6533b7d0fe1ef96bd125a368

RESEARCH PRODUCT

Organization and expression of the chum salmon insulin-like growth factor II gene

John S. SussenbachWerner E.g. MüllerAlexey Y. PalamarchukVadim M. KavsanP. Elly Holthuizen

subject

Untranslated regionBase pairMolecular Sequence DataBiophysicsBiologyTransfectionPolymerase Chain ReactionBiochemistryExonSalmonStructural BiologyGene expressionTumor Cells CulturedGeneticsAnimalsHumansProtein PrecursorsPromoter Regions GeneticInsulin-like growth factor IIMolecular BiologyGeneDNA PrimersGeneticsRegulation of gene expressionchemistry.chemical_classificationBase SequencefungiExonsCell BiologyTransfectionRecombinant ProteinsAmino acidGene structureOncorhynchus ketaFishGene Expression RegulationchemistryOncorhynchus mykissGene expression

description

AbstractIGF-II plays an important role in growth and development of vertebrates. In the present study, the characterization of the first fish IGF-II gene, chum salmon IGF-II, is described. The sIGF-II gene consists of four exons, spanning a region of 9 kbp, that encode the 214 aa IGF-II precursor. While the amino acid sequences of fully processed IGF-II of salmon and mammalian species are very similar, the prepro-peptide sequence deviates extensively in the signal- and E-peptide domains. The transcription initiation site of the sIGF-II gene was localized within a 30 nt region employing RT-PCR. Using sIGF-II promoter-luciferase constructs it was demonstrated that the sIGF-II gene has a relatively strong promoter that contains tissue-specific regulatory elements.

https://doi.org/10.1016/s0014-5793(97)01217-9