Fluck, CE;
Maret, A;
Mallet, D;
Portrat-Doyen, S;
Achermann, JC;
Leheup, B;
Theintz, GE;
... Morel, Y; + view all
(2005)
A novel mutation L260P of the steroidogenic acute regulatory protein gene in three unrelated patients of swiss ancestry with congenital lipoid adrenal hyperplasia.
The Journal of Clinical Endocrinology & Metabolism
, 90
(9)
5304 - 5308.
10.1210/jc.2005-0874.
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Abstract
Context: Lipoid congenital adrenal hyperplasia (CAH) is the most severe form of CAH leading to impaired production of all adrenal and gonadal steroids. Mutations in the gene encoding steroidogenic acute regulatory protein ( StAR) cause lipoid CAH.Objective: We investigated three unrelated patients of Swiss ancestry who all carried novel mutations in the StAR gene. All three subjects were phenotypic females with absent Mullerian derivatives, 46, XY karyotype, and presented with adrenal failure.Methods and Results: StAR gene analysis showed that one patient was homozygous and the other two were heterozygous for the novel missense mutation L260P. Of the heterozygote patients, one carried the novel missense mutation L157P and one had a novel frameshift mutation (629-630delCT) on the second allele. The functional ability of all three StAR mutations to promote pregnenolone production was severely attenuated in COS-1 cells transfected with the cholesterol side-chain cleavage system and mutant vs. wild-type StAR expression vectors.Conclusions: These cases highlight the importance of StAR-dependent steroidogenesis during fetal development and early infancy; expand the geographic distribution of this condition; and finally establish a new, prevalent StAR mutation (L260P) for the Swiss population.
| Type: | Article |
|---|---|
| Title: | A novel mutation L260P of the steroidogenic acute regulatory protein gene in three unrelated patients of swiss ancestry with congenital lipoid adrenal hyperplasia |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1210/jc.2005-0874 |
| Publisher version: | http://dx.doi.org/10.1210/jc.2005-0874 |
| Language: | English |
| Additional information: | © 2005 by The Endocrine Society This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/us/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | STAR, TRANSPORT, MECHANISM |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Genetics and Genomic Medicine Dept |
| URI: | https://discovery.ucl.ac.uk/id/eprint/105307 |
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