rdf:type |
|
lifeskim:mentions |
umls-concept:C0017262,
umls-concept:C0033684,
umls-concept:C0185117,
umls-concept:C0205245,
umls-concept:C0376315,
umls-concept:C0871161,
umls-concept:C0995327,
umls-concept:C1540138,
umls-concept:C1749467,
umls-concept:C1998793,
umls-concept:C2911684
|
pubmed:issue |
2
|
pubmed:dateCreated |
1994-9-13
|
pubmed:databankReference |
|
pubmed:abstractText |
The TlpA protein of Bradyrhizobium japonicum was previously identified genetically as a membrane-anchored, periplasmic thioredoxin-like protein. Here we describe the heterologous expression in Escherichia coli, subsequent purification and biochemical characterization of TlpA. A soluble form of TlpA, which lacks its N-terminal membrane anchor, was overexpressed in E. coli and purified by a two-step procedure. Pure TlpA was shown to be a monomer in solution and was active in reducing the disulfides of insulin and in reactivating reduced, denatured RNaseA. Evidence is presented that two non-active-site cysteine residues form an intramolecular disulfide bond, a feature that is not normally found in other prokaryotic thioredoxins.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
|
pubmed:issn |
0014-2956
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
15
|
pubmed:volume |
223
|
pubmed:geneSymbol |
malE
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
339-44
|
pubmed:dateRevised |
2007-11-15
|
pubmed:meshHeading |
pubmed-meshheading:8055901-Amino Acid Sequence,
pubmed-meshheading:8055901-Bacterial Proteins,
pubmed-meshheading:8055901-Base Sequence,
pubmed-meshheading:8055901-Blotting, Western,
pubmed-meshheading:8055901-Cloning, Molecular,
pubmed-meshheading:8055901-Cysteine,
pubmed-meshheading:8055901-Escherichia coli,
pubmed-meshheading:8055901-Molecular Sequence Data,
pubmed-meshheading:8055901-Molecular Weight,
pubmed-meshheading:8055901-Mutagenesis, Site-Directed,
pubmed-meshheading:8055901-Oxidation-Reduction,
pubmed-meshheading:8055901-Plasmids,
pubmed-meshheading:8055901-Rhizobiaceae,
pubmed-meshheading:8055901-Ribonucleases,
pubmed-meshheading:8055901-Solubility,
pubmed-meshheading:8055901-Thioredoxins
|
pubmed:year |
1994
|
pubmed:articleTitle |
Expression, purification and functional properties of a soluble form of Bradyrhizobium japonicum TlpA, a thioredoxin-like protein.
|
pubmed:affiliation |
Mikrobiologisches Institut, Eidgenössische Technische Hochschule, Zürich, Switzerland.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|