AUTHOR=Andrade Catarina , Cordeiro Ana Isabel , Pinto Marta Valente , Neves Conceição , Martins Catarina , Villartay Jean-Pierre , Neves João Farela TITLE=Case Report: Hypomorphic Ligase 4 deficiency – a paradigm of immunodysregulation JOURNAL=Frontiers in Immunology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2025.1545630 DOI=10.3389/fimmu.2025.1545630 ISSN=1664-3224