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. 2003 Jan;185(2):669–673. doi: 10.1128/JB.185.2.669-673.2003

FIG. 1.

FIG. 1.

Multiple-sequence alignment of DHFR amino acid sequences. DHFR homologs encoded by M. extorquens AM1 are indicated in boldface. Sequences used include DfrA_Mex (M. extorquens AM1, GenBank accession no. AY093432), Dfr_Mlo (M. loti, GenBank accession no. BAB48827), Dfr_Sty(p) (S. enterica serovar Typhimurium plasmid pAZ1, AAA25550), Dfr_Lca (L. casei, GenBank accession no. P00381), Dfr_Eco(p) (E. coli plasmid pCJ001, GenBank accession no. A49788), DfrB_Mex (M. extorquens AM1, GenBank accession no. AY093433), and DmrA_Mex (putative dihydromethanopterin reductase of M. extorquens AM1, GenBank accession no. AYO93431). Alignment was constructed using Clustal W (www.es.embnet.org/Doc/phylodendron/clustal-form.html) and Shadebox (www.ch.embnet.org/software/BOX_form.html).