Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
2000-3-7
pubmed:abstractText
The Ring-Infected Erythrocyte Surface Antigen (Pf155/RESA) sequence was chemically synthesized in fifty four 20-mer sequential peptides, covering the entire protein, each of which was tested in erythrocyte binding assays. Peptides 6671 and 6673, corresponding to residues 141-160 and 181-200, respectively, presented a high specific binding activity to erythrocytes with affinity constants of 190 nM and 105 nM respectively. Their binding was sensitive to previous enzymatic treatment of erythrocytes. A region of peptide 6673 has been identified, very recently, as a B-cell epitope, target of neutralizing antibodies (Siddique AB, Iqbal J, Ahlborg N, Wâhlin FB, Perlmann P, Berzins K. Antibodies to nonrepeat sequences of antigen Pf155/RESA of Plasmodium falciparum inhibit parasite growth in vitro. Parasitol Res 1998;84:485-91). The critical residues for erythrocyte binding for peptide 6671 (MTDVNRYRYSNNYEAIPHIS) and for peptide 6673 (LGRSGGDIIKKMQTLWDEIM) were recognized. Based on these data, the presence of five functional regions of RESA is postulated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0264-410X
pubmed:author
pubmed:issnType
Print
pubmed:day
31
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1289-93
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Amino terminal peptides of the ring infected erythrocyte surface antigen of Plasmodium falciparum bind specifically to erythrocytes.
pubmed:affiliation
Instituto de Inmunología. Hospital San Juan de Dios, Universidad Nacional de Colombia, Av. No 10-01, Santafé de Bogotá, Colombia. rivebra@hotmail.com
pubmed:publicationType
Journal Article