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A genetic analysis of the 63E-64A genomic region of Drosophila melanogaster: identification of mutations in a replication factor C subunit.


ABSTRACT: We have performed an F2 genetic screen to identify lethal mutations within the 63E-64A genomic region. We have isolated 122 mutations in 20 different complementation groups. Of these groups, 16 are represented by multiple alleles. We have also established that the Rop and Ras2 genes are located within the 63E-64A genomic domain at 64A10,11. We have sequenced 10.2 kb of DNA surrounding this gene pair and find that in addition to Rop and Ras2 there is another gene located within this DNA sequence. The gene product, which we have named Rfc40, shows 68% identity to the 40-kDa subunit of replication factor C. We find that the members of one complementation group (13 alleles) derived from our screen correspond to mutations in the Rop gene, whereas the members of another (five alleles) correspond to mutations in the Rfc40 gene. In addition we have isolated 11 new mutant alleles of the disembodied gene.

SUBMITTER: Harrison SD 

PROVIDER: S-EPMC1206495 | biostudies-other | 1995 Apr

REPOSITORIES: biostudies-other

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A genetic analysis of the 63E-64A genomic region of Drosophila melanogaster: identification of mutations in a replication factor C subunit.

Harrison S D SD   Solomon N N   Rubin G M GM  

Genetics 19950401 4


We have performed an F2 genetic screen to identify lethal mutations within the 63E-64A genomic region. We have isolated 122 mutations in 20 different complementation groups. Of these groups, 16 are represented by multiple alleles. We have also established that the Rop and Ras2 genes are located within the 63E-64A genomic domain at 64A10,11. We have sequenced 10.2 kb of DNA surrounding this gene pair and find that in addition to Rop and Ras2 there is another gene located within this DNA sequence.  ...[more]

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