Table 2.

Location of putative coiled-coil regions in phage serine integrases

Origin of integrase	Size (aa)	Predicted coiled-coil region(s)a	Region size (aa)	Accession number
Phage ϕC31	605	452–480/489–518	28/29	NP047974
Phage TG1	606	463–497/506–533	34/27	BAF03600
Phage Bcep22	518	350–387/390–423	37/33	AAQ54941
Phage U153	453	337–366/374–424	29/50	CAD10283
Prophage CP-933X	508	367–398 400–427	31/27	NP287356
Phage ϕFC1	464	343–370/385–423	27/35	AAD26564
Phage ϕ105	477	358–385/388–415	27/27	NP690785
Phage TP91	398	284–314/316–350	30/34	CAA72268
Phage SPBc2	549	398–426/444–475	28/31	NP046553
Phage 370	476	385–412	27	NP606888
Phage TP901-1	487	405–434	29	NP112664
Phage ϕK381	552	427–455	28	BAF03598
Phage ϕBT1	594	435–469	34	NP813744
Phage ϕRv1	469	346–380	34	NP216102

^aBold values indicates a high probability of forming a coiled-coil structure based on the COILS programme (42).