Basic Information

Symbol
hsa-mir-208b
RNA class
miRNA miRNA hairpin
Alias
MIR208B MicroRNA 208b Hsa-Mir-208b Hsa-MiR-208b-3p MIRN208B Hsa-Mir-208-P1_pre Hsa-MiR-208b-5p MIMAT0004960 MIMAT0026722 MI0005570 Mir-208b
Location (GRCh38)
Forensic tag(s)
Sudden cardiac death diagnosis

Sequence & Structure

Transcript ID
hsa-mir-208b
Sequence length
77 nt
GC content
0.4286

Secondary Structure

Generated by RNAfold
Minimum free energy (MFE) structure:
Secondary structure that contributes a minimum of free energy.
Ensemble properties:
Thermodynamic properties of the Boltzmann ensemble.
Minimum free energy
-31.40 kcal/mol
Thermodynamic ensemble
Free energy: -32.01 kcal/mol
Frequency: 0.3726
Diversity: 3.70
MFE Structure Visualization
Structure Prediction
MFE Structure Prediction
.((((((((.((((((((((.(((..((((((((.......))))))))..))).)))))))))).))))))))...
Thermodynamic Ensemble Prediction
.((((((((.((((((((((.(((..((((((((,......))))))))..))).)))))))))).))))))))...
Forensic Context

A study in humans demonstrated that circulating hsa-miR-208b is significantly upregulated in the plasma of male acute myocardial infarction (MI) patients compared to healthy controls, with next-generation sequencing and RT-qPCR validation showing a fold change of 5.3 and an area under the curve of 0.80 for diagnostic accuracy [Baulina et al. DOI:10.1016/j.yjmcc.2018.07.129]. This miRNA is recognized as a cardiomyocyte-specific and established diagnostic/prognostic biomarker for MI, with its increased levels validated in an independent patient cohort [Tong et al. DOI:10.3390/ijms19051467]. A study in humans demonstrated that plasma extracellular vesicles containing the mir-208b were significantly upregulated in acute coronary syndrome patients experiencing sudden cardiac death compared to healthy controls, showing a positive correlation with myoglobin and an area under the curve of 0.7756 for prediction [Huang et al. DOI:10.1039/D2MO00257D].