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Microcephaly with or without chorioretinopathy, lymphoedema, or mental retardation (MCLMR): review of phenotype associated with KIF11 mutations

Jones, GE; Ostergaard, P; Moore, AT; Connell, FC; Williams, D; Quarrell, O; Brady, AF; Spier, I; Hazan, F; Moldovan, O; et al. Jones, GE; Ostergaard, P; Moore, AT; Connell, FC; Williams, D; Quarrell, O; Brady, AF; Spier, I; Hazan, F; Moldovan, O; Wieczorek, D; Mikat, B; Petit, F; Coubes, C; Saul, RA; Brice, G; Gordon, K; Jeffery, S; Mortimer, PS; Vasudevan, PC; Mansour, S (2014) Microcephaly with or without chorioretinopathy, lymphoedema, or mental retardation (MCLMR): review of phenotype associated with KIF11 mutations. EUROPEAN JOURNAL OF HUMAN GENETICS, 22 (7). 881 - 887. ISSN 1018-4813 https://doi.org/10.1038/ejhg.2013.263
SGUL Authors: Jeffery, Stephen Mortimer, Peter Sydney Ostergaard, Pia Mansour, Sahar

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Abstract

Microcephaly with or without chorioretinopathy, lymphoedema, or mental retardation (MCLMR) (MIM No.152950) is a rare autosomal dominant condition for which a causative gene has recently been identified. Mutations in the kinesin family member 11 (KIF11) gene have now been described in 16 families worldwide. This is a review of the condition based on the clinical features of 37 individuals from 22 families. This report includes nine previously unreported families and additional information for some of those reported previously. The condition arose de novo in 8/20 families (40%). The parental results were not available for two probands. The mutations were varied and include missense, nonsense, frameshift, and splice site and are distributed evenly throughout the KIF11 gene. In our cohort, 86% had microcephaly, 78% had an ocular abnormality consistent with the diagnosis, 46% had lymphoedema, 73% had mild-moderate learning difficulties, 8% had epilepsy, and 8% had a cardiac anomaly. We identified three individuals with KIF11 mutations but no clinical features of MCLMR demonstrating reduced penetrance. The variable expression of the phenotype and the presence of mildly affected individuals indicates that the prevalence may be higher than expected, and we would therefore recommend a low threshold for genetic testing.

Item Type: Article
Additional Information: Full text made available here with permission of publisher, for academic research purposes only. Re-use must not be for Commercial Purposes.
Keywords: Science & Technology, Life Sciences & Biomedicine, Biochemistry & Molecular Biology, Genetics & Heredity, BIOCHEMISTRY & MOLECULAR BIOLOGY, GENETICS & HEREDITY, microcephaly, chorioretinal dysplasia, lymphoedema, KIF11, MCLMR, OF-THE-LITERATURE, RETINAL FOLDS, DYSPLASIA, FAMILY, Genetics & Heredity, 0604 Genetics
SGUL Research Institute / Research Centre: Academic Structure > Molecular and Clinical Sciences Research Institute (MCS)
Academic Structure > Molecular and Clinical Sciences Research Institute (MCS) > Cell Sciences (INCCCS)
Journal or Publication Title: EUROPEAN JOURNAL OF HUMAN GENETICS
ISSN: 1018-4813
Related URLs:
Dates:
DateEvent
1 July 2014Published
Web of Science ID: WOS:000338342700009
URI: https://openaccess.sgul.ac.uk/id/eprint/107129
Publisher's version: https://doi.org/10.1038/ejhg.2013.263

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