1998
DOI: 10.1016/s0014-5793(98)00154-9
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Trypanosoma cruzi glycosomal glyceraldehyde‐3‐phosphate dehydrogenase: structure, catalytic mechanism and targeted inhibitor design

Abstract: The structure of the enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH) from glycosomes of the parasite Trypanosoma cruzi, causative agent of Chagas' disease, is reported. The final model at 2.8 A î includes the bound cofactor NAD + and 90 water molecules per monomer and resulted in an R ftor of 20.1%, R free = 22.3%, with good geometry indicators. The structure has no ions bound at the active site resulting in a large change in the side chain conformation of Arg PRW which as a consequence forms a salt br… Show more

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Cited by 96 publications
(116 citation statements)
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“…Recombinant glyceraldehyde-3-phosphate dehydrogenase (TcGAPDH) was obtained as reported previously (49). All of these proteins, as well as the recombinant TcP5CDH, were used as immunogens to produce polyclonal antibodies in mice according to standard protocols (50).…”
Section: Analysis Of Recombinant Tcp5cdhmentioning
confidence: 99%
“…Recombinant glyceraldehyde-3-phosphate dehydrogenase (TcGAPDH) was obtained as reported previously (49). All of these proteins, as well as the recombinant TcP5CDH, were used as immunogens to produce polyclonal antibodies in mice according to standard protocols (50).…”
Section: Analysis Of Recombinant Tcp5cdhmentioning
confidence: 99%
“…48 Levando-se em consideração que estas formas infectivas são altamente dependentes da via glicolítica como fonte de energia através da produção de ATP, esta se torna, portanto, um alvo atrativo para o desenvolvimento de novos agentes quimioterá-picos para a doença de Chagas. 48,49 Podem-se destacar ao menos três enzimas que têm sido bastante exploradas como alvos biológicos: a gliceraldeído-3-fosfato desidrogenase (GAPDH, EC 1.2.1.12) (Figura 5), a hexoquinase (EC 2.7.1.1), e a fosfofrutoquinase (EC 2.7.1.11). 49,50 A GAPDH é uma enzima tetramérica que catalisa a conversão do substrato gliceraldeído-3-fosfato em 1,3-bisfosfoglicerato, na presença do cofator NAD + e fosfato inorgânico.…”
Section: Via Glicolíticaunclassified
“…48,49 Podem-se destacar ao menos três enzimas que têm sido bastante exploradas como alvos biológicos: a gliceraldeído-3-fosfato desidrogenase (GAPDH, EC 1.2.1.12) (Figura 5), a hexoquinase (EC 2.7.1.1), e a fosfofrutoquinase (EC 2.7.1.11). 49,50 A GAPDH é uma enzima tetramérica que catalisa a conversão do substrato gliceraldeído-3-fosfato em 1,3-bisfosfoglicerato, na presença do cofator NAD + e fosfato inorgânico. A hexoquinase cliva adenosina trifosfato (ATP) em adenosina difosfato (ADP), enquanto que a fosfofrutoquinase catalisa a transferência irreversível de um fosfato de ATP a frutose-6-fosfato.…”
Section: Via Glicolíticaunclassified
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“…Preparation and Purification of Recombinant T. cruzi GAPDH TcGAPDH was overexpressed and purified as reported by Souza et al 9) It is maintained in the Crystallography Laboratory of the Universidade de São Paulo, São Carlos, SP, Brazil, where the enzymatic inhibition studies were carried out.…”
Section: Isolation and Structure Determination Of Bioactive Isoflavonmentioning
confidence: 99%