A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Reference Report

Reference
Citation Xie, W., Birchler, J.A. (2012). Identification of Inverse Regulator-a (Inr-a) as Synonymous with Pre-mRNA Cleavage Complex II Protein (Pcf11) in Drosophila.  G3 (Bethesda) 2(6): 701--706. (Export to RIS)
FlyBase ID FBrf0218562
Publication Type Research paper
PubMed ID 22690379
PubMed Abstract A common modulation of gene expression in aneuploids is an inverse correlation of the monitored gene with the dosage of another segment of the genome. Such effects can be reduced to the action of single genes. One gene previously found to modulate leaky alleles of the white eye color gene in Drosophila is Inverse regulator-a (Inr-a). Heterozygotes of mutations increase the expression of white about 2-fold, and trisomic regions surrounding the gene reduce the expression to about two-thirds of the normal diploid level. Further cytological definition of the location of this gene on the second chromosome led to a candidate pre-mRNA cleavege complex II protein (Pcf11) as the only gene in the remaining region whose mutations exhibit recessive lethality as do alleles of Inr-a. The product of Pcf11 has been implicated in transcriptional initiation, elongation, and termination reactions. Four mutant alleles showed molecular lesions predicted to lead to nonfunctional products of Pcf11. The identification of the molecular lesion of Inr-a provides insight into the basis of this common aneuploidy effect.
DOI 10.1534/g3.112.002071
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Language of Publication English
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Publication Type Journal
Abbreviation G3 (Bethesda)
Title G3 : genes - genomes - genetics
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ISBN/ISSN 2160-1836
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