他名称NOL1/NOP2/Sun domain family, member 5B; NOP2/Sun RNA methyltransferase family member 5 pseudogene 1; NOP2/Sun domain family, member 5 pseudogene 1; NOP2/Sun domain family, member 5B, pseudogene; Williams Beuren syndrome chromosome region 20B; Williams-Beuren Syndrome critical region protein 20 copy B