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Question is asked above, simply put.

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    $\begingroup$ Transcriptome.. $\endgroup$ – WYSIWYG Jul 3 '15 at 13:47
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    $\begingroup$ @AliceD It means all RNA. When you want to imply profile you usually say transcriptome profile or transcriptome profiling (the process of finding the profile). For miRNAs they say miRnome profiling. Also terms like dynamic transcriptome etc have been used. $\endgroup$ – WYSIWYG Jul 3 '15 at 13:49
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    $\begingroup$ @WYSIWYG it's not just the transcriptome (mRNA), as there are also transfer RNAs, micro RNAs, ribosomal RNAs, etc. $\endgroup$ – MattDMo Jul 3 '15 at 14:35
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    $\begingroup$ @MattDMo Transcriptome includes all RNAs, not just mRNAs (anything that is transcribed). People usually are not interested in rRNAs in their analyses; so they exclude them. That's why probably most readers may have an impression that transcriptome means just mRNAs. $\endgroup$ – WYSIWYG Jul 3 '15 at 14:39
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    $\begingroup$ I'd agree with WYSIWYG. The two are usually used in a different sense. Total RNA is typically used when referring to the sum total mass, as in RNA isolation, but not the composition (on the level of specific RNA expression patterns). Transcriptome is typically used when referring to the relative expression of each individual RNA transcript within a cell. $\endgroup$ – InactionPotential Jul 3 '15 at 14:47
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Qiagen and Life Technologies call it RNA content, total RNA, or total cellular RNA.

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    $\begingroup$ i hear 'total RNA' often $\endgroup$ – shigeta Jul 3 '15 at 13:53

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