Gene Symbol: xapR
Description: transcriptional activator of xapAB
Alias: ECK2399, JW2396, pRndR, yfeB
Species: Escherichia coli str. K-12 substr. MG1655

Top Publications

  1. Brun Y, Breton R, Lanouette P, Lapointe J. Precise mapping and comparison of two evolutionarily related regions of the Escherichia coli K-12 chromosome. Evolution of valU and lysT from an ancestral tRNA operon. J Mol Biol. 1990;214:825-43 pubmed
    ..The possibility that this is the xapR gene is discussed. Comparison of the physical and linkage maps of the E...
  2. Buxton R, Hammer Jespersen K, Valentin Hansen P. A second purine nucleoside phosphorylase in Escherichia coli K-12. I. Xanthosine phosphorylase regulatory mutants isolated as secondary-site revertants of a deoD mutant. Mol Gen Genet. 1980;179:331-40 pubmed
  3. Seeger C, Poulsen C, Dandanell G. Identification and characterization of genes (xapA, xapB, and xapR) involved in xanthosine catabolism in Escherichia coli. J Bacteriol. 1995;177:5506-16 pubmed
    ..The genes xapA and xapB are located clockwise of a gene identified as xapR, which encodes a positive regulator belonging to the LysR family and is required for the expression of xapA and ..
  4. Zhao J, Niu W, Yao J, Mohr S, Marcotte E, Lambowitz A. Group II intron protein localization and insertion sites are affected by polyphosphate. PLoS Biol. 2008;6:e150 pubmed publisher
  5. Jørgensen C, Dandanell G. Isolation and characterization of mutations in the Escherichia coli regulatory protein XapR. J Bacteriol. 1999;181:4397-403 pubmed
    In this work, the LysR-type protein XapR has been subjected to a mutational analysis. XapR regulates the expression of xanthosine phosphorylase (XapA), a purine nucleoside phosphorylase in Escherichia coli...