Keywords: اسپلایشی با فرمت همپوشانی; BAC; bacterial artificial chromosome; CerS; ceramide synthase; CK; cytokeratin; DAG; diacylglycerols; DTA; diphtheria toxin A; ES-cells; embryonic stem cells; FC; fold change; FDR; false discovery rate; FFA; free fatty acids; frt; Flp recognition target;