title: The Drosophila melanogaster similar bHLH-PAS gene encodes a protein related to human hypoxia-inducible factor 1 alpha and Drosophila single-minded.
abstract: The Drosophila melanogaster (Dm) similar (sima) gene was isolated using a low-stringency hybridization screen employing a Dm single-minded gene basic helix-loop-helix (bHLH) DNA probe. sima is a member of the bHLH-PAS gene family and the conceptual protein shares a number of structural features, including a bHLH domain, PAS domain, and homopolymeric amino acid stretches. Sima is most closely related to the human hypoxia-inducible factor 1 alpha bHLH-PAS protein. In situ hybridization experiments reveal that sima is transcribed in most or all cells throughout embryogenesis. It has been cytologically mapped to position 99D on the third chromosome, and is not closely linked to other known bHLH-PAS genes.
authors.affiliation: Department of Biochemistry and Biophysics, School of Medicine, University of North Carolina at Chapel Hill 27599-7260, USA.
authors.forename: J R
authors.initials: JR
authors.lastname: Nambu
authors.forename: W
authors.initials: W
authors.lastname: Chen
authors.forename: S
authors.initials: S
authors.lastname: Hu
authors.forename: S T
authors.initials: ST
authors.lastname: Crews
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D051792:Basic Helix-Loop-Helix Proteins; D002874:Chromosome Mapping; D004247:DNA; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics*; D029721:Drosophila Proteins; D004331:Drosophila melanogaster / Q000235:genetics* / Q000378:metabolism; D015870:Gene Expression; D017344:Genes, Insect; D006801:Humans; D051793:Hypoxia-Inducible Factor 1; D051795:Hypoxia-Inducible Factor 1, alpha Subunit; D008969:Molecular Sequence Data; D009687:Nuclear Proteins / Q000737:chemistry; D010802:Phylogeny; D017386:Sequence Homology, Amino Acid; D014157:Transcription Factors / Q000737:chemistry / Q000235:genetics*
chemical_list: D051792:Basic Helix-Loop-Helix Proteins; D004247:DNA; D004268:DNA-Binding Proteins; D029721:Drosophila Proteins; D051793:Hypoxia-Inducible Factor 1; D051795:Hypoxia-Inducible Factor 1, alpha Subunit; D009687:Nuclear Proteins; D014157:Transcription Factors; C497442:HIF1A protein, human; C100429:Sima protein, Drosophila; C089449:sim protein, Drosophila