Annotations: 8JHZ

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF15494	Scavenger receptor cysteine-rich domain (SRCR_2)	Scavenger receptor cysteine-rich domain	SRCR_2 is a scavenger receptor cysteine-rich domain family found largely on vertebrate sequences up-stream of the trypsin-like transmembrane serine protease, Spinesin.	Domain
A	PF12919	TcdA/TcdB catalytic glycosyltransferase domain (TcdA_TcdB)	TcdA/TcdB catalytic glycosyltransferase domain	This domain represents the N-terminal glycosyltransferase from a set of toxins found in some bacteria. This domain in TcdB glycosylates the host RhoA protein.	Domain
A	PF12918	TcdB toxin N-terminal helical domain (TcdB_N)	TcdB toxin N-terminal helical domain	This is a short helical bundle domain found associated with the catalytic domain of the TcdB toxin from C. difficile [1]. The function of this domain is unknown, but it may be involved in substrate recognition.	Domain
A	PF01473	Putative cell wall binding repeat (Choline_bind_1)	Putative cell wall binding repeat	-	Repeat
A	PF19127	Choline-binding repeat (Choline_bind_3)	Choline-binding repeat	-	Repeat
A	PF11713	Peptidase C80 family (Peptidase_C80)	Peptidase C80 family	This family belongs to cysteine peptidase family C80.	Domain
A	PF12920	TcdA/TcdB pore forming domain (TcdA_TcdB_pore)	TcdA/TcdB pore forming domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Transmembrane protease serine 2	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity	viral gene expression viral process viral translation primary metabolic process gene expression macromolecule biosynthetic process protein maturation protein autoprocessing biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process viral gene expression viral process viral translation primary metabolic process gene expression macromolecule biosynthetic process protein maturation protein autoprocessing biosynthetic process proteolysis protein processing metabolic process cellular process protein metabolic process macromolecule metabolic process regulation of biological process biological process involved in interspecies interaction between organisms positive regulation of viral life cycle positive regulation of viral process biological regulation positive regulation of biological process viral life cycle modulation by symbiont of entry into host biological process involved in interaction with host biological process involved in symbiotic interaction regulation of viral entry into host cell regulation of viral life cycle regulation of viral process symbiont entry into host cell symbiont entry into host positive regulation of viral entry into host cell positive regulation by symbiont of entry into host regulation of biological process involved in symbiotic interaction virion attachment to host cell receptor-mediated virion attachment to host cell adhesion of symbiont to host cell entry receptor-mediated virion attachment to host cell adhesion of symbiont to host	cellular anatomical structure extracellular region extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle cell periphery plasma membrane membrane intracellular anatomical structure cellular anatomical structure extracellular region extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle cell periphery plasma membrane membrane intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen nuclear lumen
A	Hemorrhagic toxin	glycosyltransferase activity transferase activity catalytic activity binding lipid binding toxin activity cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity cation binding ion binding metal ion binding small molecule binding	symbiont-mediated disruption of host focal adhesion symbiont-mediated disruption of host anatomical structure biological process involved in interspecies interaction between organisms disruption of anatomical structure in another organism symbiont-mediated disruption of host cellular anatomical structure cellular process disruption of cell in another organism symbiont-mediated killing of host cell killing of cells of another organism cell killing biological process involved in interaction with host biological process involved in symbiotic interaction proteolysis metabolic process symbiont-mediated disruption of host focal adhesion symbiont-mediated disruption of host anatomical structure biological process involved in interspecies interaction between organisms disruption of anatomical structure in another organism symbiont-mediated disruption of host cellular anatomical structure cellular process disruption of cell in another organism symbiont-mediated killing of host cell killing of cells of another organism cell killing biological process involved in interaction with host biological process involved in symbiotic interaction proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure membrane extracellular region host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane other organism part host cell cytoplasm part host intracellular organelle host cell endosome membrane host cell cytoplasm host cell part host cell endosome cellular anatomical structure membrane extracellular region host intracellular membrane-bounded organelle host cellular component host intracellular part host cell membrane other organism part host cell cytoplasm part host intracellular organelle host cell endosome membrane host cell cytoplasm host cell part host cell endosome host intracellular region host cell plasma membrane host cell cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
B	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
B	IPR001190	SRCR domain	Domain
B	IPR001314	Peptidase S1A, chymotrypsin family	Family
B	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
B	IPR036772	SRCR-like domain superfamily	Homologous Superfamily
B	IPR001254	Serine proteases, trypsin domain	Domain
B	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
B	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
B	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
B	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site
A	IPR038383	CGT/MARTX, cysteine protease (CPD) domain superfamily	Homologous Superfamily
A	IPR024772	TcdA/TcdB toxin, N-terminal helical domain	Domain
A	IPR020974	CGT/MARTX, cysteine protease (CPD) domain	Domain
A	IPR024769	TcdA/TcdB toxin, pore forming domain	Domain
A	IPR029044	Nucleotide-diphospho-sugar transferases	Homologous Superfamily
A	IPR024770	TcdA/TcdB toxin, catalytic glycosyltransferase domain	Domain
A	IPR018337	Cell wall/choline-binding repeat	Repeat

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	Pharos: O15393	prostate cancer ovarian cancer psoriasis adult acute respiratory distress syndrome cutaneous melanoma gastric carcinoma interstitial cystitis lung cancer melanoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm prostate carcinoma severe acute respiratory syndrome breast cancer cystic fibrosis prostate cancer ovarian cancer psoriasis adult acute respiratory distress syndrome cutaneous melanoma gastric carcinoma interstitial cystitis lung cancer melanoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm prostate carcinoma severe acute respiratory syndrome breast cancer cystic fibrosis Gastro-esophageal reflux disease with esophagitis large cell medulloblastoma lung carcinoma Middle East respiratory syndrome osteosarcoma pneumonia COVID-19 Down syndrome influenza lung adenocarcinoma malignant glioma nasopharyngeal carcinoma

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.