PMID- 10612838 OWN - NLM STAT- MEDLINE DCOM- 20000120 LR - 20181130 IS - 1098-1004 (Electronic) IS - 1059-7794 (Linking) VI - 15 IP - 1 DP - 2000 Jan TI - Identification of nine novel mutations in the Bruton's tyrosine kinase gene in X-linked agammaglobulinaemia patients. PG - 117 AB - Mutations in the Bruton's tyrosine kinase (BTK ) gene are responsible for X-linked Agammaglobulinemia (XLA), an immunodeficiency caused by a block in B cell differentiation. Non Isotopic RNAse Cleavage Assay (NIRCA), followed by sequencing was used to screen for BTK mutations in 11 Italian XLA patients. Nine novel mutations were identified: 6 missense (Y39S, L512P, L512Q, R544G, S578Y, E589K), one non-sense (Q260X), one frameshift (1599-1602del GCGC) and one in-frame insertion (2037-2038insTTTTAG), that represents the first case of premature stop codon introduction in the BTK coding frame. These data support the high molecular heterogeneity of BTK gene in XLA disease and provide new insight to the diagnosis and to the role of BTK domain in XLA and in B cell signal transduction and development. Hum Mutat 15:117, 2000. CI - Copyright 2000 Wiley-Liss, Inc. FAU - Orlandi, P AU - Orlandi P AD - Dept. of Pediatrics, Division of Immunology and Infectious Diseases, Children's Hospital "Bambino Gesu", University of Rome Tor Vergata, Rome, Italy. Paros@Med.UniRoma2.it FAU - Ritis, K AU - Ritis K FAU - Moschese, V AU - Moschese V FAU - Angelini, F AU - Angelini F FAU - Arvanitidis, K AU - Arvanitidis K FAU - Speletas, M AU - Speletas M FAU - Sideras, P AU - Sideras P FAU - Plebani, A AU - Plebani A FAU - Rossi, P AU - Rossi P LA - eng PT - Journal Article PL - United States TA - Hum Mutat JT - Human mutation JID - 9215429 RN - EC 2.7.10.1 (Protein-Tyrosine Kinases) RN - EC 2.7.10.2 (Agammaglobulinaemia Tyrosine Kinase) RN - EC 2.7.10.2 (BTK protein, human) SB - IM MH - Agammaglobulinaemia Tyrosine Kinase MH - Agammaglobulinemia/*genetics MH - Child MH - Child, Preschool MH - Genetic Linkage MH - Humans MH - Infant MH - Italy MH - Mutation MH - Protein-Tyrosine Kinases/*genetics MH - *X Chromosome EDAT- 1999/12/29 00:00 MHDA- 1999/12/29 00:01 CRDT- 1999/12/29 00:00 PHST- 1999/12/29 00:00 [pubmed] PHST- 1999/12/29 00:01 [medline] PHST- 1999/12/29 00:00 [entrez] AID - 10.1002/(SICI)1098-1004(200001)15:1<117::AID-HUMU26>3.0.CO;2-H [pii] AID - 10.1002/(SICI)1098-1004(200001)15:1<117::AID-HUMU26>3.0.CO;2-H [doi] PST - ppublish SO - Hum Mutat. 2000 Jan;15(1):117. doi: 10.1002/(SICI)1098-1004(200001)15:1<117::AID-HUMU26>3.0.CO;2-H.