Genomic organization and primary structure of five homologous pairs of intron-less genes encoding secretory globins from the insect Chironomus thummi thummi |
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| Authors: | M Antoine C Erbil E Münch S Schnell J Niessing |
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| Affiliation: | 1. University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China;2. Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China;3. Food Science and Technology Program, Beijing Normal University–Hong Kong Baptist University–United International College, Zhuhai 519087, China |
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| Abstract: | From a Chironomus thummi thummi genomic library we have isolated two distinct recombinant phages, CttG-1 and CttG-3, each carrying a cluster of five homologous globin genes. In addition to the previously reported nucleotide sequence of globin gene D (Antoine and Niessing, 1984) we present the chromosomal arrangement, primary structure and predicted amino acid sequence of nine globin genes. The divergently transcribed globin genes all lack introns, they encode secretory preglobins each containing a highly conserved signal peptide. The amino acid sequences deduced from the globin genes correspond to globin III and variants thereof, to globin IV, and to a novel globin, whose direct amino acid sequence has not yet been reported. |
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