mmu-mir-30b: Mmu-mir-30b is a microRNA that has been studied in various contexts. Primers for mmu-mir-30b were purchased from Thermo Fisher Scientific for use in a TaqMan microRNA assay [PMC8262936]. In one study, an expression plasmid of mmu-mir-30b-5p and an empty vector control were purchased from Origene for mmu-mir-30b transfection experiments [PMC8745227]. Mmu-mir-30b, along with other miRNAs such as mmu-mir-30c, mmu-mir-21, and mmu-mir-206, is predicted to target TIMP-2 and TIMP-3 mRNAs [PMC3030602]. In another study, cells were cotransfected with Mkrn3 3' UTR-luc reporter and either a control vector or an expression vector for mmu-mir-30b [PMC6863565]. The Mkrn3 3' UTR luciferase reporter construct and the precursor expression plasmid for mmu-mir-30b were obtained from Genecopoeia [PMC6863565]. Furthermore, in a study on DIO mice, it was found that mmu-miR-16, mmu-miR17, and other miRNAs including mmu-miR21 and mmu-miR19b were downregulated in the DIO mice compared to DIO + LFD mice [PMC4571067]. These findings suggest that the expression of miRNAs such as mmu-mir-30b can be modulated in various biological contexts.