The expression of a synthetic rainbow trout metallothionein gene in E. coli

Kille, P. ; Stephens, P. ; Cryer, A. ; Kay, J.

Amsterdam : Elsevier
ISSN:
0167-4781
Keywords:
(Rainbow trout) ; Cd stabilisation ; E. coli expression ; Enzyme purification ; Immunochemical characterization ; Metallothionein ; Recombinant protein
Source:
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
Topics:
Biology
Chemistry and Pharmacology
Medicine
Physics
Type of Medium:
Electronic Resource
URL:
_version_ 1798292540669034496
autor Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
autorsonst Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
book_url http://linkinghub.elsevier.com/retrieve/pii/0167-4781(90)90054-6
datenlieferant nat_lic_papers
fussnote A synthetic gene for rainbow trout metallothionein was constructed and inserted into a dual origin plasmid where expression was induced by a temperature shift in a proteinase-deficient strain of Escherichia coli. The recombinant protein was purified to homogeneity, and a partial amino acid sequence was determined to confirm its identity. Its immunochemical characteristics were similar to those of native metallothionein from rainbow trout. The amounts of recombinant metallothionein produced were quantified in soluble cell extracts by ELISA. Low concentrations were detected when growth was performed either in L-broth or defined (GMM-II) medium. Supplementation of the medium with zinc or copper had no effect on the amount of metallothionein produced. By contrast, when cadmium was included in either L-broth or GMM-II medium, much higher concentrations of the protein within the cells (approx. 13 μg/mg soluble cell protein) were detected. This stabilisation of the protein by metal reconstitution in vivo is considered in relation to the selective uptake / exclusion of metals by the cells and its significance for the scavenging of certain precious or toxic heavy metals is discussed.
hauptsatz hsatz_simple
identnr NLZ186816723
issn 0167-4781
journal_name Biochimica et Biophysica Acta (BBA)/Gene Structure and Expression
materialart 1
package_name Elsevier
publikationsort Amsterdam
publisher Elsevier
reference 1048 (1990), S. 178-186
schlagwort (Rainbow trout)
Cd stabilisation
E. coli expression
Enzyme purification
Immunochemical characterization
Metallothionein
Recombinant protein
search_space articles
shingle_author_1 Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
shingle_author_2 Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
shingle_author_3 Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
shingle_author_4 Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
shingle_catch_all_1 Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
The expression of a synthetic rainbow trout metallothionein gene in E. coli
(Rainbow trout)
Cd stabilisation
E. coli expression
Enzyme purification
Immunochemical characterization
Metallothionein
Recombinant protein
(Rainbow trout)
Cd stabilisation
E. coli expression
Enzyme purification
Immunochemical characterization
Metallothionein
Recombinant protein
0167-4781
01674781
Elsevier
shingle_catch_all_2 Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
The expression of a synthetic rainbow trout metallothionein gene in E. coli
(Rainbow trout)
Cd stabilisation
E. coli expression
Enzyme purification
Immunochemical characterization
Metallothionein
Recombinant protein
(Rainbow trout)
Cd stabilisation
E. coli expression
Enzyme purification
Immunochemical characterization
Metallothionein
Recombinant protein
0167-4781
01674781
Elsevier
shingle_catch_all_3 Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
The expression of a synthetic rainbow trout metallothionein gene in E. coli
(Rainbow trout)
Cd stabilisation
E. coli expression
Enzyme purification
Immunochemical characterization
Metallothionein
Recombinant protein
(Rainbow trout)
Cd stabilisation
E. coli expression
Enzyme purification
Immunochemical characterization
Metallothionein
Recombinant protein
0167-4781
01674781
Elsevier
shingle_catch_all_4 Kille, P.
Stephens, P.
Cryer, A.
Kay, J.
The expression of a synthetic rainbow trout metallothionein gene in E. coli
(Rainbow trout)
Cd stabilisation
E. coli expression
Enzyme purification
Immunochemical characterization
Metallothionein
Recombinant protein
(Rainbow trout)
Cd stabilisation
E. coli expression
Enzyme purification
Immunochemical characterization
Metallothionein
Recombinant protein
0167-4781
01674781
Elsevier
shingle_title_1 The expression of a synthetic rainbow trout metallothionein gene in E. coli
shingle_title_2 The expression of a synthetic rainbow trout metallothionein gene in E. coli
shingle_title_3 The expression of a synthetic rainbow trout metallothionein gene in E. coli
shingle_title_4 The expression of a synthetic rainbow trout metallothionein gene in E. coli
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source_archive Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
timestamp 2024-05-06T08:50:08.941Z
titel The expression of a synthetic rainbow trout metallothionein gene in E. coli
titel_suche The expression of a synthetic rainbow trout metallothionein gene in E. coli
A synthetic gene for rainbow trout metallothionein was constructed and inserted into a dual origin plasmid where expression was induced by a temperature shift in a proteinase-deficient strain of Escherichia coli. The recombinant protein was purified to homogeneity, and a partial amino acid sequence was determined to confirm its identity. Its immunochemical characteristics were similar to those of native metallothionein from rainbow trout. The amounts of recombinant metallothionein produced were quantified in soluble cell extracts by ELISA. Low concentrations were detected when growth was performed either in L-broth or defined (GMM-II) medium. Supplementation of the medium with zinc or copper had no effect on the amount of metallothionein produced. By contrast, when cadmium was included in either L-broth or GMM-II medium, much higher concentrations of the protein within the cells (approx. 13 μg/mg soluble cell protein) were detected. This stabilisation of the protein by metal reconstitution in vivo is considered in relation to the selective uptake / exclusion of metals by the cells and its significance for the scavenging of certain precious or toxic heavy metals is discussed.
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