2002
DOI: 10.1016/s0014-5793(02)03534-2
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Maturation of the activities of recombinant mite allergens Der p 1 and Der f 1, and its implication in the blockade of proteolytic activity

Abstract: Recombinant pro‐Der p 1 expressed in yeast Pichia pastoris was convertible into the prosequence‐removed mature Der p 1 with full activities of cysteine protease and IgE‐binding with or without N‐glycosylation of the mature sequence as well as pro‐Der f 1. The active recombinant variants will be the basis for various future studies. The major N‐terminus of pro‐Der p 1 with low proteolytic activity was the putative signal‐cleavage site, while that of pro‐Der f 1 contained not only the equivalent site but also 21… Show more

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Cited by 44 publications
(85 citation statements)
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“…However, surprisingly, for the N16pQ and N16pQ/N52Q mutants, partial activation occurred during the production, leading to the appearance of different forms. The N-terminal sequencing of the purified mutants revealed the presence of at least three forms, previously described by Takai et al and Jacquet et al 13,14 The first one displayed the ATFE sequence, which corresponds to the cleavage of the peptide bond between Tyr19p and Ala20p. This site is only three residues away from the propeptide Nglycosylation site and gives rise to the loss of the first α-helix of the propeptide (Fig.…”
Section: Resultsmentioning
confidence: 62%
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“…However, surprisingly, for the N16pQ and N16pQ/N52Q mutants, partial activation occurred during the production, leading to the appearance of different forms. The N-terminal sequencing of the purified mutants revealed the presence of at least three forms, previously described by Takai et al and Jacquet et al 13,14 The first one displayed the ATFE sequence, which corresponds to the cleavage of the peptide bond between Tyr19p and Ala20p. This site is only three residues away from the propeptide Nglycosylation site and gives rise to the loss of the first α-helix of the propeptide (Fig.…”
Section: Resultsmentioning
confidence: 62%
“…[12][13][14] Despite several attempts, in vitro demonstration of the activation of ProDer p 1 remains partly unsuccessful. For example, purified recombinant proforms of Der p 1 expressed in mammalian CHO and insect Drosophila cells could be converted into mature forms by incubation at pH 4 but do not exhibit enzymatic activity.…”
Section: Introductionmentioning
confidence: 99%
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“…Generation of the Der p 1 and Der f 1 Protein-Recombinant Der p 1 and Der f 1 proteins were generated as described before (33,34). Briefly, proforms of four recombinant house dust mite group 1 allergens, Der p 1-N52Q, Der p 1-WT, Der f 1-N53Q, and Der f 1-WT, were secreted into the culture supernatant of transfectant cells of Pichia pastoris and converted to the mature forms with prosequences removed by dialysis against an acidic buffer.…”
Section: Methodsmentioning
confidence: 99%
“…Recombinant Der p 1 and Der f 1 were prepared as previously described (29,30), with some modifications. Briefly, proforms of recombinant proteins were secreted into the culture supernatant of yeast Pichia pastoris and converted into their prosequence-removed mature forms, Der p 1-N52Q (rDer p 1), Der f 1-N53Q (rDer f 1), Der f 1-WT, and rDer f 1-C35S (11,29,30). The mature forms were then purified by anion exchange column and sizeexclusion column chromatography.…”
Section: Agsmentioning
confidence: 99%