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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2001-12-20
pubmed:abstractText
The FHIT (fragile histidine triad) gene located at chromosome 3p14.2 has been proposed as a candidate tumor suppressor gene in human cancers. Fhit protein with the diadenosine 5',5'''-P1,P3-triphosphate (Ap3A) hydrolase activity is the protein product of FHIT gene. The way in which Fhit exerts its tumor suppressor activity and the relationship of the Ap3A hydrolase activity to tumor suppression are not known. As a step toward understanding of the Fhit function in the cell we have explored its intracellular localization and distribution in the rat tissues. Data obtained from immunoblot analysis showed that Fhit protein was most abundant in spleen and brain. Moderate amount of Fhit was detected in kidney and liver, whereas the level of Fhit protein in heart, skeletal muscle and kidney glomeruli was undetectable. RT-PCR performed on RNA isolated from these tissues showed no product, whereas the level of Fhit mRNA in spleen, brain, kidney, liver and lung correlated with the Fhit protein level. The immunoblot analysis performed on subcellular fractions of various rat tissues obtained by differential and density-gradient centrifugation showed that Fhit protein was localized exclusively in nucleus and at the plasma membrane. Presented data showing nuclear and plasma membrane localization of Fhit may support the hypothesis concerning Fhit as a signaling molecule.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0300-8177
pubmed:author
pubmed:issnType
Print
pubmed:volume
226
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
49-55
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:11768238-Acid Anhydride Hydrolases, pubmed-meshheading:11768238-Animals, pubmed-meshheading:11768238-Cell Membrane, pubmed-meshheading:11768238-Cell Nucleus, pubmed-meshheading:11768238-Dinucleoside Phosphates, pubmed-meshheading:11768238-Electrophoresis, Polyacrylamide Gel, pubmed-meshheading:11768238-Immunoblotting, pubmed-meshheading:11768238-Kidney, pubmed-meshheading:11768238-Liver, pubmed-meshheading:11768238-Lung, pubmed-meshheading:11768238-Neoplasm Proteins, pubmed-meshheading:11768238-RNA, Messenger, pubmed-meshheading:11768238-Rats, pubmed-meshheading:11768238-Rats, Wistar, pubmed-meshheading:11768238-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:11768238-Spleen, pubmed-meshheading:11768238-Subcellular Fractions, pubmed-meshheading:11768238-Tissue Distribution
pubmed:year
2001
pubmed:articleTitle
Distribution of Fhit protein in rat tissues and its intracellular localization.
pubmed:affiliation
Department of Molecular Medicine, Medical University of Gdansk, Poland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't