SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|ARBA:ARBA00004236}. Cell projection, axon {ECO:0000256|ARBA:ARBA00004489}. Cell projection, dendrite {ECO:0000256|ARBA:ARBA00004279}. Cell projection, dendritic spine {ECO:0000256|ARBA:ARBA00004552}. Cell projection, filopodium tip {ECO:0000256|ARBA:ARBA00004495}. Cell projection, growth cone {ECO:0000256|ARBA:ARBA00004624}. Cell projection, neuron projection {ECO:0000256|ARBA:ARBA00004487}. Chromosome, centromere {ECO:0000256|ARBA:ARBA00004584}. Cytoplasm, Cytoplasmic ribonucleoprotein granule {ECO:0000256|ARBA:ARBA00004331}. Cytoplasm, Stress granule {ECO:0000256|ARBA:ARBA00004210}. Cytoplasm, perinuclear region {ECO:0000256|ARBA:ARBA00004556}. Membrane {ECO:0000256|ARBA:ARBA00004370}. Nucleus, nucleolus {ECO:0000256|ARBA:ARBA00004604}. Perikaryon {ECO:0000256|ARBA:ARBA00004484}. Presynaptic cell membrane {ECO:0000256|ARBA:ARBA00034111}. Synapse, synaptosome {ECO:0000256|ARBA:ARBA00034102}. Synaptic cell membrane {ECO:0000256|ARBA:ARBA00034109}. SIMILARITY: Belongs to the FMR1 family. {ECO:0000256|ARBA:ARBA00006633}. |