Open AccessStructure and organization of the hisA gene of the thermophilic archaebacterium Methanococcus thermolithotrophicus
Author(s) -
Clifford F. Weil,
Gregory S. Beckler,
John N. Reeve
Publication year - 1987
Publication title -
journal of bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.652
H-Index - 246
eISSN - 1067-8832
pISSN - 0021-9193
DOI - 10.1128/jb.169.10.4857-4860.1987
Subject(s) - methanococcus , biology , orfs , open reading frame , gene , genetics , methanogen , plasmid , genome , gene cluster , dna , thermophile , escherichia coli , nucleic acid sequence , restriction map , base pair , microbiology and biotechnology , peptide sequence , bacteria
A restriction fragment of Methanococcus thermolithotrophicus genomic DNA was cloned into pUC8 to produce plasmid pET9301, which complements mutations in the hisA gene of Escherichia coli. Sequencing the DNA (2,155 base pairs) cloned from this thermophilic methanogen demonstrated that the M. thermolithotrophicus hisA gene is located within a cluster of open reading frames (ORFs) and is 68 and 69% homologous at the nucleotide level to the hisA genes of the mesophilic methanococci M. voltae and M. vannielii, respectively. The ORF (ORF 206) immediately 5' to the hisA gene of M. thermolithotrophicus is partially deleted in the genomes of the two mesophilic species, whereas ORF 114, which is 5' to ORF 206, is conserved in all three species.