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Gene Review

nolL  -  nodulation protein NolL

Sinorhizobium fredii NGR234

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Disease relevance of nolL

  • NolL of Rhizobium sp. strain NGR234 is required for O-acetyltransferase activity [1].

High impact information on nolL

  • We show that the NolL-dependent acetylation is specific for the fucosyl penta-N-acetylglucosamine species [2].
  • This explained various responses of lupins and serradella plants to infection by mutants in nodZ and nolL genes, knowing that serradella is a stringent legume while lupins are more promiscuous legumes [3].

Analytical, diagnostic and therapeutic context of nolL

  • It has been claimed, based on sequence analysis, that NolL from R. loti participates in the 4-O-acetylation of the fucosyl residue of the Nod factors, as an acetyl-transferase (D. B. Scott, C. A. Young, J. M. Collins-Emerson, E. A. Terzaghi, E. S. Rockman, P. A. Lewis, and C. E. Pankhurst. Mol. Plant-Microbe Interact. 9:187-197, 1996) [4].


  1. NolL of Rhizobium sp. strain NGR234 is required for O-acetyltransferase activity. Berck, S., Perret, X., Quesada-Vincens, D., Promé, J., Broughton, W.J., Jabbouri, S. J. Bacteriol. (1999) [Pubmed]
  2. A Lotus japonicus nodulation system based on heterologous expression of the fucosyl transferase NodZ and the acetyl transferase NoIL in Rhizobium leguminosarum. Pacios Bras, C., Jordá, M.A., Wijfjes, A.H., Harteveld, M., Stuurman, N., Thomas-Oates, J.E., Spaink, H.P. Mol. Plant Microbe Interact. (2000) [Pubmed]
  3. Low sequence similarity and gene content of symbiotic clusters of Bradyrhizobium sp. WM9 (Lupinus) indicate early divergence of "lupin" lineage in the genus Bradyrhizobium. Stepkowski, T., Swiderska, A., Miedzinska, K., Czaplińska, M., Swiderski, M., Biesiadka, J., Legocki, A.B. Antonie Van Leeuwenhoek (2003) [Pubmed]
  4. The nolL gene from Rhizobium etli determines nodulation efficiency by mediating the acetylation of the fucosyl residue in the nodulation factor. Corvera, A., Promé, D., Promé, J.C., Martínez-Romero, E., Romero, D. Mol. Plant Microbe Interact. (1999) [Pubmed]
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