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Expression of human...
Expression of human milk beta-casein in Escherichia coli : comparison of recombinant protein with native isoforms.
- Artikel/kapitelEngelska1993
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Elsevier BV,1993
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:umu-45440
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-45440URI
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https://doi.org/10.1006/prep.1993.1049DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Studies on physiological function and on structure-function relationships of human milk beta-casein have been limited. In this study, we have introduced the human beta-casein cDNA into vectors designed for expression in Escherichia coli. The inducible T7-based expression system resulted in high-level expression of recombinant beta-casein. The recombinant beta-casein, localized intracellularly in E. coli, was purified to homogeneity and compared with purified native beta-casein, in particular with respect to phosphorylation. The E. coli-produced beta-casein was found to comigrate with the full-length, nonphosphorylated native human beta-casein isoform on SDS-PAGE. An N-terminal peptide containing all tentative phosphorylation sites was isolated from the recombinant protein and analyzed by mass spectrometry. The molecular mass as well as the migration of this peptide on reversed-phase chromatography confirmed that it was unphosphorylated.
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Bergström, S
(författare)
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Hernell, OlleUmeå universitet,Pediatrik(Swepub:umu)olhe0002
(författare)
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Lönnerdal, B
(författare)
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Nilsson, A K
(författare)
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Strömqvist, M
(författare)
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Umeå universitetPediatrik
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Protein Expression and Purification: Elsevier BV4:5, s. 373-811046-59281096-0279
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