rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
2009-1-23
|
pubmed:abstractText |
Membrane-bound glucono-delta-lactonase (MGL) was purified to homogeneity from the membrane fraction of Gluconobacter oxydans IFO 3244. After solubilization with 1 M CaCl2, MGL was purified in the presence of Ca2+ and detergent. A single band corresponding to 60 kDa appeared in SDS-PAGE. The molecular weight of MGL was judged to be 120 k. Differently from cytoplasmic lactonases, MGL showed optimum pH in an acidic range of 5-5.5. It was highly sensitive to metal-chelating agents such as EDTA, and the lost MGL activity was restored to the original level by the addition of divalent cations such as Ca2+ or Mg2+. The purified MGL was strictly dependent on Ca2+ and underwent rapid denaturing precipitation on Ca2+ depletion even in the presence of detergent. This communication can be the first one dealing with the solubilization, purification and properties of MGL.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Bacterial Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Carboxylic Ester Hydrolases,
http://linkedlifedata.com/resource/pubmed/chemical/Cations, Divalent,
http://linkedlifedata.com/resource/pubmed/chemical/Gluconates,
http://linkedlifedata.com/resource/pubmed/chemical/Lactones,
http://linkedlifedata.com/resource/pubmed/chemical/Membrane Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/beta-glucono-1,5-lactone,
http://linkedlifedata.com/resource/pubmed/chemical/delta-lactonase
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
1347-6947
|
pubmed:author |
|
pubmed:issnType |
Electronic
|
pubmed:volume |
73
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
241-4
|
pubmed:dateRevised |
2010-11-18
|
pubmed:meshHeading |
pubmed-meshheading:19129636-Bacterial Proteins,
pubmed-meshheading:19129636-Calcium,
pubmed-meshheading:19129636-Carboxylic Ester Hydrolases,
pubmed-meshheading:19129636-Cations, Divalent,
pubmed-meshheading:19129636-Gluconates,
pubmed-meshheading:19129636-Gluconobacter oxydans,
pubmed-meshheading:19129636-Hydrogen-Ion Concentration,
pubmed-meshheading:19129636-Lactones,
pubmed-meshheading:19129636-Membrane Proteins,
pubmed-meshheading:19129636-Molecular Weight,
pubmed-meshheading:19129636-Solubility
|
pubmed:year |
2009
|
pubmed:articleTitle |
Solubilization, purification, and properties of membrane-bound D-glucono-delta-lactone hydrolase from Gluconobacter oxydans.
|
pubmed:affiliation |
Department of Chemical and Biological Engineering, Ube National College of Technology. emiko@ube-k.ac.jp
|
pubmed:publicationType |
Journal Article
|