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genes encoding protein containing the SPR domain include: SPRED1, SPRED2, SPRED3, SPRY1, SPRY2, SPRY3, SPRY4 Zhang S, Lin Y, Itäranta P, Yagi A, Vainio S
1 Patients without Neurofibromin 1 or SPRED1 mutations may have SPRED2, SPRED3 or SPRY1, SPRY2, SPRY3 or SPRY4 mutations. GRCh38: Ensembl release 89: ENSG00000166068