A gene for recessive nonsyndromic sensorineural deafness (DFNB18) maps to the chromosomal region 11p14-p15.1 containing the Usher syndrome type 1C gene

Autosomal recessive nonsyndromic sensorineural deafness segregating in a large consanguineous Indian family was mapped to chromosome 11p14-p15.1 defining a new locus, DFNB18. A maximum lod score of 4.4 at theta = 0 was obtained for the polymorphic micro-satellite marker D11S1888. Haplotype analysis localizes this gene between markers D11S1307 and D11S2368, which is approximately 1.6 cM and encompasses the region of Usher syndrome type 1C (USH1C). We postulate that DFNB18 and USH1C are allelic variants of the same gene.

The largest subunit of mouse RNA polymerase II (RPB1) functionally substituted for its yeast counterpart in vivo

The full-length mouse RNA polymerase II (pol II) largest subunit (RPB1) gene was used to replace 5070 bp of the yeast Saccharomyces cerevisiae RPB1 gene via homologous recombination and gene replacement in vivo. Transcription of the mouse RPB1 gene using the yeast promoter in the haploid state was confirmed by Northern analysis. This strain of yeast is viable, indicating that mouse RPB1 is able to interact functionally with the other yeast RNA pol II subunits in vivo.