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Conserved domains on  [gi|1873252490|ref|WP_180252467|]
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ETX/MTX2 family pore-forming toxin [Bacillus toyonensis]

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
PFM_Cry51Aa-like cd20226
pore-forming module of Bacillus thuringiensis insecticidal Cry51A toxin, Bacillus ...
34-258 2.21e-48

pore-forming module of Bacillus thuringiensis insecticidal Cry51A toxin, Bacillus thuringiensis cytotoxic parasporin-5 and similar aerolysin-type beta-barrel pore-forming proteins; Bacillus thuringiensis parasporin-5 has strong cytocidal activity against several types of cancer cells and may or may not have insecticidal activity. Cry51A toxin is toxic to coleopteran (beetle) larvae. Other members of this family include Bacillus thuringiensis Cry15Aa which is toxic to lepidopteran (butterflies and moth) larvae. They belong to the aerolysin family of beta-pore-forming proteins (beta-PFPs). PFPs are generally secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores harmful to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel, are found in all kingdoms of life and many are bacterial toxins. In addition to having a role in microbial infection, they have potential as biotechnological sensors and delivery systems. They share a similar monomeric architecture, with a variable membrane-binding domain and a structurally conserved pore-forming region. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


:

Pssm-ID: 380796 [Multi-domain]  Cd Length: 172  Bit Score: 159.36  E-value: 2.21e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  34 YTISNVSAVPAQTAFETAPVQKAASVQVLTNNTSLTQSQTLKFSEKLIESTTGSTTEGYKIGSGITSTSKFSYNVKIFAA 113
Cdd:cd20226     1 YRVSNLVAIPPDTIFNVTPGLTFSARQVITNNTSVPQSQTVSFSEKTTETTSTTTTEGYKIGTSIKSTTKFKVKFGFVVG 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490 114 NigfDQTFTVTTTGEYNHSSTETTTKTTEKLWEVTQPVTVPPYTQIVATLIILGADLQIPMRLNATLigngtefgaenly 193
Cdd:cd20226    81 G---EQSIEVSVSFEYNYSTTTTYTTTTEKLWEDTQPVTVPPRTKVTATLIIYGGPFNVPVTLNCTI------------- 144
                         170       180       190       200       210       220
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1873252490 194 caayfynpnymvqpyyagnmadrawpnrpasfiqgvySLVLQGASTTSHGPGLYAAVLFEQTPLP 258
Cdd:cd20226   145 -------------------------------------SLNFKGSGTLTGSLGLYSTVRFTEEPLP 172
 
Name Accession Description Interval E-value
PFM_Cry51Aa-like cd20226
pore-forming module of Bacillus thuringiensis insecticidal Cry51A toxin, Bacillus ...
34-258 2.21e-48

pore-forming module of Bacillus thuringiensis insecticidal Cry51A toxin, Bacillus thuringiensis cytotoxic parasporin-5 and similar aerolysin-type beta-barrel pore-forming proteins; Bacillus thuringiensis parasporin-5 has strong cytocidal activity against several types of cancer cells and may or may not have insecticidal activity. Cry51A toxin is toxic to coleopteran (beetle) larvae. Other members of this family include Bacillus thuringiensis Cry15Aa which is toxic to lepidopteran (butterflies and moth) larvae. They belong to the aerolysin family of beta-pore-forming proteins (beta-PFPs). PFPs are generally secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores harmful to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel, are found in all kingdoms of life and many are bacterial toxins. In addition to having a role in microbial infection, they have potential as biotechnological sensors and delivery systems. They share a similar monomeric architecture, with a variable membrane-binding domain and a structurally conserved pore-forming region. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


Pssm-ID: 380796 [Multi-domain]  Cd Length: 172  Bit Score: 159.36  E-value: 2.21e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  34 YTISNVSAVPAQTAFETAPVQKAASVQVLTNNTSLTQSQTLKFSEKLIESTTGSTTEGYKIGSGITSTSKFSYNVKIFAA 113
Cdd:cd20226     1 YRVSNLVAIPPDTIFNVTPGLTFSARQVITNNTSVPQSQTVSFSEKTTETTSTTTTEGYKIGTSIKSTTKFKVKFGFVVG 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490 114 NigfDQTFTVTTTGEYNHSSTETTTKTTEKLWEVTQPVTVPPYTQIVATLIILGADLQIPMRLNATLigngtefgaenly 193
Cdd:cd20226    81 G---EQSIEVSVSFEYNYSTTTTYTTTTEKLWEDTQPVTVPPRTKVTATLIIYGGPFNVPVTLNCTI------------- 144
                         170       180       190       200       210       220
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1873252490 194 caayfynpnymvqpyyagnmadrawpnrpasfiqgvySLVLQGASTTSHGPGLYAAVLFEQTPLP 258
Cdd:cd20226   145 -------------------------------------SLNFKGSGTLTGSLGLYSTVRFTEEPLP 172
ETX_MTX2 pfam03318
Clostridium epsilon toxin ETX/Bacillus mosquitocidal toxin MTX2; This family appears to be ...
57-257 1.51e-21

