6533b856fe1ef96bd12b1eff
RESEARCH PRODUCT
Molecular cloning and nucleotide sequence of chicken avidin-related genes 1-5.
Riitta A. KeinänenPaula KristoMika J. WallénMarkku S. KulomaaMarkku S. KulomaaTarja ToimelaMerja HeleniusMikko O. Laukkanensubject
StreptavidinTranscription GeneticMolecular Sequence DataRestriction MappingBiotinBiologyMolecular cloningBiochemistryPolymerase Chain Reactionchemistry.chemical_compoundstomatognathic systemBacterial ProteinsIn vivoComplementary DNASequence Homology Nucleic AcidAnimalsAmino Acid SequenceCloning MolecularProtein PrecursorsGeneConserved SequenceRegulation of gene expressionGeneticsSequence Homology Amino AcidNucleic acid sequenceDNAExonsAvidinRecombinant Proteinschemistrybiology.proteinStreptavidinChickensPseudogenesAvidindescription
Using avidin cDNA as a hybridisation probe, we detected a gene family whose putative products are related to the chicken egg-white avidin. Two overlapping genomic clones were found to contain five genes (avidin-related genes 1–5, avrl-avr5), which have been cloned, characterized and sequenced. All of the genes have a four-exon structure with an overall identity with the avidin cDNA of 88–92%. The genes appear to have no pseudogenic features and, in fact, two of these genes have been shown to be transcribed. The putative proteins share a sequence identity of 68–78% with avidin. The amino acid residues responsible for the biotin-binding activity of avidin and the bacterial biotin-binding protein, streptavidin, are highly conserved. Since avidin is induced in both a progesterone-specific manner and in connection with inflammation, these genes offer a valuable tool to study complex gene regulation in vivo.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-03-01 | European journal of biochemistry |