Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics
Por um escritor misterioso
Last updated 05 julho 2024
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://media.springernature.com/m685/springer-static/image/art%3A10.1186%2F1471-2350-7-77/MediaObjects/12881_2006_Article_185_Fig1_HTML.jpg)
Background Rubinstein-Taybi Syndrome (RSTS, MIM 180849) is a rare congenital disorder characterized by mental and growth retardation, broad and duplicated distal phalanges of thumbs and halluces, facial dysmorphisms and increased risk of tumors. RSTS is caused by chromosomal rearrangements and point mutations in one copy of the CREB-binding protein gene (CREBBP or CBP) in 16p13.3. To date mutations in CREBBP have been reported in 56.6% of RSTS patients and an average figure of 10% has ascribed to deletions. Methods Our study is based on the mutation analysis of CREBBP in 31 Italian RSTS patients using segregation analysis of intragenic microsatellites, BAC FISH and direct sequencing of PCR and RT-PCR fragments. Results We identified a total of five deletions, two of the entire gene and three, all in a mosaic condition, involving either the 5' or the 3' region. By direct sequencing a total of 14 de novo mutations were identified: 10 truncating (5 frameshift and 5 nonsense), one splice site, and three novel missense mutations. Two of the latter affect the HAT domain, while one maps within the conserved nuclear receptor binding of (aa 1–170) and will probably destroy a Nuclear Localization Signal. Identification of the p.Asn1978Ser in the healthy mother of a patient also carrying a de novo frameshift mutation, questions the pathogenetic significance of the missense change reported as recurrent mutation. Thirteen additional polymorphisms, three as of yet unreported, were also detected. Conclusion A high detection rate (61.3%) of mutations is confirmed by this Italian study which also attests one of the highest microdeletion rate (16%) documented so far.
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://0.academia-photos.com/attachment_thumbnails/46869455/mini_magick20190208-18020-bpynuj.png?1549658917)
PDF) Rubinstein–Taybi syndrome (CREBBP, EP300) Martine van Belzen and Oliver Bartsch
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://d3i71xaburhd42.cloudfront.net/26976dbcb3a1a8df1afb05d250396a5769b39477/2-Figure3-1.png)
PDF] Rubinstein-Taybi Syndrome: A Female Patient with a De Novo Reciprocal Translocation T(2; 16)(Q36.3; P13.3) and Dysgranulopoiesis
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://ars.els-cdn.com/content/image/1-s2.0-S0888754307001838-gr2.jpg)
High frequency of mosaic CREBBP deletions in Rubinstein–Taybi syndrome patients and mapping of somatic and germ-line breakpoints - ScienceDirect
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://0.academia-photos.com/attachment_thumbnails/44450372/mini_magick20190214-26026-1o36a09.png?1550180218)
PDF) Rubinstein-Taybi syndrome medical guidelines
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://i1.rgstatic.net/publication/282422382_Identification_of_a_novel_de_novo_mutation_of_CREBBP_in_a_patient_with_Rubinstein-Taybi_syndrome_by_targeted_next-generation_sequencing_A_case_report/links/5e98ae28a6fdcca7891ff3c5/largepreview.png)
PDF) Identification of a novel de novo mutation of CREBBP in a patient with Rubinstein-Taybi syndrome by targeted next-generation sequencing: A case report
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://i1.rgstatic.net/publication/282791147_CREBBP_and_EP300_mutational_spectrum_and_clinical_presentations_in_a_cohort_of_Swedish_patients_with_Rubinstein-Taybi_syndrome/links/581fe0cd08aea429b2991752/largepreview.png)
PDF) CREBBP and EP300 mutational spectrum and clinical presentations in a cohort of Swedish patients with Rubinstein–Taybi syndrome
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://d3i71xaburhd42.cloudfront.net/26976dbcb3a1a8df1afb05d250396a5769b39477/1-Table1-1.png)
PDF] Rubinstein-Taybi Syndrome: A Female Patient with a De Novo Reciprocal Translocation T(2; 16)(Q36.3; P13.3) and Dysgranulopoiesis
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://media.springernature.com/m685/springer-static/image/art%3A10.1186%2F1471-2350-7-77/MediaObjects/12881_2006_Article_185_Fig3_HTML.jpg)
Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fejhg.2016.14/MediaObjects/41431_2016_Article_BFejhg201614_Fig1_HTML.jpg)
Mosaic CREBBP mutation causes overlapping clinical features of Rubinstein– Taybi and Filippi syndromes
![Rubinstein-Taybi Syndrome: spectrum of CREBBP mutations in Italian patients, BMC Medical Genetics](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary-alt:20160627193219-61475-mediumThumb-S1462399407000415_tab1.jpg?pub-status=live)
Rubinstein–Taybi syndrome: clinical and molecular overview, Expert Reviews in Molecular Medicine
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