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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-9-19
pubmed:abstractText
Hyaluronan binding protein (HABP1), located on human chromosome 17p13.3, was identified and characterized as being involved in cellular signaling from our laboratory. Here, we demonstrate that HABP1 expression in Schizosaccharomyces pombe induces growth inhibition, morphological abnormalities like elongation, multinucleation and aberrant cell septum formation in several strains of S. pombe, implicating its role in cell cycle progression and cytokinesis. This argument is further strengthened by an observed delay in the maximal expression of cell cycle regulatory proteins like CDC 2 and CDC 25 coupled to the direct interaction of HABP1 with CDC 25. In order to pinpoint the interacting domain of HABP1, its N- and C-terminal truncated variants (DeltaN.HABP1 and DeltaC.HABP1, respectively) were utilized which revealed that while expression of the former did not alter the phenotype, the latter generated morphological changes similar to those imparted upon HABP1 expression. It was also noted that along with HABP1, DeltaC.HABP1 too directly interacts with CDC 25 while DeltaN.HABP1 does not. Taken together, these data suggest that HABP1 induces morphological changes and modulates the cell cycle by interacting with proteins like CDC 25 through its N-terminal alpha-helix.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0014-4827
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
309
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
250-63
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
HABP1/p32/gC1qR induces aberrant growth and morphology in Schizosaccharomyces pombe through its N-terminal alpha helix.
pubmed:affiliation
Biochemistry Laboratory, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi-110067, India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't