ISSN 1662-4009 (online)

ey0018.5-11 | Translational highlights | ESPEYB18

5.11. Crtap and p3h1 knock out zebrafish support defective collagen chaperoning as the cause of their osteogenesis imperfecta phenotype

Tonelli F , Cotti S , Leoni L , Besio R , Gioia R , Marchese L , Giorgetti S , Villani S , Gistelinck C , Wagener R , Kobbe B , Fiedler I A K , Larionova D , Busse B , Eyre D , Rossi A , Witten P E , Forlino A

Matrix Biol. 2020 Aug;90:40–60 Abstract: https://pubmed.ncbi.nlm.nih.gov/32173581/In brief: Mutations in 3-hydroxylation complex genes CRTAP and P3H1 cause osteogenesis imperfecta type VII and VIII, respectively. However, the pathogenic mechanism by which these mutations cause disease remains unclear. This study points to a defective chaperone role of the 3-h...

ey0015.5-4 | New genes and gene mutations | ESPEYB15

5.4 Mutations That Alter the Carboxy-Terminal-Propeptide Cleavage Site of the Chains of Type I Procollagen Are Associated With a Unique Osteogenesis Imperfecta Phenotype

T Cundy , M Dray , J Delahunt , JD Hald , B Langdahl , C Li , M Szybowska , S Mohammed , EL Duncan , AM McInerney-Leo , PG Wheeler , P Roschger , K Klaushofer , J Rai , M Weis , D Eyre , U Schwarze , PH Byers

To read the full abstract: J Bone Miner Res 2018;33(7):1260-1271Osteogenesis imperfecta (OI) is characterized by early-onset skeletal fragility, often short stature, blue sclerae and some other features. OI is caused by mutations in the two genes encoding type I collagen, namely COL1A1 and COL1A2. Some previous reports have indicated that when the mutation involves the C-propeptide cleavage site in e...