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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1998-6-16
pubmed:abstractText
A deleted variant of hepatocyte growth factor (dHGF) is a naturally occurring major variant of HGF, which lacks five consecutive amino acid residues in the first kringle domain. While both HGF and dHGF bind to heparin, the residues involved in the binding to heparin have not been identified in either protein. To identify the residues involved in the binding, we made a series of dHGF mutants in which basic residues in the N-terminal and the first kringle domains were replaced with alanine residue. The analysis of heparin-binding ability revealed that three stretches, 42RCTRNK in the hairpin loop structure, and 2RKRR and 27KIKTKK in the N-terminal basic region, are involved in the binding. Alanine substitution of each basic residue except 3K and 27K in the stretches reduced the heparin-binding ability of dHGF, and the decrease was additive. Conversely, lysine substitution of 37D, 38Q or 64Q in the N-terminal domain increased heparin-binding ability. These results suggest that stretches distant from each other in the primary structure come into close proximity when the polypeptide folds into protein, and form a heparin-binding site with clusters of basic residues.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
1384
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
93-102
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Identification of heparin-binding stretches of a naturally occurring deleted variant of hepatocyte growth factor (dHGF).
pubmed:affiliation
Research Institute of Life Science, Snow Brand Milk Products, Tochigi, Japan.
pubmed:publicationType
Journal Article