 
          Computational Molecular Biology 2016, Vol.6, No.4, 1-12
        
        
        
          10
        
        
          Acknowledgements
        
        
          BP was supported by the College of Graduate Studies, Youngstown State University (YSU), VA and JM were
        
        
          supported by the Center for Applied Chemical Biology, YSU. The work is also supported by a Research
        
        
          Professorship to XM by YSU.
        
        
          Table 3 Comparison of protein families in secretomes of three protist species having different lifestyles
        
        
          PFam ID
        
        
          D. discoideum P. infestans T. cruzi
        
        
          PFam
        
        
          Description
        
        
          pfam11912
        
        
          52
        
        
          0
        
        
          0
        
        
          DUF3430
        
        
          Protein of unknown function (DUF3430)
        
        
          pfam09478
        
        
          44
        
        
          0
        
        
          0
        
        
          CBM49
        
        
          Carbohydrate binding domain CBM49
        
        
          pfam00112
        
        
          16
        
        
          8
        
        
          23
        
        
          Peptidase_C1
        
        
          Papain family cysteine protease
        
        
          pfam03265
        
        
          9
        
        
          1
        
        
          0
        
        
          DNase_II
        
        
          Deoxyribonuclease II
        
        
          pfam02221
        
        
          8
        
        
          0
        
        
          0
        
        
          E1_DerP2_DerF2  ML domain
        
        
          pfam07691
        
        
          8
        
        
          2
        
        
          0
        
        
          PA14
        
        
          PA14 domain
        
        
          pfam04562
        
        
          7
        
        
          0
        
        
          0
        
        
          Dicty_spore_N
        
        
          Dictyostelium spore coat protein
        
        
          pfam04916
        
        
          7
        
        
          0
        
        
          0
        
        
          Phospholip_B
        
        
          Phospholipase B
        
        
          pfam10500
        
        
          7
        
        
          0
        
        
          0
        
        
          SR-25
        
        
          Nuclear RNA-splicing-associated protein
        
        
          pfam00144
        
        
          6
        
        
          0
        
        
          0
        
        
          Beta-lactamase
        
        
          Beta-lactamase
        
        
          pfam00383
        
        
          6
        
        
          0
        
        
          2
        
        
          dCMP_cyt_deam_1  Cytidine and deoxycytidylate deaminase
        
        
          pfam00759
        
        
          6
        
        
          0
        
        
          0
        
        
          Glyco_hydro_9
        
        
          Glycosyl hydrolase family 9
        
        
          pfam05577
        
        
          6
        
        
          1
        
        
          5
        
        
          Peptidase_S28
        
        
          Serine carboxypeptidase S28
        
        
          pfam09286
        
        
          6
        
        
          0
        
        
          0
        
        
          Pro-kuma_activ
        
        
          Pro-kumamolisin
        
        
          pfam00964
        
        
          0
        
        
          39
        
        
          0
        
        
          Elicitin
        
        
          Elicitin
        
        
          pfam16810
        
        
          0
        
        
          36
        
        
          0
        
        
          RXLR
        
        
          RXLR phytopathogen effector protein
        
        
          pfam05630
        
        
          0
        
        
          24
        
        
          0
        
        
          NPP1
        
        
          Necrosis inducing protein (NPP1)
        
        
          pfam09461
        
        
          0
        
        
          22
        
        
          0
        
        
          PcF
        
        
          Phytotoxin PcF protein
        
        
          pfam00089
        
        
          0
        
        
          17
        
        
          0
        
        
          Trypsin
        
        
          Trypsin
        
        
          pfam00188
        
        
          3
        
        
          14
        
        
          0
        
        
          CAP
        
        
          Cysteine-rich secretory protein family
        
        
          pfam00295
        
        
          0
        
        
          14
        
        
          0
        
        
          Glyco_hydro_28
        
        
          Glycosyl hydrolases family 28
        
        
          pfam03211
        
        
          0
        
        
          14
        
        
          0
        
        
          Pectate_lyase
        
        
          Pectate lyase
        
        
          pfam05642
        
        
          0
        
        
          12
        
        
          1
        
        
          Sporozoite_P67
        
        
          Sporozoite P67 surface antigen
        
        
          pfam13091
        
        
          1
        
        
          10
        
        
          0
        
        
          PLDc_2
        
        
          PLD-like domain
        
        
          pfam00588
        
        
          0
        
        
          8
        
        
          1
        
        
          SpoU_methylase
        
        
          SpoU rRNA Methylase family
        
        
          pfam16656
        
        
          3
        
        
          7
        
        
          0
        
        
          Pur_ac_phosph_N  Purple acid Phosphatase
        
        
          pfam00050
        
        
          0
        
        
          7
        
        
          0
        
        
          Kazal_1
        
        
          Kazal-type serine protease inhibitor domain
        
        
          pfam00264
        
        
          0
        
        
          7
        
        
          0
        
        
          Tyrosinase
        
        
          Common central domain of tyrosinase
        
        
          pfam02055
        
        
          0
        
        
          7
        
        
          0
        
        
          Glyco_hydro_30
        
        
          O-Glycosyl hydrolase family 30
        
        
          pfam03639
        
        
          0
        
        
          7
        
        
          0
        
        
          Glyco_hydro_81
        
        
          Glycosyl hydrolase family 81
        
        
          pfam01565
        
        
          3
        
        
          6
        
        
          0
        
        
          FAD_binding_4
        
        
          FAD binding domain
        
        
          pfam04147
        
        
          1
        
        
          6
        
        
          45
        
        
          Nop14
        
        
          Nop14-like family
        
        
          pfam00194
        
        
          0
        
        
          6
        
        
          0
        
        
          Carb_anhydrase
        
        
          Eukaryotic-type carbonic anhydrase
        
        
          pfam01083
        
        
          0
        
        
          6
        
        
          0
        
        
          Cutinase
        
        
          Cutinase
        
        
          pfam01095
        
        
          0
        
        
          6
        
        
          0
        
        
          Pectinesterase
        
        
          Pectinesterase
        
        
          pfam01670
        
        
          0
        
        
          6
        
        
          0
        
        
          Glyco_hydro_12
        
        
          Glycosyl hydrolase family 12
        
        
          pfam01456
        
        
          0
        
        
          0
        
        
          345
        
        
          Mucin
        
        
          Mucin-like glycoprotein
        
        
          pfam13859
        
        
          0
        
        
          0
        
        
          198
        
        
          BNR_3
        
        
          BNR repeat-like domain
        
        
          pfam01457
        
        
          1
        
        
          0
        
        
          102
        
        
          Peptidase_M8
        
        
          Leishmanolysin
        
        
          pfam12517
        
        
          0
        
        
          0
        
        
          90
        
        
          DUF3720
        
        
          Protein of unknown function (DUF3720)
        
        
          pfam05086
        
        
          0
        
        
          0
        
        
          57
        
        
          Dicty_REP
        
        
          Dictyostelium (Slime Mold) REP protein
        
        
          pfam12446
        
        
          0
        
        
          0
        
        
          50
        
        
          DUF3682
        
        
          Protein of unknown function (DUF3682)
        
        
          pfam01762
        
        
          0
        
        
          1
        
        
          41
        
        
          Galactosyl_T
        
        
          Galactosyltransferase
        
        
          pfam01299
        
        
          4
        
        
          0
        
        
          21
        
        
          Lamp
        
        
          Lysosome-associated membrane glycoprotein
        
        
          pfam00183
        
        
          1
        
        
          0
        
        
          18
        
        
          HSP90
        
        
          Hsp90 protein