2004
DOI: 10.1016/j.febslet.2004.04.085
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Isolation and characterization of anti‐HIV peptides from Dorstenia contrajerva and Treculia obovoidea

Abstract: Using a high throughput screen based on the interaction of the HIV-1 gp41 ectodomain with the virucidal protein cyanovirin-N (CV-N), we isolated two new peptides which inhibited the binding of CV-N to gp41 and which subsequently showed anti-HIV activity in a whole cell assay. A 5-kDa (contrajervin) and 10 kDa (treculavirin) peptide were isolated from Dorstenia contrajerva and Treculia obovoidea, respectively. Treculavirin was composed of two subunits, each containing 50 amino acid residues, which are covalentl… Show more

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Cited by 17 publications
(8 citation statements)
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“…Nevertheless, this study supports the traditional use of plants of Treculia obovoidea in the treatment of infectious illness such as skin diseases, dysentery and AIDS (Berg et al, 1985;Bokesch et al, 2004). In addition, a good number of authors have documented the antimicrobial potency of some of the compounds isolated from Treculia obovoidea or their derivatives.…”
Section: Microorganismssupporting
confidence: 55%
See 1 more Smart Citation
“…Nevertheless, this study supports the traditional use of plants of Treculia obovoidea in the treatment of infectious illness such as skin diseases, dysentery and AIDS (Berg et al, 1985;Bokesch et al, 2004). In addition, a good number of authors have documented the antimicrobial potency of some of the compounds isolated from Treculia obovoidea or their derivatives.…”
Section: Microorganismssupporting
confidence: 55%
“…Treculia obovoidea N.E. Brown (Moraceae), one of the tree plants of the genus Treculia is traditionally used to treat skin diseases, dental allergy, amoebic dysentery and AIDS (Berg et al, 1985;Bokesch et al, 2004). It is distributed in the humid regions of Africa, from Nigeria to Congo.…”
Section: Introductionmentioning
confidence: 98%
“…33 Outros dois exemplos vêm de duas espécies de Moraceae, das quais 30 foram isolados peptídeos capazes de se ligar às proteínas virais gp41 e gp120 impedindo a infecção da célula hospedeira, sendo um fármaco anti-HIV. 34 Contrajervina, um peptídeo de 46 resíduos de aminoácidos isolado de Dorstenia contrajerva L. tem sua natureza cíclica mantida por oito ligações dissulfeto, enquanto que a treculavirina, isolada de Treculia obovoidea N. E. Br. apresenta estrutura dimérica, onde cada monômero é formado por uma cadeia polipeptídica de 50 resíduos de aminoácidos sendo que vinte são resíduos de cisteína envolvidos na formação de dez ligações dissulfeto.…”
Section: Diversidade Química E Sistema De Classificaçãounclassified
“…Desta forma, a natureza dimérica de treculavirina é mantida por, pelo menos, uma ligação dissulfeto entre os monômeros. 34 O caso mais interessante é o dos peptídeos inibidores de tripsina MCoTI-I e MCoTI-II, isolados de Momordica cochinchinensis (Lour.) Spreng.…”
Section: Diversidade Química E Sistema De Classificaçãounclassified
“…Most anti-HIV lectins have been identified in and isolated from natural sources. They include cyanovirin-N [11], [12] and scytovirin [13] from cyanobacteria, contrajervin and treculavirin from moraceous plants [14], and the θ-defensin peptides of non-human primates [15][19]. Among these, the red algal protein griffithsin (GRFT) [20] stands out as having the most potent anti-HIV inhibitory activity, with an average EC 50 of 40 pM [20], [21].…”
Section: Introductionmentioning
confidence: 99%