Covariate	PC1	PC2	PC3	PC4	PC5
PCImportance	4.43%	4.15%	3.42%	2.86%	2.55%
MicroarrayNumber	3.51E-06	3.18E-03	1.69E-04	5.72E-12	5.28E-35
MicroarrayPosition	0.865	0.614	0.894	0.729	0.350
TransfectionPlate	0.064	0.410	1.30E-03	4.34E-05	0.388
TransfectionRow	0.411	2.55E-02	2.79E-05	0.106	0.771
TransfectionColumn	1.04E-02	0.454	0.616	2.00E-02	0.254
ReplicateName	0.622	0.724	0.153	0.101	0.647
KDLevel	0.277	0.390	0.447	0.235	0.776
RIN	0.765	0.722	0.078	0.369	0.966
TransfectionDate	0.953	0.956	0.824	0.557	0.930