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PMID:2472352
| Citation |
Frenkel, MJ, Powell, BC, Ward, KA, Sleigh, MJ and Rogers, GE (1989) The keratin BIIIB gene family: isolation of cDNA clones and structure of a gene and a related pseudogene. Genomics 4:182-91 |
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| Abstract |
The nucleotide sequence of cDNA clones encoding the three major BIIIB high-sulfur wool keratin proteins (BIIIB2, 3, and 4) and the structure of a BIIIB4 gene and a BIIIB3 pseudogene are reported. Although Southern blot analysis indicates that the BIIIB genes comprise a multigene family in the sheep genome, they are poorly represented in genomic DNA libraries. The family sequence homology of the coding region extends into the 5' and 3' untranslated regions and the near 5' flanking region of the BIIIB3 and 4 genes. These homologies suggest that the BIIIB3 and 4 genes represent the latest gene duplication event in the evolution of the BIIIB multigene family. Like the genes coding for other wool keratin matrix protein components, the BIIIB genes have the conserved 18-bp sequence immediately 5' to the initiation codon and also appear to lack introns. |
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| Keywords |
Amino Acid Sequence; Animals; Base Sequence; Cloning, Molecular; DNA/isolation & purification; Genes; Keratins/genetics; Molecular Sequence Data; Pseudogenes; Sequence Homology, Nucleic Acid; Sheep; Wool |
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Significance
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| Gene product | Qualifier | GO Term | Evidence Code | with/from | Aspect | Extension | Notes | Status |
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