Vincenzo Salpietro, Reza Maroofian, Maha S Zaki, Jamie Wangen, Andrea Ciolfi, Sabina Barresi, Stephanie Efthymiou, Angelique Lamaze, Gabriel N Aughey, Fuad Al Mutairi, Aboulfazl Rad, Clarissa Rocca, Elisa Calì, Andrea Accogli, Federico Zara, Pasquale Striano, Majid Mojarrad, Huma Tariq, Edoardo Giacopuzzi, Jenny C Taylor, Gabriela Oprea, Volha Skrahina, Khalil Ur Rehman, Marwa Abd Elmaksoud, Mahmoud Bassiony, Huda G El Said, Mohamed S Abdel-Hamid, Maha Al Shalan, Gohun Seo, Sohyun Kim, Hane Lee, Rin Khang, Mahmoud Y Issa, Hasnaa M Elbendary, Karima Rafat, Nikolaos M Marinakis, Joanne Traeger-Synodinos, Athina Ververi, Mara Sourmpi, Atieh Eslahi, Farhad Khadivi Zand, Mehran Beiraghi Toosi, Meisam Babaei, Adam Jackson, Aida Bertoli-Avella, Alistair T Pagnamenta, Marcello Niceta, Roberta Battini, Antonio Corsello, Chiara Leoni, Francesco Chiarelli, Bruno Dallapiccola, Eissa Ali Faqeih, Krishnaraya K Tallur, Majid Alfadhel, Eman Alobeid, Sateesh Maddirevula, Kshitij Mankad, Siddharth Banka, Ehsan Ghayoor-Karimiani, Marco Tartaglia, Wendy K Chung, Rachel Green, Fowzan S Alkuraya, James E C Jepson, Henry Houlden
The homologous genes GTPBP1 and GTPBP2 encode GTP-binding proteins 1 and 2, which are involved in ribosomal homeostasis. Pathogenic variants in GTPBP2 were recently shown to be an ultra-rare cause of neurodegenerative or neurodevelopmental disorders (NDDs). Until now, no human phenotype has been linked to GTPBP1. Here, we describe individuals carrying bi-allelic GTPBP1 variants that display an identical phenotype with GTPBP2 and characterize the overall spectrum of GTP-binding protein (1/2)-related disorders...
December 19, 2023: American Journal of Human Genetics