6SUE

Structure of Photorhabdus luminescens Tc holotoxin pore, Mutation TccC3-D651A


Protein Family Annotation Pfam Database Homepage

ChainsAccessionIdentifierDescriptionCommentsSource
A, B, C, D, EPF03538Salmonella virulence plasmid 28.1kDa A protein (VRP1)Salmonella virulence plasmid 28.1kDa A protein- Family
A, B, C, D, EPF18276Tc toxin complex TcA C-terminal TcB-binding domain (TcA_TcB_BD)Tc toxin complex TcA C-terminal TcB-binding domainThis domain is found in the C-terminal region of the Tc toxin TcA, present in Photorhabdus luminescens. Tc Toxin complexes bind to the cell surface, are endocytosed and perforate the host endosomal membrane by forming channels that translocate toxic ...This domain is found in the C-terminal region of the Tc toxin TcA, present in Photorhabdus luminescens. Tc Toxin complexes bind to the cell surface, are endocytosed and perforate the host endosomal membrane by forming channels that translocate toxic enzymes into the host. This domain is responsible for binding to toxin TcB. Binding of TcA to TcB/TcC opens the beta-propeller gate [1].
Domain
A, B, C, D, EPF18413Neuraminidase-like domain (Neuraminidase)Neuraminidase-like domainThis is a neuraminidase-like domain, which is structurally homologous to neuraminidases. It can be found in TcA subunit in tripartite Tc toxin complexes of bacterial pathogens. Functional analysis suggest that the neuraminidase-like domain acts as an ...This is a neuraminidase-like domain, which is structurally homologous to neuraminidases. It can be found in TcA subunit in tripartite Tc toxin complexes of bacterial pathogens. Functional analysis suggest that the neuraminidase-like domain acts as an electrostatic lock that opens at high or low pH values [1].
Domain
A, B, C, D, EPF18518TcA receptor binding domain (TcA_RBD)TcA receptor binding domainTc toxin complexes are virulence factors of many bacteria such as the plague pathogen Yersinia pestis. Tc toxins are composed of TcA, TcB and TcC subunits. TcA forms a large bell-shaped pentameric structure and enters the membrane like a syringe, for ...Tc toxin complexes are virulence factors of many bacteria such as the plague pathogen Yersinia pestis. Tc toxins are composed of TcA, TcB and TcC subunits. TcA forms a large bell-shaped pentameric structure and enters the membrane like a syringe, forming a translocation channel through which the cytotoxic domain is probably transported into the cytoplasm. TcA has four receptor-binding domains. This domain is one of 4 receptor binding domains found in TcA. All four domains have an immunoglobulin (Ig)-like beta-sandwich fold of two sheets with antiparallel beta-strands. The domains are structurally reminiscent of the receptor-binding domains of the diphtheria and anthrax toxins [1].
Domain
FPF18807Tripartite Tc toxins repeat (TTc_toxin_rep)Tripartite Tc toxins repeat- Family
FPF12256Insecticide toxin TcdB middle/N-terminal region (TcdB_toxin_midN)Insecticide toxin TcdB middle/N-terminal region- Family
FPF12255Insecticide toxin TcdB middle/C-terminal region (TcdB_toxin_midC)Insecticide toxin TcdB middle/C-terminal region- Family
FPF03534Salmonella virulence plasmid 65kDa B protein (SpvB)Salmonella virulence plasmid 65kDa B protein- Family

Gene Product Annotation Gene Product Annotation

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B, C, D, ETcdA1
FTcdB2,TccC3