Basic Information

Symbol
piR-hsa-21000
RNA class
piRNA
Alias
hsa-piR-20792 DQ590704.1 hsa_piRNA_4255 hsa_piR_015150 piR-57816 URS00003BC008 PIR51815
Location (GRCh38)
19:23797356-23797384
UCSC Genome Browser Search in Marker Scope
Forensic tag(s)
Tissue/body fluid identification
External database
piRBase piRNAdb RNAcentral

Sequence & Structure

Transcript
piR-hsa-21000
Sequence length
29 nt
GC content
0.5862

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
-7.00 kcal/mol
Thermodynamic ensemble
Free energy: -7.95 kcal/mol
Frequency: 0.2124
Diversity: 3.33
MFE Structure Visualization
Structure Prediction
MFE Structure Prediction
.((..((((((....)))))).)).....
Thermodynamic Ensemble Prediction
.(,..(((((,....}))))).,,.....
Forensic Context

A study in humans demonstrated that the expression profiles of the piR-hsa-21000 collectively exhibited acceptable discriminating ability for most forensically relevant biological samples, including venous blood, menstrual blood, saliva, semen, vaginal secretions, and skin [Wang et al. DOI:10.1016/j.fsigen.2019.07.015]. A study in humans identified the piR-hsa-21000 as an absolute specific marker for semen, demonstrating high specificity in pairwise comparisons and moderate expression levels [Liu et al. DOI:10.3390/genes13091530].