Li-Fraumeni syndrome 2

A Li-Fraumeni syndrome that has_material_basis_in heterozygous mutation in the CHEK2 gene on chromosome 22q12.1.

Li-Fraumeni syndrome 1

A Li-Fraumeni syndrome that has_material_basis_in heterozygous mutation in the TP53 gene on chromosome 17p13.1.

Bryant-Li-Bhoj neurodevelopmental syndrome 1

A Bryant-Li-Bhoj neurodevelopmental syndrome that is characterized predominantly by moderate to severe global developmental delay with impaired intellectual development, poor or absent speech, and delayed motor milestones and that has_material_basis_in heterozygous mutation in the H3F3A gene on chromosome 1q42.

Bryant-Li-Bhoj neurodevelopmental syndrome 2

A Bryant-Li-Bhoj neurodevelopmental syndrome that is characterized predominantly by moderate to severe global developmental delay with impaired intellectual development, poor or absent speech, and delayed motor milestones nd that has_material_basis_in heterozygous mutation in the H3F3B gene on chromosome 17q25.

DNA ligase IV deficiency

A combined T cell and B cell immunodeficiency that has_material_basis_in a mutation in the LIG4 gene, a DNA ligase, encoding a protein essential for V(D)J recombination and DNA double-strand break (DSB) repair through nonhomologous end joining (NHEJ). Patients present with immunodeficiency and developmental and growth delay.