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Angius A, Uva P, Oppo M, Persico I, Onano S, Olla S, Pes V, Perria C, Cuccuru G, Atzeni R, Serra G, Cucca F, Sotgiu S, Hennekam RC, Crisponi L. Confirmation of a new phenotype in an individual with a variant in the last part of exon 30 of CREBBP. Am J Med Genet A 2019; 179:634-638. [PMID: 30737887 DOI: 10.1002/ajmg.a.61052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/28/2018] [Accepted: 01/01/2019] [Indexed: 11/10/2022]
Abstract
We report here a novel de novo missense variant affecting the last amino acid of exon 30 of CREBBP [NM_004380, c.5170G>A; p.(Glu1724Lys)] in a 17-year-old boy presenting mild intellectual disability and dysmorphisms but not resembling the phenotype of classical Rubinstein-Taybi syndrome. The patient showed a marked overweight from early infancy on and had cortical heterotopias. Recently, 22 individuals have been reported with missense mutations in the last part of exon 30 and the beginning of exon 31 of CREBBP, showing this new phenotype. This additional case further delineates the genotype-phenotype correlations within the molecular and phenotypic spectrum of variants in CREBBP and EP300.
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Affiliation(s)
- Andrea Angius
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato (CA), Italy
| | - Paolo Uva
- Centre for Advanced Studies, Research and Development in Sardinia (CRS4), Science and Technology Park Polaris, Pula (CA), Italy
| | - Manuela Oppo
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato (CA), Italy.,Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, Sassari, Italy
| | - Ivana Persico
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato (CA), Italy
| | - Stefano Onano
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato (CA), Italy.,Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, Sassari, Italy
| | - Stefania Olla
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato (CA), Italy
| | - Valentina Pes
- Clinica di Neuropsichiatria Infantile, Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, Università degli Studi di Sassari, Sassari, Italy
| | - Chiara Perria
- Clinica di Neuropsichiatria Infantile, Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, Università degli Studi di Sassari, Sassari, Italy
| | - Gianmauro Cuccuru
- Centre for Advanced Studies, Research and Development in Sardinia (CRS4), Science and Technology Park Polaris, Pula (CA), Italy
| | - Rossano Atzeni
- Centre for Advanced Studies, Research and Development in Sardinia (CRS4), Science and Technology Park Polaris, Pula (CA), Italy
| | - Gigliola Serra
- Clinica di Neuropsichiatria Infantile, Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, Università degli Studi di Sassari, Sassari, Italy
| | - Francesco Cucca
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato (CA), Italy.,Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, Sassari, Italy
| | - Stefano Sotgiu
- Clinica di Neuropsichiatria Infantile, Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, Università degli Studi di Sassari, Sassari, Italy
| | - Raoul C Hennekam
- Department of Pediatrics, Amsterdam UMC location AMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Laura Crisponi
- Istituto di Ricerca Genetica e Biomedica, Consiglio Nazionale delle Ricerche (CNR), Monserrato (CA), Italy.,Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, Sassari, Italy
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Menke LA, van Belzen MJ, Alders M, Cristofoli F, Ehmke N, Fergelot P, Foster A, Gerkes EH, Hoffer MJV, Horn D, Kant SG, Lacombe D, Leon E, Maas SM, Melis D, Muto V, Park SM, Peeters H, Peters DJM, Pfundt R, van Ravenswaaij-Arts CMA, Tartaglia M, Hennekam RCM. CREBBP mutations in individuals without Rubinstein-Taybi syndrome phenotype. Am J Med Genet A 2016; 170:2681-93. [PMID: 27311832 DOI: 10.1002/ajmg.a.37800] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 05/31/2016] [Indexed: 11/08/2022]
Abstract
Mutations in CREBBP cause Rubinstein-Taybi syndrome. By using exome sequencing, and by using Sanger in one patient, CREBBP mutations were detected in 11 patients who did not, or only in a very limited manner, resemble Rubinstein-Taybi syndrome. The combined facial signs typical for Rubinstein-Taybi syndrome were absent, none had broad thumbs, and three had only somewhat broad halluces. All had apparent developmental delay (being the reason for molecular analysis); five had short stature and seven had microcephaly. The facial characteristics were variable; main characteristics were short palpebral fissures, telecanthi, depressed nasal ridge, short nose, anteverted nares, short columella, and long philtrum. Six patients had autistic behavior, and two had self-injurious behavior. Other symptoms were recurrent upper airway infections (n = 5), feeding problems (n = 7) and impaired hearing (n = 7). Major malformations occurred infrequently. All patients had a de novo missense mutation in the last part of exon 30 or beginning of exon 31 of CREBBP, between base pairs 5,128 and 5,614 (codons 1,710 and 1,872). No missense or truncating mutations in this region have been described to be associated with the classical Rubinstein-Taybi syndrome phenotype. No functional studies have (yet) been performed, but we hypothesize that the mutations disturb protein-protein interactions by altering zinc finger function. We conclude that patients with missense mutations in this specific CREBBP region show a phenotype that differs substantially from that in patients with Rubinstein-Taybi syndrome, and may prove to constitute one (or more) separate entities. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Leonie A Menke
- Department of Pediatrics, Academic Medical Center, Amsterdam, The Netherlands
| | - Martine J van Belzen
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Marielle Alders
- Department of Clinical Genetics, Academic Medical Center, Amsterdam, The Netherlands
| | - Francesca Cristofoli
- Center for Human Genetics, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | | | - Nadja Ehmke
- Institute of Medical and Human Genetics, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Patricia Fergelot
- Department of Genetics, and INSERM U1211, University Hospital of Bordeaux, Bordeaux, France
| | - Alison Foster
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom.,Clinical Genetics Unit, University of Birmingham, Birmingham, United Kingdom
| | - Erica H Gerkes
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Mariëtte J V Hoffer
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Denise Horn
- Institute of Medical and Human Genetics, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Sarina G Kant
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Didier Lacombe
- Department of Genetics, and INSERM U1211, University Hospital of Bordeaux, Bordeaux, France
| | - Eyby Leon
- Division of Genetics and Metabolism, Children's National Health System, Washington, District of Columbia
| | - Saskia M Maas
- Department of Pediatrics, Academic Medical Center, Amsterdam, The Netherlands.,Department of Clinical Genetics, Academic Medical Center, Amsterdam, The Netherlands
| | - Daniela Melis
- Department of Translational Medical Science, Federico II University, Naples, Italy
| | - Valentina Muto
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Soo-Mi Park
- Department of Clinical Genetics, Cambridge University Hospitals, Cambridge, United Kingdom
| | - Hilde Peeters
- Center for Human Genetics, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Dorien J M Peters
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Rolph Pfundt
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Raoul C M Hennekam
- Department of Pediatrics, Academic Medical Center, Amsterdam, The Netherlands.
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