Fragile X mental retardation-related protein 1 (FXR1) and FXR2 are members of the FMR1 family sharing a very high degree of protein similarity among them. They interact with each other and also with FMR1, moving between the cytoplasm and the nucleus. FXR1 is an RNA binding protein and is expressed in the heart, kidney, brain, and testis. Mutations in FMR1 result in the most common form of mental retardation.
FXR1; fragile X mental retardation, autosomal homolog 1; fragile X mental retardation syndrome-related protein 1; hFXR1p; FXR1P; fragile X mental retardation-related protein 1; zgc:66226; wu:fb16f11; wu:fd18c10