Searchable abstracts of presentations at key conferences in endocrinology

ea0094oc1.2 | Bone and Calcium | SFEBES2023

A large in-frame deletion of the calcium-sensing receptor extracellular domain causes familial hypocalciuric hypercalcaemia type 1 (FHH1) and is partially responsive to cinacalcet

Kooblall Kreepa , Hannan Fadil , van Waes Charlotte , Stevenson Mark , Lines Kate , Evans David , Moorwood Catherine , Owens Martina , Tuthill Antoinette , Thakker Rajesh

Familial hypocalciuric hypercalcaemia type 1 (FHH1) is mainly caused by loss-of-function missense mutations of the extracellular calcium-sensing receptor (CaSR), which is a parathyroid- and kidney-expressed G-protein coupled receptor that plays a pivotal role in mineral metabolism. Here, we report the unusual occurrence of a novel heterozygous in-frame CASR exon 4 deletion, c.(492+1_493-1)_(1377+1_1378-1)del, in a family with FHH1. This mutation is predicted...