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The Rhizobium meliloti host range nodQ gene encodes a protein which shares homology with translation elongation and initiation factors.
Author(s) -
Cervantes E.,
Sharma S. B.,
Maillet F.,
Vasse J.,
Truchet G.,
Rosenberg C.
Publication year - 1989
Publication title -
molecular microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.857
H-Index - 247
eISSN - 1365-2958
pISSN - 0950-382X
DOI - 10.1111/j.1365-2958.1989.tb00223.x
Subject(s) - biology , homology (biology) , genetics , translation (biology) , gene , eukaryotic translation , rhizobium , elongation , messenger rna , materials science , ultimate tensile strength , metallurgy
Summary The Rhizobium meliloti nod region lib is involved in host‐range determination: (i)the presence of region lib is necessary for transfer of alfalfa root hair curling ability to Rhizobium legumlnosarum biovar trifolii; (ii) a mutation in region llb extends the R. meliloti infection host range to Vicia sativa nigra; (iii) dominance of R. meliloti nod genes over R. leguminosarum biovar viciae nod genes is abolished by mutations in region llb. The nucleotide sequence of this region has been determined. Genes corresponding to the two open reading frames identified are designated nodP and nodQ. The predicted amino acid sequence of the NodQ protein shows homology with translation initiation and elongation factors. The consensus sequence involved in the GTP‐binding domain is conserved.