Linked Life Data

8226935

Source:http://linkedlifedata.com/resource/pubmed/id/8226935

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
32
pubmed:dateCreated
1993-12-13
pubmed:databankReference
pubmed:abstractText
The nucleotide sequence of two genes encoding fibronectin (Fn) receptors FnBA and FnBB of Streptococcus dysgalactiae S2 revealed the presence of repeated motifs (called RA1-A3 and RB1-B3, respectively) which encode Fn binding activity (Lindgren, P.-E., McGavin, M. J., Signäs, C., Guss, B., Gurusiddappa, S., Höök, M., and Lindberg, M. (1993) Eur. J. Biochem. 214, 819-827). Synthetic peptides of 32-37 amino acids, corresponding to individual repeated motifs, were assayed for the ability to inhibit Fn binding to cells of S. dysgalactiae. Within the RA motifs, peptide A2 was 10-fold more active than either A1 or A3, while in the RB motifs, only B3 was active. The same level of activity is observed when these synthetic peptides were assayed for inhibition of Fn binding to cells of Staphylococcus aureus. Likewise, synthetic peptides corresponding to the RD1-D3 motifs, which comprise a ligand binding domain in a Fn receptor from S. aureus, inhibit binding of Fn to both S. aureus and S. dysgalactiae. Assays of chemically modified peptides and peptide fragments derived from chemical or proteolytic cleavage suggest that a conserved core sequence, defined as ED(T/S) (X9,10)GG(X3,4)(I/V)DF, within a 30-amino acid-long segment is present in the active RA and RD motifs. Analyses of the importance of individual residues of this core sequence indicate that the ED(T/S) motif is nonessential, whereas the GG and the (I/V)DF together with additional acidic residues in the C-terminal half of the peptide are required for activity.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
268
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
23946-53
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Fibronectin receptors from Streptococcus dysgalactiae and Staphylococcus aureus. Involvement of conserved residues in ligand binding.
pubmed:affiliation
Department of Biochemistry, University of Alabama at Birmingham 35294-0005.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't