Clostridium epsilon toxin ETX/Bacillus mosquitocidal toxin MTX2; This family appears to be distantly related to pfam01117.


Pssm-ID: 427241 [Multi-domain]  Cd Length: 222  Bit Score: 90.54  E-value: 1.51e-21
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  57 ASVQVLTNNTSLTQ-SQTLKFSEKLIESTTGSTTEGYKIGSGITSTSKFSYnvkifaaniGFDQTFTVTTTGEYNHSST- 134
Cdd:pfam03318  31 TGSNTLTNNTDSTQtLQTQSFSKKVTTTTSTTTTHGFKIGAKASGKFGIPF---------VAEGGITLSVSGEYNFSSTt 101
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490 135 ETTTKTTEKLWEVTQPVTVPPYTQIVATLIILGADLQIPMRLNATLIGNgtefgaenlycAAYFYNPNYMVQPYYAGNMA 214
Cdd:pfam03318 102 TNTTSVTTTYWVPSQKVTVPPHTTVRVTLVLYKTTYSVPVDLYTTLSGT-----------FSIEGTRSGYVEPASYPLTA 170
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|....*
gi 1873252490 215 DraWPNRPASF--IQGVYSLVLQGASTTSHGPGLYAAVLFEQTPL 257
Cdd:pfam03318 171 S--WPLIDIIFllINSDNSVNFNGSGYFELVYGLNFTIRVTETPL 213
 
Name Accession Description Interval E-value
PFM_Cry51Aa-like cd20226
pore-forming module of Bacillus thuringiensis insecticidal Cry51A toxin, Bacillus ...
34-258 2.21e-48

pore-forming module of Bacillus thuringiensis insecticidal Cry51A toxin, Bacillus thuringiensis cytotoxic parasporin-5 and similar aerolysin-type beta-barrel pore-forming proteins; Bacillus thuringiensis parasporin-5 has strong cytocidal activity against several types of cancer cells and may or may not have insecticidal activity. Cry51A toxin is toxic to coleopteran (beetle) larvae. Other members of this family include Bacillus thuringiensis Cry15Aa which is toxic to lepidopteran (butterflies and moth) larvae. They belong to the aerolysin family of beta-pore-forming proteins (beta-PFPs). PFPs are generally secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores harmful to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel, are found in all kingdoms of life and many are bacterial toxins. In addition to having a role in microbial infection, they have potential as biotechnological sensors and delivery systems. They share a similar monomeric architecture, with a variable membrane-binding domain and a structurally conserved pore-forming region. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


Pssm-ID: 380796 [Multi-domain]  Cd Length: 172  Bit Score: 159.36  E-value: 2.21e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  34 YTISNVSAVPAQTAFETAPVQKAASVQVLTNNTSLTQSQTLKFSEKLIESTTGSTTEGYKIGSGITSTSKFSYNVKIFAA 113
Cdd:cd20226     1 YRVSNLVAIPPDTIFNVTPGLTFSARQVITNNTSVPQSQTVSFSEKTTETTSTTTTEGYKIGTSIKSTTKFKVKFGFVVG 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490 114 NigfDQTFTVTTTGEYNHSSTETTTKTTEKLWEVTQPVTVPPYTQIVATLIILGADLQIPMRLNATLigngtefgaenly 193
Cdd:cd20226    81 G---EQSIEVSVSFEYNYSTTTTYTTTTEKLWEDTQPVTVPPRTKVTATLIIYGGPFNVPVTLNCTI------------- 144
                         170       180       190       200       210       220
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1873252490 194 caayfynpnymvqpyyagnmadrawpnrpasfiqgvySLVLQGASTTSHGPGLYAAVLFEQTPLP 258
Cdd:cd20226   145 -------------------------------------SLNFKGSGTLTGSLGLYSTVRFTEEPLP 172
ETX_MTX2 pfam03318
Clostridium epsilon toxin ETX/Bacillus mosquitocidal toxin MTX2; This family appears to be ...
57-257 1.51e-21

Clostridium epsilon toxin ETX/Bacillus mosquitocidal toxin MTX2; This family appears to be distantly related to pfam01117.


