Click here to close Hello! We notice that you are using Internet Explorer, which is not supported by Xenbase and may cause the site to display incorrectly. We suggest using a current version of Chrome, FireFox, or Safari.
Protein J 2014 Apr 01;332:150-6. doi: 10.1007/s10930-014-9542-5.
Show Gene links Show Anatomy links

Degradation of M(r) 25,000 protein by cathepsin L-like protease in Xenopus laevis oocytes.

Islam A , Horinouchi T , Hashimoto E .

A phosphorylated protein with a molecular mass of 25,000 (pp25) is involved in Xenopus laevis vitellogenin B1 and partially overlaps with phosvitin and lipovitellin 2. The protease responsible for pp25 degradation was studied in vitro since this occurs during embryogenesis. Initially, a protease thought to be a contaminant of the purified pp25 preparation was analyzed and an antipain-sensitive protease presumed to be involved. When commercially available proteases were examined, pp25 was not degraded by calpain I or 20S proteasome, but it was degraded by cathepsin L in vitro. A survey of the protease responsible for pp25 degradation in the cytoplasm of Xenopus oocytes found partially purified pp25 was degraded in partly antipain-sensitive manner. These results suggest that an antipain-sensitive protease or cathepsin L (or a related protease) is a candidate for pp25 degradation.

PubMed ID: 24510540
Article link: Protein J

Species referenced: Xenopus laevis
Genes referenced: ctsl vtga2 vtgb1

References [+] :
Bando, Purification and tissue distribution of rat cathepsin L. 1986, Pubmed