000	0.0001	0.0024	0.07911	0.8626	0.5650
1455573_at	Krt14	0.50210	0.1084	0.2188	0.50192	0.0954	0.1978
1460347_at	Krt14	1.00000	0.0001	0.0022	0.05873	0.9688	0.5928
1422667_at	Krt15	1.00000	0.0000	0.0000	0.97034	0.0316	0.1121
1448932_at	Krt16	0.49919	0.7411	0.5721	0.49799	0.6516	0.5005
1420193_at	Krt17	0.50183	0.9514	0.6310	0.49543	0.2494	0.3181
1423227_at	Krt17	0.00000	0.0543	0.1473	0.00000	0.0021	0.0258
1448169_at	Krt18	0.99998	0.0007	0.0097	0.99999	0.0002	0.0066
1417156_at	Krt19	1.00000	0.0000	0.0008	1.00000	0.0001	0.0028
1426284_at	Krt20	1.00000	0.0000	0.0013	1.00000	0.0000	0.0006
1418213_at	Krt23	0.99999	0.0003	0.0059	0.99997	0.0001	0.0028
1453327_at	Krt24	0.49291	0.4624	0.4641	0.49358	0.5114	0.4475
1418173_at	Krt25	0.49782	0.4264	0.4478	0.50570	0.0270	0.1031
1436160_at	Krt26	0.49957	0.7225	0.5660	0.50066	0.9046	0.5765
1449378_at	Krt27	0.49672	0.5099	0.4856	0.49879	0.5376	0.4579
1430132_at	Krt28	0.49836	0.4118	0.4408	0.50447	0.9682	0.5927
1458354_x_at	Krt28	0.48162	0.0922	0.2000	0.51770	0.5275	0.4541
1421589_at	Krt31	0.50264	0.2633	0.3533	0.50378	0.5817	0.4761
1420728_at	Krt32	0.49806	0.2001	0.3069	0.51330	0.6681	0.5059
1449387_at	Krt33a	0.49860	0.1085	0.2189	0.49872	0.3192	0.3586
1427179_at	Krt33b	0.49789	0.9921	0.6399	0.49425	0.6029	0.4834
1418742_at	Krt34	0.59709	0.0271	0.0967	0.50807	0.8536	0.5624
1420409_at	Krt35	0.49707	0.1695	0.2804	0.49951	0.1533	0.2492
1427751_a_at	Krt36	0.50470	0.9591	0.6330	0.51418	0.0241	0.0968
1437440_at	Krt39	0.52993	0.0874	0.1940	0.51829	0.0163	0.0787
1430208_at	Krt42	0.50579	0.3548	0.4110	0.51001	0.4374	0.4160
1439765_x_at	Krt42	0.50281	0.1225	0.2343	0.51078	0.7373	0.5279
1448457_at	Krt71	0.49284	0.6580	0.5439	0.50034	0.0290	0.1068
1419840_at	Krt72-ps	0.50092	0.7665	0.5796	0.51316	0.1773	0.2685
1436557_at	Krt73	0.48431	0.4368	0.4527	0.50170	0.2193	0.2972
1427378_at	Krt75	1.00000	0.0000	0.0000	1.00000	0.0001	0.0042
1453279_x_at	Krt76	0.53986	0.5306	0.4944	0.51653	0.5943	0.4805
1433923_at	Krt77	0.50160	0.6390	0.5369	0.43607	0.1790	0.2699
1438849_at	Krt78	0.54714	0.0002	0.0042	0.51121	0.0072	0.0508
1427352_at	Krt79	0.49871	0.0649	0.1635	0.50595	0.1029	0.2056
1419619_at	Krt80	0.53025	0.2369	0.3345	0.54021	0.1621	0.2563
1427290_at	Krt81	0.51316	0.5903	0.5186	0.52187	0.1735	0.2656
1451551_at	Krt84	0.49913	0.2695	0.3579	0.50030	0.0329	0.1143
1460185_at	Krt85	0.50411	0.3539	0.4105	0.50756	0.0672	0.1655
1427365_at	Krt86	0.50882	0.9997	0.6415	0.50098	0.8896	0.5724
1434535_at	Krt222	0.49923	0.0647	0.1633	0.51431	0.0110	0.0641
1457354_at	Krt222	0.48953	0.8524	0.6045	0.53634	0.6315	0.4929

Key: bold font type denotes those transcripts which significantly increase between E14 and E16; italicized type denotes those transcripts which significantly decrease between E14 and E16; Affy ID represents the transcript ID on the microarray; p.value is the p.value obtained using the functions lmFit and eBayes from the Limma; the q.value is the FDR applied on the p.value. pplr (probability of positive log-ratio) values range from 0 to 1, with values closest to 0 representing the most significantly down-regulated probe sets and values closest to 1, representing the most significantly up-regulated probe sets. Values of 0.5 represent no significant change.