Pssm-ID: 427241 [Multi-domain]  Cd Length: 222  Bit Score: 90.54  E-value: 1.51e-21
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  57 ASVQVLTNNTSLTQ-SQTLKFSEKLIESTTGSTTEGYKIGSGITSTSKFSYnvkifaaniGFDQTFTVTTTGEYNHSST- 134
Cdd:pfam03318  31 TGSNTLTNNTDSTQtLQTQSFSKKVTTTTSTTTTHGFKIGAKASGKFGIPF---------VAEGGITLSVSGEYNFSSTt 101
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490 135 ETTTKTTEKLWEVTQPVTVPPYTQIVATLIILGADLQIPMRLNATLIGNgtefgaenlycAAYFYNPNYMVQPYYAGNMA 214
Cdd:pfam03318 102 TNTTSVTTTYWVPSQKVTVPPHTTVRVTLVLYKTTYSVPVDLYTTLSGT-----------FSIEGTRSGYVEPASYPLTA 170
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|....*
gi 1873252490 215 DraWPNRPASF--IQGVYSLVLQGASTTSHGPGLYAAVLFEQTPL 257
Cdd:pfam03318 171 S--WPLIDIIFllINSDNSVNFNGSGYFELVYGLNFTIRVTETPL 213
PFM_LIN24-like cd20237
pore-forming module of Caenorhabditis elegans LIN-24 and similar aerolysin-type beta-barrel ...
60-165 1.27e-12

pore-forming module of Caenorhabditis elegans LIN-24 and similar aerolysin-type beta-barrel pore-forming proteins; The process of cytotoxic cell death occurs in Caenorhabditis elegans containing mutations in either of lin-24 and lin-33. The cytotoxicity caused by mutation of either gene requires the function of the other. Genes required for the engulfment of apoptotic corpses function in the cytotoxic cell deaths induced by mutations in lin-24 and lin-33. It has been proposed that Caenorhabditis elegans LIN-24 may function to interact with bacterial toxins having similarity with it, and inactivate these, thereby allowing C. elegans to consume or survive exposure to bacteria that produce such toxins. Members of this group belong to the aerolysin family of beta-pore-forming proteins (beta-PFPs). PFPs are generally secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores harmful to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel, are found in all kingdoms of life and many are bacterial toxins. In addition to having a role in microbial infection, they have potential as biotechnological sensors and delivery systems. They share a similar monomeric architecture, with a variable membrane-binding domain and a structurally conserved pore-forming region. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


Pssm-ID: 380807  Cd Length: 120  Bit Score: 63.37  E-value: 1.27e-12
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  60 QVLTNNTSLTQSQTLKFSEKLIESTTGSTTEGYKIGSgitstsKFSYNVK----IFAANIGFDQTFTVTTTGEYNHSSTE 135
Cdd:cd20237     8 TTFTNNTSTEQEYTFKTERTTTSSCTWSVTEGFTIGG------EVSLKLGpppdIAEANAGFSRELSLSKTQEETFEEEL 81
                          90       100       110
                  ....*....|....*....|....*....|
gi 1873252490 136 TttktteklWEVTQPVTVPPYTQIVATLII 165
Cdd:cd20237    82 T--------WSVDSQVTVPPKTKVTAELVI 103
PFM_aerolysin-like cd20242
pore-forming module of aerolysin-type beta-barrel pore-forming proteins; uncharacterized ...
60-181 8.44e-08

pore-forming module of aerolysin-type beta-barrel pore-forming proteins; uncharacterized subgroup; Members of this group belong to the aerolysin family of beta-pore-forming proteins (beta-PFPs). PFPs are generally secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores harmful to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel, are found in all kingdoms of life and many are bacterial toxins. In addition to having a role in microbial infection, they have potential as biotechnological sensors and delivery systems. They share a similar monomeric architecture, with a variable membrane-binding domain and a structurally conserved pore-forming region. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


