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Electrophoresis November 1, 1996; 17 (11): 1720-7.

Analysis of chaperonin-containing TCP-1 subunits in the human keratinocyte two-dimensional protein database: further characterisation of antibodies to individual subunits.

Hynes G , Celis JE , Lewis VA , Carne A , U S , Lauridsen JB , Willison KR .

The chaperonin-containing TCP-1 (CCT), found in the eukaryotic cytosol, is currently the focus of extensive research. CCT consists of at least eight different subunit types encoded by independent but related genes, and a set of antibodies that recognise individual subunits has proved useful in the characterisation and functional analysis of CCT. These antibodies were used to identify subunits of CCT in the human keratinocyte two-dimensional protein database. Accurate values for the pI and molecular mass of human CCT subunits were determined from the database, and biological data was obtained regarding changes in subunit levels in response to extracellular agents and growth conditions. The second part of the study describes the characterisation of seven monoclonal antibodies raised against mouse TCP-1, also known as CCT alpha, using a combination of epitope mapping and immunoblot analysis of protein extracts from different species and tissue types. Some antibodies were not monospecific for TCP-1, and a number of epitope-related proteins were identified.

PubMed ID: 8982604
Article link: Electrophoresis

Species referenced: Xenopus
Genes referenced: hspd1 pcyt1a