By Gustavo Maroni
Drosophila, the typical fruit fly, is the main greatly studied of all organisms from the point of view of genetics and cytology. This atlas summarizes what's identified concerning the nearly a hundred Drosophila genes for which the whole nucleotide series is understood. every one access contains a description of the gene's molecular association and expression, the entire nucleotide and amino acid sequences, maps of attention-grabbing constructions, highlights of sensible positive aspects and promoter regulatory areas, and chosen references to the first literature. A separate component of the atlas considers diversified points of gene association as they ensue within the Drosophila genome. subject matters lined comprise dimension correlations between numerous genetic components, splicing indications, translation initiation signs, and codon bias. The paintings represents a brand new milestone in summarizing present details and making it simply available to geneticists and biologists.
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Extra info for An Atlas of Drosophila Genes: Sequences and Molecular Features
Nucleotide sequence of the duplicated Amylase structural genes in Drosophila melanogaster. Proc. Japan Acad. Ser. B 64:274-277. 5 The Andropin and Cecropins Gene Cluster: Anp, CecAl, CecAl, CecB, CecC Chromosomal Location: Map Position: 3R, 99E 3- Products Antibacterial peptides. Structure Sequence analysis suggests that each polypeptide may fold into two amphipathic a-helices separated by a four-amino-acid loop (Samakovlis et al. 1991). By analogy to the better-characterized cecropins of the moth Hyalophora cecropia, processing is predicted to include the removal of the signal peptide and of an additional dipeptide at the N-terminus, and cleavage of the terminal Gly plus amidation at the C-terminus.
Because most of the coding sequence was determined from a cDNA, the presence of other small introns cannot be ruled out (Act42A sequence) (Fyrberg et al. 1981; Couderc et al. 1987). Developmental Pattern During embryonic development, Act42A transcription follows a pattern similar to that of ActSC. The accumulation of transcripts is greatest in the midgut, central nervous system and gonads (Tobin et al. 1990). Act42A is expressed in Act42A SEQUENCE (opposite). Mostly from Canton S. Accession, K00670, K00671 (DROACT2A), X05176 (DROACT42A).
Where there is no such agreement, the residues occupying that position in each sequence is indicated. The sequence of Act57B is known from a cDNA. There is 98% overall identity between the Drosophila and mouse cytoskeletal proteins. 20 AN ATLAS OF DROSOPHILA GENES Mutant Phenotype Mutations in Act88F affect only the development of indirect flight muscles, and mutants are viable (Karlik et al. 1984; Mahaffey et al. 1985; Okamoto et al. 1986). Some mutations, such as Act88F KM88 and Act88FKM129, are recessive hypomorphs producing severely altered proteins that fail to accumulate.
An Atlas of Drosophila Genes: Sequences and Molecular Features by Gustavo Maroni