Bibliographic Details
| Title: |
Variant of the catalytic cysteine of UFSP2 leads to spondyloepimetaphyseal dysplasia type Di Rocco |
| Authors: |
Larissa Mattern, Matthias Begemann, Heide Delbrück, Petra Holschbach, Silvia Schröder, Sabine M. Schacht, Ingo Kurth, Miriam Elbracht |
| Source: |
Bone Reports, Vol 18, Iss , Pp 101683- (2023) |
| Publisher Information: |
Elsevier, 2023. |
| Publication Year: |
2023 |
| Collection: |
LCC:Diseases of the musculoskeletal system |
| Subject Terms: |
UFSP2, Skeletal dysplasia, Spondyloepimetaphyseal dysplasia, UFM1, Beukes hip dysplasia, Diseases of the musculoskeletal system, RC925-935 |
| More Details: |
Spondyloepimetaphyseal dysplasia (SEMD) is characterized by vertebral, epiphyseal, and metaphyseal alterations. Patients become predominantly apparent with disproportionate short stature. The genetic background of SEMD is heterogeneous, with different modes of inheritance (autosomal dominant, autosomal recessive, and X-linked disorders). Amongst the genes in which variants are known to cause SEMD, UFM1-specific protease 2 (UFSP2) encodes a cysteine protease involved in the maturation of Ubiquitin-fold modifier 1 (UFM1). Heterozygous pathogenic variants affecting the C-terminal catalytic domain of UFSP2 are related to two entities of skeletal dysplasia, Beukes hip dysplasia (BHD) and SEMD type Di Rocco (SEMDDR). This is the first report of a de novo heterozygous variant affecting the catalytic Cys302 residue of UFSP2 (NM_018359.3:c.905G>C, p.(Cys302Ser)) causing SEMDDR. According to previously described patients with SEMDDR, our patient presented with disproportionate short stature, genu varum, gait instability, and radiologically detected epiphyseal and metaphyseal alterations. Additionally, a bell-shaped thorax, lumbar hyperlordosis, muscular hypotonia, and coxa vara were observed in the patient described in this study. Our findings underline the fundamental importance of an intact catalytic triad of the human UFSP2 for normal skeletal development and extend the phenotypical features of patients with UFSP2-related skeletal dysplasia. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2352-1872 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2352187223000311; https://doaj.org/toc/2352-1872 |
| DOI: |
10.1016/j.bonr.2023.101683 |
| Access URL: |
https://doaj.org/article/1f2638d3e42e4ef89645709085843ec7 |
| Accession Number: |
edsdoj.1f2638d3e42e4ef89645709085843ec7 |
| Database: |
Directory of Open Access Journals |
