title: SAGE identification of gene transcripts with profiles unique to pluripotent mouse R1 embryonic stem cells.
abstract: The identification of signals that regulate pluripotentiality and self-renewal is fundamental to the understanding of stem cell biology. To quantify the functionally active genome of pluripotent R1 embryonic stem (ES) cells, we used the method of serial analysis of gene expression (SAGE) to sequence a total of 140,313 SAGE tags. Of 44,569 unique transcripts, 9% matched known genes in the nonredundant GenBank database, whereas >35% of the unique tags did not match any known mouse sequence. Comparisons of relatively abundant (> or = 20) tags in the ES cell SAGE catalog with publicly available SAGE data sets identified 16 transcripts with an abundance profile unique to pluripotent R1 ES cells. We confirmed 12 by RT-PCR including those encoding KLF2, a transcription factor; galanin, a hypothalamic neurohormone; BAX, a proapoptotic signaling factor; and CDK4 and PAL31, cell cycle progression associated proteins. The data from this study provide a starting point for detailed transcriptome analyses of stem cells.
authors.affiliation: NIH, National Institute on Aging, 5600 Nathan Shock Drive, Baltimore, Maryland 21224, USA.
authors.forename: Sergey V
authors.initials: SV
authors.lastname: Anisimov
authors.forename: Kirill V
authors.initials: KV
authors.lastname: Tarasov
authors.forename: David
authors.initials: D
authors.lastname: Tweedie
authors.forename: Michael D
authors.initials: MD
authors.lastname: Stern
authors.forename: Anna M
authors.initials: AM
authors.lastname: Wobus
authors.forename: Kenneth R
authors.initials: KR
authors.lastname: Boheler
mesh_terms: D000818:Animals; D002454:Cell Differentiation / Q000235:genetics* / Q000502:physiology; D002460:Cell Line; D017077:Culture Media, Conditioned; D015870:Gene Expression; D020869:Gene Expression Profiling; D015723:Gene Library; D006131:Growth Inhibitors / Q000378:metabolism; D015850:Interleukin-6; D053605:Leukemia Inhibitory Factor; D008222:Lymphokines / Q000378:metabolism; D051379:Mice; D008969:Molecular Sequence Data; D012333:RNA, Messenger / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D013234:Stem Cells / Q000166:cytology* / Q000378:metabolism
chemical_list: D017077:Culture Media, Conditioned; D006131:Growth Inhibitors; D015850:Interleukin-6; D053605:Leukemia Inhibitory Factor; C507838:Lif protein, mouse; D008222:Lymphokines; D012333:RNA, Messenger