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Putative Macaque and Orangutan homologues of tripeptidyl-peptidase II


Marketed By :  AV Akademikerverlag   Sold By :  Kamal Books International  
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  • Product Description

Tripeptidyl-peptidase II (TPP2) is a 138–150 kDa serine protease with a subtilisin-like N-terminal catalytic domain and an 800 residues long C-terminal extension. It releases tripeptides from the N-terminus of its substrates and has been implicated in various processes, e. g. general protein turnover and MHC I antigen processing. TPP2 has been observed in different oligomeric states, ranging from dimers up to tetracontamers. Intriguingly, its specific activity increases with oligomer size. Although oligomerization and oligomerization-dependent activity enhancement remain poorly understood, they likely involve the C-terminal part of TPP2. To validate this assumption, we investigated two shortened homologues of human TPP2: mTPP2 from M. fascicularis and oTPP2 from P. abelii lacked the complete C-terminal segment and about half of it, respectively. We partially succeeded in expressing tagged constructs of these putative enzymes in E. coli and in purifying them from bacterial cell lysates. Both proteins appeared highly polydisperse during analytical gel filtration and were inactive against a standard substrate. These findings suggest that mTPP2 and oTPP2 represent truncated variants of their respective full-length sequences, and that proper oligomerization requires a complete C-terminal part.

Product Specifications
SKU :COC87004
AuthorWolfgang Skala
Number of Pages184
Publishing Year2013-05-02T00:00:00.000
Edition1 st
Book TypeBiophysics
Country of ManufactureIndia
Product BrandAV Akademikerverlag
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-10-08 00:00:00