Detecting MicroRNA Precursors Using SAGE
Author Information
Author(s): Ge Xijin, Wu Qingfa, Wang San Ming
Primary Institution: Center for Functional Genomics, Division of Medical Genetics, Department of Medicine, ENH Research Institute
Hypothesis
Can SAGE technology effectively detect microRNA precursors in human and mouse tissues?
Conclusion
SAGE data indicates the expression of eight human and 14 mouse known miRNA precursors and provides evidence for the existence of two human and seven mouse predicted miRNAs.
Supporting Evidence
- SAGE detected 22 known and 10 predicted mammalian miRNAs.
- Four SAGE tags matched a cluster of four human miRNAs expressed in embryonic stem cells.
- LongSAGE data suggest the existence of a mouse homolog of human and rat mir-493.
Takeaway
This study shows that a special technique called SAGE can help scientists find tiny molecules in our cells that control how genes work, especially in embryos.
Methodology
The study analyzed longSAGE libraries from human and mouse tissues to identify known and predicted miRNA precursors.
Limitations
SAGE tags are subject to sequencing errors and do not provide full sequences of miRNA precursors.
Participant Demographics
The study involved human and mouse embryonic tissues.
Digital Object Identifier (DOI)
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