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MicroRNA Research

Study microRNA regulatory networks

MicroRNA functional analysis

  • Isolate from exosomes
  • Profile by qPCR
  • Overexpress
  • Knockdown

Everything you need for microRNA research

Integrated solutions for microRNA analysis

SBI has developed innovative technologies and tools for qPCR Expression profiling, Cloning, Overexpression and Knockdown of microRNAs as well as 3'UTR identification systems to enhance your research discoveries.


Profiling and Cloning

Exosome isolation for biomarkers
ExoQuick™ exosome precipitation reagent


Serum microRNA expression profiling by qPCR from exosomes
SeraMir™ Kit and qPCR Arrays

Discover novel exosome RNA biomarkers with Next-Gen Sequencing services
From serum, plasma, urine and media to RNA sequence identification in 3-4 weeks.

MicroRNA expression profiling by qPCR
QuantiMir™ RT Kit and qPCR Arrays

Discovery and Cloning of MicroRNAs
Immunopurify RISC complexes and Clone MicroRNAs



Overexpress MicroRNAs
Lenti-miR Human and Mouse MicroRNA Precursor Clone Collections



Knockout and Knockdown

Bi-Allelic MicroRNA Knockout
miR-KO Tale Nucleases and HR Donor Vectors


Knockdown MicroRNAs
miRZip anti-microRNA Lentivectors



3'UTR Target Identification

Identify 3'UTR Targets of MicroRNAs
miR-Selection dual sensor system to identify 3' UTR targets of microRNAs


Small RNAs with very large impacts

MicroRNAs are a class of naturally-occurring, small non-coding RNAs that control gene expression by translational repression or mRNA degradation; they are widely expressed throughout the plant and animal kingdoms and may comprise 1-5% of animal genes. Since the discovery of lin-4 and let-7 in Caenorhabditis elegans, over six thousand microRNAs have been identified through genomic and bioinformatic approaches. Like protein-coding genes, microRNAs are transcribed in the nucleus as long primary transcripts (pri-microRNAs). However, distinct from protein-coding genes, they are subsequently cleaved by the nuclear RNase III enzyme Drosha to produce structured, stem-loop precursor molecules (pre-microRNAs) of 70-100 nucleotides (nt) in length. The pre-microRNAs are then exported to the cytoplasm in a process involving exportin-5, where the RNase III enzyme Dicer further processes them into mature microRNAs (~22 nt). One strand of the microRNA duplex is subsequently incorporated into the RNA-induced silencing complex (RISC) that regulates target gene expression. Although the mechanisms of microRNA-mediated gene silencing are not yet fully understood, evidence indicates that targeted mRNAs may be translationally repressed or de-adenylated and turned over, a process termed target mRNA decay.