DIRAS1 belongs to a distinct branch of the functionally diverse Ras superfamily of monomeric GTPases. DIRAS1 belongs to a distinct branch of the functionally diverse Ras (see HRAS; MIM 190020) superfamily of monomeric GTPases.[supplied by OMIM]. Sequence Note: removed 1 base from the 5' end that did not align to the reference genome assembly. PRIMARYREFSEQ_SPAN PRIMARY_IDENTIFIER PRIMARY_SPAN COMP 1-3390 BC030660.1 2-3391