Pssm-ID: 380812 [Multi-domain]  Cd Length: 144  Bit Score: 50.50  E-value: 8.44e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  60 QVLTNNTSLTQSQTLKFSEKLIESTTGSTTEGYKIGsgiTSTSkFSYNVKIFAANigfdqtfTVTTTGEYNHSSTETTTK 139
Cdd:cd20242     7 QTVTNDTGQPQTPSISGSETVTETSTWEDEVGLKLG---VSTS-FSAGVPVVAEG-------KVEVSAEVHNNYTWNGSN 75
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|..
gi 1873252490 140 TTEKLWEVTQPVTVPPYTQIVATLIILGADLQIPMRLNATLI 181
Cdd:cd20242    76 TRSKTWSFSTPVNVPAHSAVRATATVTESTISVPYTLTWKSI 117
PFM_aerolysin-like cd20240
pore-forming module of aerolysin-type beta-barrel pore-forming proteins; uncharacterized ...
58-165 9.27e-07

pore-forming module of aerolysin-type beta-barrel pore-forming proteins; uncharacterized subgroup; Generally, pore-forming proteins (PFPs) are secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores detrimental to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel. Many of this family are bacterial toxins. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


Pssm-ID: 380810 [Multi-domain]  Cd Length: 145  Bit Score: 47.64  E-value: 9.27e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  58 SVQVLTNNTSLTQSQTLKFSEKLIESTTGSTTEGYKigsgITSTSKFSYNVKIFAA-----NIGFDQTFTVTTTGEYnhs 132
Cdd:cd20240     9 VTWTYTNNTSIEQTMTTNFSETATETSSFSETEGVS----TTVSTSLKVGIPFIAGgeittTTTTSQSWTYGKSETK--- 81
                          90       100       110
                  ....*....|....*....|....*....|....*..
gi 1873252490 133 stetttktteklwEVTQ----PVTVPPYTQIVATLII 165
Cdd:cd20240    82 -------------TDTIsytfPIVVPPNTTVTATAVV 105
PFM_LSL-like cd20215
pore-forming module of Laetiporus sulphureus LSL lectin and similar aerolysin-type beta-barrel ...
60-173 5.42e-05

pore-forming module of Laetiporus sulphureus LSL lectin and similar aerolysin-type beta-barrel pore-forming proteins; LSL is a lectin, produced by the parasitic mushroom Laetiporus sulphureus, which exhibits hemolytic and hemagglutinating activities. Members of this family belong to the aerolysin family of beta-pore-forming proteins (beta-PFPs). PFPs are generally secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores harmful to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel, are found in all kingdoms of life and many are bacterial toxins. In addition to having a role in microbial infection, they have potential as biotechnological sensors and delivery systems. They share a similar monomeric architecture, with a variable membrane-binding domain and a structurally conserved pore-forming region. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


Pssm-ID: 380785 [Multi-domain]  Cd Length: 164  Bit Score: 42.70  E-value: 5.42e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  60 QVLTNNTSLTQSQTLKFSEklieSTTGSTTEGYKIGSGITSTSKFSYNVKIFAanigfDQTFTVTTTGeyNHSSTETTTK 139
Cdd:cd20215    28 QTLRNDTDVEQTMSFTLTE----TETHTSTFEYTAGFTITVGTSFKAGIPGVA-----EGKIKVDTTV--SNEWKWGEST 96
                          90       100       110
                  ....*....|....*....|....*....|....
gi 1873252490 140 TTEKLWEVTQPVTVPPYTQIVATLIILGADLQIP 173
Cdd:cd20215    97 TFTKTYTATFPVKAPPGSTVRAVATVTKSNLEVP 130
PFM_aerolysin-like cd20239
pore-forming module of aerolysin-type beta-barrel pore-forming proteins; uncharacterized ...
61-173 1.83e-04

pore-forming module of aerolysin-type beta-barrel pore-forming proteins; uncharacterized subgroup; Generally, pore-forming proteins (PFPs) are secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores detrimental to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel. Many of this family are bacterial toxins. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


Pssm-ID: 380809 [Multi-domain]  Cd Length: 145  Bit Score: 40.91  E-value: 1.83e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  61 VLTNNTSLTQSQTLKFSEKLIESTTGSTTEGYKIGSGITstskfsynvkiFAANIGF--DQTFTVTTTGEYNHSSTETTT 138
Cdd:cd20239     8 VVRNDSDSPASQTLTYSYSKSEEGTWNNTAGIELGVKVT-----------FKAGVPFvaSGELEVSVSASYSHTWGGSTT 76
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1873252490 139 KTTEKLWEVTqpVTVPPYTQIVATLIILGADLQIP 173
Cdd:cd20239    77 VTKTVSSSTT--VVVPPRKKGVASVLIRKAEIDVP 109
PFM_epsilon-toxin-like cd20223
pore-forming module of Clostridium perfringens epsilon-toxin and similar aerolysin-type ...
61-165 1.84e-04

