Abstract
The nucleotide sequence of a 20.5-kb genomic region harboring nif genes was determined and analyzed. The fragment was obtained from Frankia sp. EuIK1 strain, an indigenous symbiont of Elaeagnus umbellata. A total of 20 ORFs including 12 nif genes were identified and subjected to comparative analysis with the genome sequences of 3 Frankia strains representing diverse host plant specificities. The nucleotide and deduced amino acid sequences showed highest levels of identity with orthologous genes from an Elaeagnus-infecting strain. The gene organization patterns around the nif gene clusters were well conserved among all 4 Frankia strains. However, characteristic features appeared in the location of the nifV gene for each Frankia strain, depending on the type of host plant. Sequence analysis was performed to determine the transcription units and suggested that there could be an independent operon starting from the nifW gene in the EuIK strain. Considering the organization patterns and their total extensions on the genome, we propose that the nif gene clusters remained stable despite genetic variations occurring in the Frankia genomes.
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Allen RM, Chatterjee R, Madden MS, Ludden PW, Shah VK (1994) Biosynthesis of the iron-molybdenum cofactor of nitrogenase. Crit Rev Biotechnol 14:225–249
Altschul SF, Gish W, Miller W, Myers EW, Lipman DJ (1990) Basic local alignment search tool. J Mol Biol 215:403–410
Arnold W, Rump A, Klipp W, Priefer UB, Pühler A (1988) Nucleotide sequence of a 24,206-base-pair DNA fragment carrying the entire nitrogen fixation gene cluster of Klebsiella pneumoniae. J Mol Biol 203:715–738
Bauer CC, Scappino L, Haselkorn R (1993) Growth of the cyanobacterium Anabaena on molecular nitrogen: NifJ is required when iron is limited. Proc Natl Acad Sci USA 90:8812–8816
Benson DR, Silvester WB (1993) Biology of Frankia strains, actinomycete symbionts of actinorhizal plants. Microbiol Rev 57:293–319
Benson DR, Vanden Heuvel BD, Potter D (2004) Actinorhizal symbioses: diversity and biogeography. In: Gillings M (ed) Plant microbiology. BIOS Scientific Publishers Ltd, Oxford
Beynon J, Ally A, Cannon M, Cannon F, Jacobson M, Cash V, Dean D (1987) Comparative organization of nitrogen fixation-specific genes from Azotobacter vinelandii and Klebsiella pneumoniae: DNA sequence of the nifUSV genes. J Bacteriol 169:4024–4029
Bibb MJ, Findlay PR, Johnson MW (1984) The relationship between base composition and codon usage in bacterial genes and its use for the simple and reliable identification of protein-coding sequences. Gene 30:157–166
Dean DR, Bolin JT, Zheng L (1993) Nitrogenase metalloclusters: structures, organization, and synthesis. J Bacteriol 175:6737–6744
Dombrecht B, Tesfay MZ, Verreth C, Heusdens C, Nápoles MC, Vanderleyden J, Michiels J (2002) The Rhizobium etli gene iscN is highly expressed in bacteroids and required for nitrogen fixation. Mol Genet Genomics 267:820–828
Dos Santos PC, Dean DR, Hu Y, Ribbe MW (2004) Formation and insertion of the nitrogenase iron-molybdenum cofactor. Chem Rev 104:1159–1173
Dos Santos PC, Johnson DC, Ragle BE, Unciuleac MC, Dean DR (2007) Controlled expression of nif and isc iron-sulfur protein maturation components reveals target specificity and limited functional replacement between the two systems. J Bacteriol 189:2854–2862
Fischer HM (1994) Genetic regulation of nitrogen fixation in rhizobia. Microbiol Rev 58:352–386
Gouy M, Gautier C (1982) Codon usage in bacteria: correlation with gene expressivity. Nucleic Acids Res 10:7055–7074
Howard JB, Rees DC (1996) Structural basis of biological nitrogen fixation. Chem Rev 96:2965–2982
Hu Y, Fay AW, Lee CC, Yoshizawa J, Ribbe MW (2008) Assembly of nitrogenase MoFe protein. Biochemistry 47:3973–3981
Huang TC, Lin RF, Chu MK, Chen HM (1999) Organization and expression of nitrogen-fixation genes in the aerobic nitrogen-fixing unicellular cyanobacterium Synechococcus sp. strain RF-1. Microbiology 145:743–753
Jacobson MR, Brigle KE, Bennett LT, Setterquist RA, Wilson MS, Cash VL, Beynon J, Newton WE, Dean DR (1989) Physical and genetic map of the major nif gene cluster from Azotobacter vinelandii. J Bacteriol 171:1017–1027
Johnson DC, Dean DR, Smith AD, Johnson MK (2005) Structure, function, and formation of biological iron-sulfur clusters. Annu Rev Biochem 74:247–281
Kim HB, An CS (1997) Nucleotide sequence and expression of nifHD from Frankia strain EuIK1, a symbiont of Elaeagnus umbellata. Physiol Plant 99:690–695
