Bacteria	-	703211	
Crenothrix polyspora	protein A fragment, gene pmoA; a gammaproteobacterium closely related to methanotrophs	676844	
Methylobacterium sp.	-	438926, 438932	
Methyloceanibacter methanicus	-	744797	
Methyloceanibacter methanicus R-67174	-	744797	
Methylococcus capsulatus	-	438942, 658632, 671722, 672049, 673999, 674145, 674158, 674170, 701759, 706752, 711260, 744688, 745389, 745730, 746420	
Methylococcus capsulatus	alpha subunit and beta subunit and gamma subunit	726546, 728376	
Methylococcus capsulatus	Bath	438920, 438922, 438923, 438928, 438929, 438930, 438931, 438932, 438936, 438937, 438938, 438939, 438943, 438949, 658051	
Methylococcus capsulatus	enzyme form sMMO	438945, 438949	
Methylococcus capsulatus	HD6T	701759