pore-forming module of Clostridium perfringens epsilon-toxin and similar aerolysin-type beta-barrel pore-forming proteins; Clostridium perfringens epsilon-toxin is responsible for fatal enterotoxemia in ungulates. It forms a heptamer in the lipid rafts of Madin-Darby Canine Kidney (MDCK) cells, leading to cell death; its oligomer formation is induced by activation of neutral sphingomyelinase. This group also includes an insecticidal crystal protein Cry14-4 (encoded on plasmid pBMBt1 of Bacillus thuringiensis serovar darmstadiensis). Also included is pXO2-60 (a protein from the pathogenic pXO2 plasmid of Bacillus anthracis) which harbors a unique ubiquitin-like fold domain at the C-terminus of the aerolysin-like domain, and is involved in virulence. They belong to the aerolysin family of beta-pore-forming proteins (beta-PFPs). PFPs are generally secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores harmful to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel, are found in all kingdoms of life and many are bacterial toxins. In addition to having a role in microbial infection, they have potential as biotechnological sensors and delivery systems. They share a similar monomeric architecture, with a variable membrane-binding domain and a structurally conserved pore-forming region. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


Pssm-ID: 380793 [Multi-domain]  Cd Length: 144  Bit Score: 41.06  E-value: 1.84e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  61 VLTNNTSLTQS-QTLKFSEKLIESTTGSTTEGYKIGSGITSTskfsynvkifaANIGFDQTFTVTTTGEYNHSSTETTTK 139
Cdd:cd20223    21 TLTNDTDEEQTlKTPSFSKTVTDTVTTTTTNGFKLGVSTSAK-----------FKIPFPGGGSTELSAEYNFSTTNTNTT 89
                          90       100
                  ....*....|....*....|....*..
gi 1873252490 140 TTEKLWEV-TQPVTVPPYTQIVATLII 165
Cdd:cd20223    90 SETKTYTApSQTIKVPPGKTYKVTVYL 116
PFM_HFR-2-like cd20216
pore-forming module of wheat HFR-2 toxin, FEM32, and similar aerolysin-type beta-barrel ...
63-164 5.18e-03

pore-forming module of wheat HFR-2 toxin, FEM32, and similar aerolysin-type beta-barrel pore-forming proteins; HFR-2 is a wheat cytolytic toxin which may normally function in defense against certain insects or pathogens. The Hfr-2 gene is upregulated in virulent Hessian fly larval feedingdouble dagger. The HFR-2 protein may insert in plant cell membranes at the feeding sites and by forming pores provide water, ions and other small nutritive molecules to the developing larvae. This group also contains FEM32, a flower-specific lectin-like protein from the dioecious plant Rumex acetosa, which alters flower development and induces male sterility in transgenic tobacco. It has been suggested that the FEM32 gene activates some form of programmed cell death (PCD), a process that could be mediated by the action of its lectin domains for binding to specific glycoproteins on the cell membrane and facilitated by the formation of pore structures in the membranes and the subsequent leakage of the cytosolic content through its pore-forming aerolysin domain. Most proteins belonging to this group have N-terminal agglutatin (also known as amaranthin) lectin domains; most have two agglutatin domains, in combination with one aerolysin domain. Members of this group belong to the aerolysin family of beta-pore-forming proteins (beta-PFPs). PFPs are generally secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores harmful to cells. Beta-PFPs form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel, are found in all kingdoms of life and many are bacterial toxins. In addition to having a role in microbial infection, they have potential as biotechnological sensors and delivery systems. They share a similar monomeric architecture, with a variable membrane-binding domain and a structurally conserved pore-forming region. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin).


Pssm-ID: 380786 [Multi-domain]  Cd Length: 152  Bit Score: 36.80  E-value: 5.18e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1873252490  63 TNNTSLTQSQTLKFSEKLIESTTGSTTEGYKIGSGITSTSKFsynVKIFAANIGFDQTFTVT-TTGEYNHSSTETttktt 141
Cdd:cd20216    15 TNNTSEPQTVTLKLSYTDTKTSTWNSSVSLKLGVKTTISAGV---PFIVDGKIEISAEFSGSyEWGETKTETTEV----- 86
                          90       100
                  ....*....|....*....|...
gi 1873252490 142 eklwEVTQPVTVPPYTQIVATLI 164
Cdd:cd20216    87 ----ETTYTVTVPPMTKVTVTLI 105
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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