General features identified in the genomes of the compared methanotrophs.

1The number of CDS predicted in the genome announcement is 4,503, while the submitted sequence actually contains 4,472 CDS.2tRNA genes were identified in 16S-23S spacer region of the rRNA operons.3rRNA operon present in contig 219 (AEVM01000005).4rRNA operon present in contig 00159 (NZ_ADVE01000118).5Size of plasmids: pBSC2-1 (FO000001), 223 kb; and pBSC2-2 (FO000002), 143 kb.6NR – not reported.7Size of plasmid: MEALZ_p (FO082061), 128 kb.8Abbreviation: Clustered Regularly Interspaced Short Palindromic Repeats; identified using the online tool “CRISPR finder”.9CRISPR-associated (cas) genes were predicted using the RAST server.