Listed are ELISA Kits for the detection of WBSCR20, an alias name of NOP2/Sun RNA methyltransferase 5. The human protein, encoded by the gene NSUN5, is 429 amino acid residues long and has a mass of 46,692 daltons. However, there are up to 5 reported isoforms. It is an enzyme of the transferase (broad) class and is a member of the Class I-like SAM-binding methyltransferase superfamily, RsmB/NOP family. The gene is associated with Williams-Beuren syndrome (WBS). This target may also be known as: NOL1-related protein, NOL1/NOP2/Sun domain family member 5, NOP2/Sun RNA methyltransferase family member 5, NOP2/Sun domain family member 5A, and Williams Beuren syndrome chromosome region 20A.