Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
|
pubmed:dateCreated |
1997-1-30
|
pubmed:abstractText |
We previously purified a novel Ca2+/calmodulin-dependent protein kinase (CaM kinase) V, which has proven to be a member of the CaM kinase I family. Immunohistochemical staining of surgically-resected specimens from human subjects using specific antibody which reacts with CaM kinases I and V demonstrated heterogeneous distribution of CaM kinase I/V in normal gastric mucosa. The kinase was located mainly at the bottom of foveoral epithelium and in the gastric gland (< 25% immunopositive). In contrast, this kinase was abundant in various types of gastric carcinomas (> 75%), but not in gastric adenomas. Preferential and consistent presence of this kinase was confirmed by immunoblot analysis of gastric carcinoma and human gastric cancer cell lines, Kato-III and MKN-45. CaM kinase I/V was co-purified with CaM kinase II from resected gastric carcinoma using anion-exchange chromatography followed by calmodulin-affinity chromatography. The two kinases were finally separated by HPLC-based gel filtration. Purified CaM kinase I/V from gastric carcinoma did not possess detectable autophosphorylating activity, in contrast to CaM kinase II. The findings suggest CaM kinase I/V may possess abnormal biochemical properties in human gastric carcinoma, and the kinase could participate in cell growth of the carcinoma.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
0006-3002
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
16
|
pubmed:volume |
1317
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
175-82
|
pubmed:dateRevised |
2007-11-15
|
pubmed:meshHeading |
pubmed-meshheading:8988233-Adenocarcinoma,
pubmed-meshheading:8988233-Blotting, Western,
pubmed-meshheading:8988233-Calcium-Calmodulin-Dependent Protein Kinases,
pubmed-meshheading:8988233-Cell Differentiation,
pubmed-meshheading:8988233-Gastric Mucosa,
pubmed-meshheading:8988233-Humans,
pubmed-meshheading:8988233-Immunoenzyme Techniques,
pubmed-meshheading:8988233-Molecular Weight,
pubmed-meshheading:8988233-Phosphorylation,
pubmed-meshheading:8988233-Stomach Neoplasms,
pubmed-meshheading:8988233-Tumor Cells, Cultured
|
pubmed:year |
1996
|
pubmed:articleTitle |
Identification and purification of Ca2+/calmodulin-dependent protein kinase V from human gastric carcinoma.
|
pubmed:affiliation |
Department of Pharmacology, Nagoya University School of Medicine, Japan.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|