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Odorant binding proteins of Heliothis virescens
Insect Biochemistry and Molecular Biology, 1993cDNA clones coding for three different binding proteins were isolated from an antennal library of Heliothis virescens. The deduced amino acid sequences showed only moderate homology to each other but shared several common structural features. Based on a comparison with the predicted primary structures of antennal binding proteins from different moth ...
J, Krieger +3 more
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Electrochemical biosensing with odorant binding proteins
2020The development of sensors that mimic the natural smell sensing mechanism and selectively recognizes the odorants remains highly challenging. Electrochemical based sensing approaches aiming at monitoring molecular recognition events between surface receptors and analytes in solution or in the gas phase, are one possible transduction platforms among ...
Szunerits, Sabine +2 more
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Odorant Binding to Bovine Odorant Binding Protein Detected by Intrinsic Fluorescence
Chemistry Letters, 2005Abstract Odorant binding to bovine odorant binding protein (OBPb) made OBPb structure a little tighter and odorant detection by intrinsic fluorescence possible. For odorant with high affinity such as 3,7-dimethyl-1-octanol (DMO), the binding reaction proceeded in a two-step manner that inferred an existence of a third binding site.
Mineo Ikematsu +2 more
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Odorant binding initially occurring at the central pocket in bovine odorant-binding protein
Biochemical and Biophysical Research Communications, 2005Why bovine odorant-binding protein (OBPb), among OBP family, assumes a dimeric structure has been unclear. Here we clarified, by measuring the fluorescence of intrinsic tryptophan and tyrosine residues of intact OBPb and OBPb whose C-terminal 10 amino acids were deleted, that odorant enters the central pocket formed by the dimerization when OBPb first ...
Mineo, Ikematsu +2 more
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Immunocytochemistry of Odorant-Binding Proteins
1994Odorant-binding proteins are small water-soluble proteins that have been detected in the perireceptor compartment of olfactory receptor cells of vertebrates and insects [1,2]. Although their definite physiological role in olfaction is still unclear, similar functions have been proposed in stimulus transport or inactivation [1–6].
Steinbrecht, R. +3 more
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Site-directed mutagenesis of odorant-binding proteins
2020Modifying the affinity of odorant-binding proteins (OBPs) to small ligands by replacement of specific residues in the binding pocket may lead to several technological applications. Thanks to their compact and stable structures, OBPs are currently regarded as the best candidates to be used in biosensing elements for odorants and volatiles detection. The
Jiao, Zhu +4 more
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Odorant-Binding Proteins from a Primitive Termite
Journal of Chemical Ecology, 2002Hitherto, odorant-binding proteins (OBPs) have been identified from insects belonging to more highly evolved insect orders (Lepidoptera, Coleoptera, Diptera, Hymenoptera, and Hemiptera), whereas only chemosensory proteins have been identified from more primitive species, such as orthopteran and phasmid species.
Yuko, Ishida +3 more
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Odorant‐Binding Proteins: Expression and Function
Annals of the New York Academy of Sciences, 1998ABSTRACT: Odorant‐binding proteins (OBPs) are a major constituent of the aqueous perireceptor compartment in vertebrates and in insects. Although different in primary structure, they are supposed to serve similar functions in both animal groups: (i) OBPs may act as solubilizers and carriers of the lipophilic odorants in the aqueous mucus or sensillum ...
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Conformational Isomers of Insect Odorant-Binding Proteins
Archives of Biochemistry and Biophysics, 2002We have identified and cloned the cDNAs encoding odorant-binding proteins (OBPs) from the large black chafer, Holotrichia parallela, and the yellowish elongate chafer, Heptophylla picea. Each species possess two OBPs, the proteins migrating faster in native gels (OBP1) showed high amino acid identity (>88%) to previously identified pheromone-binding ...
Zhang, Deyu, Walter Soares, Leal
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Mechanistic events underlying odorant binding protein chemoreception
Proteins: Structure, Function, and Bioinformatics, 2007AbstractOdorant binding proteins (OBP's) are small hydrophilic proteins, belonging to the lipocalin family dedicated to bind and transport small hydrophobic ligands. Despite many works, the mechanism of ligand binding, together with the functional role of these proteins remains a topic of debate and little is known at the atomic level. The present work
Golebiowski, Jérôme +3 more
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