Required for the assembly of mature ribosomes and ribosome biogenesis. Together with EFL1, triggers the GTP-dependent release of EIF6 from 60S pre-ribosomes in the cytoplasm, thereby activating ribosomes for translation competence by allowing 80S ribosome assembly and facilitating EIF6 recycling to the nucleus, where it is required for 60S rRNA processing and nuclear export. Required for normal levels of protein synthesis. May play a role in cellular stress resistance. May play a role in cellula

CytoplasmNucleus, nucleolusNucleus, nucleoplasmCytoplasm, cytoskeleton, spindle

Shwachman-Diamond syndrome 1

A form of Shwachman-Diamond syndrome, a disorder characterized by hematopoietic abnormalities, exocrine pancreatic dysfunction, and skeletal dysplasia. Intermittent or chronic neutropenia is the most common hematological manifestation, followed by anemia and thrombocytopenia. Some patients progress to bone marrow failure, myelodysplastic syndrome and malignant transformation, with acute myelogenous leukemia being the most common. Exocrine pancreatic dysfunction is generally the first presenting symptom in infancy. Short stature and metaphyseal dysplasia are the most frequent skeletal manifestations. SDS1 inheritance is autosomal recessive.