Basic Information

Symbol
piR-hsa-20757
RNA class
piRNA
Alias
hsa-piR-20636 DQ590548.1 hsa_piRNA_4411 hsa_piR_015026 piR-57660 URS000015B1A9 PIR51659
Location (GRCh38)
1:16545976-16546010
UCSC Genome Browser Search in Marker Scope
Forensic tag(s)
Tissue/body fluid identification
External database
piRBase piRNAdb RNAcentral

Sequence & Structure

Transcript
piR-hsa-20757
Sequence length
27 nt
GC content
0.5185

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
-2.20 kcal/mol
Thermodynamic ensemble
Free energy: -3.23 kcal/mol
Frequency: 0.1888
Diversity: 5.92
MFE Structure Visualization
Structure Prediction
MFE Structure Prediction
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Thermodynamic Ensemble Prediction
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Forensic Context

A study in humans characterized piwi-interacting RNA (piRNA) expression in six forensically relevant biological fluids and stains (venous blood, menstrual blood, saliva, semen, vaginal secretions, and skin) using massively parallel sequencing [Wang et al. DOI:10.1016/j.fsigen.2019.07.015]. A study in humans identified the piR-hsa-20757 as an absolute specific marker for vaginal secretion, demonstrating high specificity with level IV specificity in two out of five and level III in three out of five pairwise comparisons and moderate expression [Liu et al. DOI:10.3390/genes13091530].