The myoglobin and the hemoglobin of Biomphalaria glabrata, an evidence of gene duplications.
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چکیده
منابع مشابه
Size Polymorphism in Alleles of the Myoglobin Gene from Biomphalaria Mollusks
Introns are common among all eukaryotes, while only a limited number of introns are found in prokaryotes. Globin and globin-like proteins are widely distributed in nature, being found even in prokaryotes and a wide range of patterns of intron-exon have been reported in several eukaryotic globin genes. Globin genes in invertebrates show considerable variation in the positions of introns; globins...
متن کاملCharacterization of the myoglobin and its coding gene of the mollusc Biomphalaria glabrata.
A cDNA clone isolated from a Biomphalaria glabrata (Mollusca, Gastropoda) neural cDNA library was identified as encoding a myoglobin-like protein of 148 amino acids with a single domain and a calculated mass of 16,049.29. Alignment with globin sequences with known tertiary structure confirms its overall globin nature. The expressed myoglobin was identified in the radular muscle and isolated. Ox...
متن کاملRed blood with blue-blood ancestry: intriguing structure of a snail hemoglobin.
The phylogenetic enigma of snail hemoglobin, its isolated occurrence in a single gastropod family, the Planorbidae, and the lack of sequence data, stimulated the present study. We present here the complete cDNA and predicted amino acid sequence of two hemoglobin polypeptides from the planorbid Biomphalaria glabrata (intermediate host snail for the human parasite Schistosoma mansoni). Both isofo...
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15 Gregory, T.R. (2003) Genome size estimates for two important freshwater molluscs, the zebra mussel (Dreissena polymorpha) and the schistosomiasis vector snail (Biomphalaria glabrata).Genome46, 841–844 16 Goldman, M.A. et al. (1984) Chromosomal evolution in planorbid snails of the genera Bulinus and Biomphalaria. Malacologia 25, 427–446 17 Knight, M. et al. (1998) Expressed sequence tags (EST...
متن کاملBiomphalaria glabrata Metallothionein: Lacking Metal Specificity of the Protein and Missing Gene Upregulation Suggest Metal Sequestration by Exchange Instead of through Selective Binding
The wild-type metallothionein (MT) of the freshwater snail Biomphalaria glabrata and a natural allelic mutant of it in which a lysine residue was replaced by an asparagine residue, were recombinantly expressed and analyzed for their metal-binding features with respect to Cd2+, Zn2+ and Cu⁺, applying spectroscopic and mass-spectrometric methods. In addition, the upregulation of the Biomphalaria ...
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عنوان ژورنال:
- Memorias do Instituto Oswaldo Cruz
دوره 93 Suppl 1 شماره
صفحات -
تاریخ انتشار 1998