Table 7.

Clusters of β-barrel representing sequences.

Pfam nomenclature for β-barrel domain	Cluster	Strain		Orders*		Sequences
(Glucose selective) OprB	9	7	58	2	6	8	295
	20	9		2		15
	21	58		6		274
Omp85	10	58		6		155
LptD (DUF3769)	7	56		6		56
TonB_dep_Rec/TBDT	6	22		6		124
OmpA_Pfam/OMPdb	11	14	20	5	5	15	27
	14	3		3		5
	16	7		2		7
Omp_β-brl	13	7	17	4	5	10	27
	15	9		1		11
	18	5		4		6
DUF3442 Intimin/Invasin	3	5	16	2	3	6	32
	4	3		3		6
	5	10		2		20
Fasciclin	17	5		3		5
DUF481a	1	4	15	1	2	6	17
	8	11		2		11
OmpW	19	5		2		5
Cellulose synthesis complex barrel/BcsC	2	5		2		5
Autotransporter	12	4		1		5

Shown are the names of the Pfam domains characteristic for the β-barrel families (column 1), the number of the cluster according to Additional File 11 in Supplementary Material (column 2), number of strains of which a sequence is present in the cluster (column 3) or in all clusters of the same family (column 4), the number of orders of which sequences are in the cluster (column 5) or in all clusters of the same family (column 6), and the number of different sequences in the cluster (column 7) or in all clusters of the same family (column 8).

^*Orders: Chroococcales, Gloeobacterales, Nostocales, Oscillatoriales, Prochlorales, Stigonematales.

^aDUF, domain of unknown function.