A mutation in the EEF1D gene was found in a patient with a severe intellectual disability, microcephaly, and a short stature (Reuter et al., 2017); the mutation was a deletion in cDNA 69 that caused an amino acid change, Glu24 to Ser, followed by a translational stop codon 26 amino acids further due to the frame shift. This evidence concerns the gene EEF1D and microcephaly.