6533b834fe1ef96bd129d5ad
RESEARCH PRODUCT
Human type I cytokeratin genes are a compact cluster
N. CerattoJean Jacques CassimanX.-l. YaoEdmund C. JenkinsSalvatore FeoPaolo BoscoM.s. AlyValentino RomanoRudolf E. LeubeM. CarterCarl DobkinL. Langbeinsubject
Genetic LinkageLocus (genetics)BiologyPolymerase Chain ReactionRestriction mapGene mappingGene clusterGeneticsHumansGenomic libraryCloning MolecularChromosomes Artificial YeastMolecular BiologyIn Situ Hybridization FluorescenceGenetics (clinical)Southern blotGeneticsBase SequenceChromosome MappingMolecular biologyChromosome 17 (human)genomic DNAMultigene FamilyKeratinsDNA ProbesChromosomes Human Pair 17description
A YAC clone (211F11) containing approximately 0.5 Mb of human DNA was isolated from a human genomic library by PCR-based screening with cytokeratin (KRT) 13-specific primers. The YAC clone was mapped by FISH to the long arm of chromosome 17 (17q12→q21), a region to which several other type I KRT genes had been mapped previously. We now show by Southern blot hybridization and PFGE analyses that KRT13, 14, 15, and 16 are all contained within YAC clone 211F11. Long-range restriction mapping analysis of clone 211F11 and of two smaller YAC clones that were also isolated with KRT13-specific primers, suggests that KRT13, 14, 15, 16 and their linked type I genes KRT17 and 19, are contained in less than 150 kb of genomic DNA. According to our reconstruction it then appears that at least six type I KRT genes are arranged in a highly compact cluster. The three YACs reported in this study represent a new tool to dissect the molecular structure of the locus of the human type I KRT genes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-01-01 |