RT Journal A1 Conrad, Christian A1 Erfle, Holger A1 Warnat, Patrick A1 Daigle, Nathalie A1 Lörch, Thomas A1 Ellenberg, Jan A1 Pepperkok, Rainer A1 Eils, Roland T1 Automatic Identification of Subcellular Phenotypes on Human Cell Arrays JF Genome Research JO Genome Research YR 2004 FD June 01 VO 14 IS 6 SP 1130 OP 1136 DO 10.1101/gr.2383804 UL http://genome.cshlp.org/content/14/6/1130.abstract AB Light microscopic analysis of cell morphology provides a high-content readout of cell function and protein localization. Cell arrays and microwell transfection assays on cultured cells have made cell phenotype analysis accessible to high-throughput experiments. Both the localization of each protein in the proteome and the effect of RNAi knock-down of individual genes on cell morphology can be assayed by manual inspection of microscopic images. However, the use of morphological readouts for functional genomics requires fast and automatic identification of complex cellular phenotypes. Here, we present a fully automated platform for high-throughput cell phenotype screening combining human live cell arrays, screening microscopy, and machine-learning-based classification methods. Efficiency of this platform is demonstrated by classification of eleven subcellular patterns marked by GFP-tagged proteins. Our classification method can be adapted to virtually any microscopic assay based on cell morphology, opening a wide range of applications including large-scale RNAi screening in human cells.