rdf:type |
|
lifeskim:mentions |
umls-concept:C0009968,
umls-concept:C0015252,
umls-concept:C0021031,
umls-concept:C0022023,
umls-concept:C0205145,
umls-concept:C0205369,
umls-concept:C0332466,
umls-concept:C0597304,
umls-concept:C0728940,
umls-concept:C1707271,
umls-concept:C1708067
|
pubmed:issue |
2
|
pubmed:dateCreated |
1999-6-3
|
pubmed:abstractText |
The peptide sequence (N)DKTH(C) was investigated as a site for efficient, specific cleavage of a fusion protein by cupric ions using a humanised gamma1 Fab' as a model protein. The native upper hinge (N)DKTH(C) sequence was mutated to create a site resistant to cleavage by cupric ions and a (N)DKTH(C) sequence introduced between the hinge and a C-terminal FLAG peptide. Incubation of Fab' with Cu2+ at 62 degrees C at alkaline pHs resulted in removal of the FLAG peptide with efficiencies of up to 86%. Cleavage conditions did not detrimentally affect the Fab' protein. Use of the (N)DKTH(C) sequence along with cupric ions may provide a cost-effective method for large scale proteolytic cleavage of fusion proteins.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Feb
|
pubmed:issn |
0269-2139
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
12
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
179-84
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:10195290-Amino Acids,
pubmed-meshheading:10195290-Chemical Engineering,
pubmed-meshheading:10195290-Chromatography, High Pressure Liquid,
pubmed-meshheading:10195290-Copper,
pubmed-meshheading:10195290-Dose-Response Relationship, Drug,
pubmed-meshheading:10195290-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:10195290-Humans,
pubmed-meshheading:10195290-Hydrogen-Ion Concentration,
pubmed-meshheading:10195290-Immunoglobulin Fab Fragments,
pubmed-meshheading:10195290-Kinetics,
pubmed-meshheading:10195290-Mass Spectrometry,
pubmed-meshheading:10195290-Mutagenesis,
pubmed-meshheading:10195290-Peptides,
pubmed-meshheading:10195290-Plasmids,
pubmed-meshheading:10195290-Temperature,
pubmed-meshheading:10195290-Time Factors
|
pubmed:year |
1999
|
pubmed:articleTitle |
Efficient site specific removal of a C-terminal FLAG fusion from a Fab' using copper(II) ion catalysed protein cleavage.
|
pubmed:affiliation |
Celltech Therapeutics, Slough, Berkshire, UK.
|
pubmed:publicationType |
Journal Article
|