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Gene Review:

xylX - xylX

Pseudomonas putida

Harayama, S. et al., Harayama, S. et al., Harayama, S. et al.

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Disease relevance of xylX

Examination of the products of these cistrons, by means of E. coli minicells containing pPL392 or its Tn1000 insertion derivatives, indicated that the first two cistrons of the operon comprise a single gene, xylX, which encodes a 57 kilodalton protein, and that the third cistron, xylY, encodes a 20 kilodalton protein [1].

High impact information on xylX

Usage of the unusual arginine codons AGA and AGG appears to have been selected in the P. putida xylX gene as it diverged from the ancestor it shared with A. calcoaceticus benA [2].
Homologous A. calcoaceticus and P. putida genes exhibit different patterns of DNA sequence repetition, and analysis of one such pattern suggests that mutations creating different DNA slippage structures made a significant contribution to the evolutionary divergence of xylX [2].
The comparison of the coding capacity and the sizes of the products of the meta-cleavage operon genes indicated that most of the DNA between xylX and xylH consists of coding sequences [3].

References

Genetic analysis of a relaxed substrate specificity aromatic ring dioxygenase, toluate 1,2-dioxygenase, encoded by TOL plasmid pWW0 of Pseudomonas putida. Harayama, S., Rekik, M., Timmis, K.N. Mol. Gen. Genet. (1986) [Pubmed]
Potential DNA slippage structures acquired during evolutionary divergence of Acinetobacter calcoaceticus chromosomal benABC and Pseudomonas putida TOL pWW0 plasmid xylXYZ, genes encoding benzoate dioxygenases. Harayama, S., Rekik, M., Bairoch, A., Neidle, E.L., Ornston, L.N. J. Bacteriol. (1991) [Pubmed]
The meta cleavage operon of TOL degradative plasmid pWW0 comprises 13 genes. Harayama, S., Rekik, M. Mol. Gen. Genet. (1990) [Pubmed]

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