title: Porcine SRY gene locus and genital ridge expression.
abstract: Porcine SRY gene locus was cloned through use of a strategy of anchored polymerase chain reaction (PCR) amplification from a male pig genomic DNA size-selected library constructed in a plasmid vector as well as 3' reverse transcription (RT)-PCR amplification of porcine genital ridge SRY transcripts. In total, 1664 bp of genomic DNA and 106 bp of 3' cDNA are presented. The open reading frame of porcine SRY consists of 624 bp representing 208 amino acids (aa) with a centrally located HMG box domain of 79 aa, an amino-terminal region of 59 aa, and a carboxy terminal of 70 aa. Structurally, porcine SRY resembles human and bovine SRY more closely than it does mouse Sry, and it lacks the carboxy-terminal activation domain seen in the mouse Sry molecule. Similar to human and bovine testicular SRY transcripts, the porcine SRY genital ridge transcript has a relatively short 3' untranslated region (UTR), in contrast to the extended UTR of the mouse genital ridge Sry transcript. The porcine SRY gene is expressed within the cells of the genital ridge of the developing male pig embryo between Days 21 and 26 (e21-e26) of gestation, during which time the primitive gonads are bipotential, but not on Day e31, by which time male testis determination is histologically evident.
authors.affiliation: Department of Veterinary Biomedicine, Faculty of Veterinary Medicine, University of Montreal, St.-Hyacinthe, Québec, Canada.
authors.forename: I
authors.initials: I
authors.lastname: Daneau
authors.forename: J F
authors.initials: JF
authors.lastname: Ethier
authors.forename: J G
authors.initials: JG
authors.lastname: Lussier
authors.forename: D W
authors.initials: DW
authors.lastname: Silversides
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002417:Cattle; D004268:DNA-Binding Proteins / Q000235:genetics*; D005837:Genitalia, Male / Q000196:embryology* / Q000378:metabolism*; D006609:High Mobility Group Proteins / Q000235:genetics; D006801:Humans; D008297:Male; D051379:Mice; D008969:Molecular Sequence Data; D009687:Nuclear Proteins; D016133:Polymerase Chain Reaction; D012194:RNA-Directed DNA Polymerase; D017385:Sequence Homology; D012732:Sex Determination Analysis; D051876:Sex-Determining Region Y Protein; D013552:Swine / Q000235:genetics*; D014157:Transcription Factors
chemical_list: D004268:DNA-Binding Proteins; D006609:High Mobility Group Proteins; D009687:Nuclear Proteins; C497745:SRY protein, human; D051876:Sex-Determining Region Y Protein; C497746:Sry protein, mouse; D014157:Transcription Factors; D012194:RNA-Directed DNA Polymerase