Bone Marrow Failure Syndrome 3, also known as bmfs3, is related to inherited bone marrow failure syndromes. An important gene associated with Bone Marrow Failure Syndrome 3 is DNAJC21 (DnaJ Heat Shock Protein Family (Hsp40) Member C21). Affiliated tissues include bone marrow and bone, and related phenotypes are hypodontia and hearing impairment