Document Detail


Production of synthetic methionine-free and synthetic methionine-limited alpha casein: protein foodstuff for patients with homocystinuria due to cystathionine beta-synthase deficiency.
MedLine Citation:
PMID:  20033268     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of this study was to evaluate the possibility that synthetic forms of methionine-free alpha-casein and methionine-limited alpha casein could be produced by recombinant means to form the basis for developing an industrial-scale process for the provision of a foodstuff suitable for patients with homocystinuria due to cystathionine beta-synthase (CBS) deficiency. As a first step, two forms of alpha casein gene, encoding methionine-free alpha casein (Fcas) or a methionine-limited alpha casein (Mcas), were synthesised and expressed in Escherichia coli. Using the overexpression vector pET28a, both genes were highly expressed in E. coli in soluble form as well as in inclusion bodies. The two recombinant proteins were purified by the one step methods using the fused His-tag and the Ni(2+)column and validated by Western blot analysis. This work paves the way for industrial-scale production of proteins suitable for patients with homocystinuria due to CBS deficiency.
Authors:
Sayed K Goda; Yasmin W Abu Aqel; Mai R Al-Aswad; Fatma A B Rashedy; Amr S Mohamed
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The protein journal     Volume:  29     ISSN:  1875-8355     ISO Abbreviation:  Protein J.     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-01-20     Completed Date:  2010-03-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101212092     Medline TA:  Protein J     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  44-9     Citation Subset:  IM    
Affiliation:
College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar. sayed.goda@qu.edu.qa
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MeSH Terms
Descriptor/Qualifier:
Caseins / analysis,  genetics,  isolation & purification,  metabolism*
Cloning, Molecular
Cystathionine beta-Synthase / deficiency*
Escherichia coli / genetics,  metabolism
Homocystinuria / diet therapy,  enzymology*
Humans
Methionine / analysis*,  genetics,  metabolism
Protein Engineering*
Recombinant Proteins / analysis,  genetics,  isolation & purification,  metabolism
Chemical
Reg. No./Substance:
0/Caseins; 0/Recombinant Proteins; 63-68-3/Methionine; EC 4.2.1.22/Cystathionine beta-Synthase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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