Biochemical characterization of cathepsin D from the mussel Lamellidens corrianus

dc.contributor.author Venugopal, Ashapogu
dc.contributor.author Siva Kumar, Nadimpalli
dc.date.accessioned 2022-03-27T04:51:40Z
dc.date.available 2022-03-27T04:51:40Z
dc.date.issued 2014-01-01
dc.description.abstract A lysosomal cathepsin D (EC 3.4.23.5) was purified to homogeneity from the soft tissues of the fresh water mussel (Lamellidens corrianus) by pepstatin A affinity chromatography. The purified enzyme is a glycoprotein and migrates as a single protein species in native PAGE and shows a single band in SDS-PAGE corresponding to a molecular mass of ~43kDa. Under both these conditions cathepsin D hydrolyzes hemoglobin as shown by zymogram analysis. The purified enzyme cross-reacts with an antiserum to purified starfish (Asterias rubens) cathepsin D. Additionally, the enzyme was recognized by the starfish lysosomal enzyme targeting receptors (mannose 6-phosphate receptors: MPR 300 and 46) in ligand blot analysis. The KM value of the purified enzyme with hemoglobin is 1.5mM. pH and temperature optimum for the enzyme are 3.5 and 60°C respectively. © 2013 Elsevier Inc.
dc.identifier.citation Comparative Biochemistry and Physiology - B Biochemistry and Molecular Biology. v.169(1)
dc.identifier.issn 10964959
dc.identifier.uri 10.1016/j.cbpb.2013.12.003
dc.identifier.uri https://www.sciencedirect.com/science/article/abs/pii/S1096495913002108
dc.identifier.uri https://dspace.uohyd.ac.in/handle/1/7222
dc.subject Cathepsin D
dc.subject Invertebrate
dc.subject Lamellidens corrianus
dc.subject Mannose 6-phosphate receptor
dc.subject Zymogram
dc.title Biochemical characterization of cathepsin D from the mussel Lamellidens corrianus
dc.type Journal. Article
dspace.entity.type
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