Figure 1

Phylogenetic tree of peptidases from the MEROPS peptidase family G1. The archaeal G1 peptidases are highlighted in rose. The fungal G1 peptidase cluster is highlighted in different shades of blue, and the major fungal clusters are labeled A, B and C. All annotated and putative family G1 peptidases (except for non-peptidase homologs) at the MEROPS peptidase database (version 9.1) were aligned using ClustalX version 2.0.11. The bootstrapped maximum likelihood tree was built using PhyML 3.0 aLRT [31] and visualized in TreeView [32]. The tree was bootstrapped with 100 iterations and bootstrap values are indicated on the figure. All GenBank accession numbers and detailed information on the members of each cluster can be found in Additional file 1 Table S1. Asa: [GenBank: YP_003816089] from Acidilobus saccharovorans; Ame: [GenBank: YP_003762485] from Amycolatopsis mediterranei; Bin: [GenBank: ACB95479] from Beijerinckia indica; Bvi: [GenBank: ABO59772] from Burkholderia vietnamiensis; Cat: [GenBank: YP_003114490] from Catenulispora acidiphila; Ckl: [GenBank: BAH07727] from Clostridium kluyveri; Cma: [GenBank: ABW02092] from Caldivirga maquilingensis; Geo: [GenBank: YP_003244752] from Geobacillus sp. Y412MC10; PepG1: [GenBank: HM011103] from Alicyclobacillus sp. DSM 15716; Rsa_1: [GenBank: ABY24309] from Renibacterium salmoninarum; Rsa_2: [GenBank: ABY21885] from Renibacterium salmoninarum.