Anti-WBSCR20 antibodies are used in antigen-specific immunodetection in biological samples. The target WBSCR20 is a known alias name of the protein NOP2/Sun RNA methyltransferase 5, encoded by the NSUN5 gene in humans. This 429-amino acid residue protein is reported to be a S-adenosyl-L-methionine-dependent methyltransferase that specifically methylates the C(5) position of cytosine 3782 (m5C3782) in 28S rRNA. It is localized to the nucleus of the cell. In terms of tissue expression, it is ubiquitously expressed across many tissue types.