Kim SC, Ku CD, Park MC, Kim CH, Song SD, An CS (1993) Isolation of symbiotic Frankia EuIK1 strain from root nodule of Elaeagnus umbellata. Korean J Bot 36:177–182
Kim HB, Kim CH, Song SD, An CS (1994) Molecular cloning of nifH,D from Frankia EuIK1 strain, a symbiont of Elaeagnus umbellata root nodules. Korean J Microbiol 32:258–263
Leimkühler S, Wuebbens MM, Rajagopalan KV (2001) Characterization of Escherichia coli MoeB and its involvement in the activation of molybdopterin synthase for the biosynthesis of the molybdenum cofactor. J Biol Chem 276:34695–34701
Normand P, Lapierre P, Tisa LS, Gogarten JP, Alloisio N, Bagnarol E, Bassi CA, Berry AM, Bickhart DM, Choisne N, Couloux A, Cournoyer B, Cruveiller S, Daubin V, Demange N, Francino MP, Goltsman E, Huang Y, Kopp OR, Labarre L, Lapidus A, Lavire C, Marechal J, Martinez M, Mastronunzio JE, Mullin BC, Niemann J, Pujic P, Rawnsley T, Rouy Z, Schenowitz C, Sellstedt A, Tavares F, Tomkins JP, Vallenet D, Valverde C, Wall LG, Wang Y, Medigue C, Benson DR (2007) Genome characteristics of facultatively symbiotic Frankia sp. strains reflect host range and host plant biogeography. Genome Res 17:7–15
Oh BS, Twigg PG, Hong JS, Mullin BC, An CS (1997) nifV is contiguous to nifHDK in Frankia strain FaC1. Physiol Plant 99:707–713
Oh CJ, Kim HB, An CS (2003) Molecular cloning and complementation analysis of nifV gene from Frankia EuIK1 strain. Mol Cells 15:27–33
Olson JW, Agar JN, Johnson MK, Maier RJ (2000) Characterization of the NifU and NifS Fe-S cluster formation proteins essential for viability in Helicobacter pylori. Biochemistry 39:16213–16219
Ouzounis C, Bork P, Sander C (1994) The modular structure of NifU proteins. Trends Biochem Sci 19:199–200
Park JH, Dorrestein PC, Zhai H, Kinsland C, McLafferty FW, Begley TP (2003) Biosynthesis of the thiazole moiety of thiamin pyrophosphate (vitamin B1). Biochemistry 42:12430–12438
Schmitz O, Kentemich T, Zimmer W, Hundeshagen B, Bothe H (1993) Identification of the nifJ gene coding for pyruvate: ferredoxin oxidoreductase in dinitrogen-fixing cyanobacteria. Arch Microbiol 160:62–67
Smith AD, Jameson GN, Dos Santos PC, Agar JN, Naik S, Krebs C, Frazzon J, Dean DR, Huynh BH, Johnson MK (2005) NifS-mediated assembly of [4Fe-4S] clusters in the N- and C-terminal domains of the NifU scaffold protein. Biochemistry 44:12955–12969
Souza AL, Invitti AL, Rego FG, Monteiro RA, Klassen G, Souza EM, Chubatsu LS, Pedrosa FO, Rigo LU (2010) The involvement of the nif-associated ferredoxin-like genes fdxA and fdxN of Herbaspirillum seropedicae in nitrogen fixation. J Microbiol 48:77–83
Stricker O, Masepohl B, Klipp W, Böhme H (1997) Identification and characterization of the nifV-nifZ-nifT gene region from the filamentous cyanobacterium Anabaena sp. strain PCC 7120. J Bacteriol 179:2930–2937
Urbina HD, Silberg JJ, Hoff KG, Vickery LE (2001) Transfer of sulfur from IscS to IscU during Fe/S cluster assembly. J Biol Chem 276:44521–44526
Van der Horn PB, Backstrom AD, Stewart V, Begley TP (1993) Structural genes for thiamine biosynthetic enzymes (thiCEFGH) in Escherichia coli K-12. J Bacteriol 175:982–992
Yan Y, Yang J, Dou Y, Chen M, Ping S, Peng J, Lu W, Zhang W, Yao Z, Li H, Liu W, He S, Geng L, Zhang X, Yang F, Yu H, Zhan Y, Li D, Lin Z, Wang Y, Elmerich C, Lin M, Jin Q (2008) Nitrogen fixation island and rhizosphere competence traits in the genome of root-associated Pseudomonas stutzeri A1501. Proc Natl Acad Sci USA 105:7564–7569
Yoo WY, Sung SB, An CS (1999) Nucleotide sequences of the 2-oxoacid ferredoxin oxidoreductase and ferredoxin genes from Frankia strain EuIK1, a symbiont of Elaeagnus umbellata root nodule. Can J Bot 72:1279–1286
Acknowledgments
This research was supported in part by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (grant No. 2009-0076694) to C.S. An. In addition, C.J. Oh was supported by the BK21 Post-Doctoral Research fellowship from the Ministry of Education, Science and Technology.
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Communicated by Erko Stackebrandt.
Chang Jae Oh and Ho Bang Kim are equally contributed to this work.
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Oh, C.J., Kim, H.B., Kim, J. et al. Organization of nif gene cluster in Frankia sp. EuIK1 strain, a symbiont of Elaeagnus umbellata . Arch Microbiol 194, 29–34 (2012). https://doi.org/10.1007/s00203-011-0732-7
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DOI: https://doi.org/10.1007/s00203-011-0732-7