1IQB | pdb_00001iqb

Crystal Structure of Urtica dioica Agglutinin Isolectin I

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1iqbb1	Small proteins	Knottins (small inhibitors, toxins, lectins)	Plant lectins/antimicrobial peptides	Hevein-like agglutinin (lectin) domain	Isolectin VI	(Urtica dioica ) [TaxId: 3501 ],	SCOPe (2.08)
A	d1iqba1	Small proteins	Knottins (small inhibitors, toxins, lectins)	Plant lectins/antimicrobial peptides	Hevein-like agglutinin (lectin) domain	Isolectin VI	(Urtica dioica ) [TaxId: 3501 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Plant lectins/antimicrobial peptides	8036694	3000195	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Plant lectins/antimicrobial peptides	8036695	3000195	SCOP2B (2022-06-29)
A	SCOP2 Family	Hevein-like agglutinin (lectin) domain	8024315	4003041	SCOP2 (2022-06-29)
A	SCOP2 Family	Hevein-like agglutinin (lectin) domain	8024316	4003041	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Plant lectins/antimicrobial peptides	8036694	3000195	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Plant lectins/antimicrobial peptides	8036695	3000195	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Chitin_bind_1	e1iqbB1	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: Plant lectins/antimicrobial peptides	F: Chitin_bind_1	ECOD (1.6)
A	Chitin_bind_1	e1iqbA1	A: few secondary structure elements	X: omega toxin-like	H: omega toxin-related	T: Plant lectins/antimicrobial peptides	F: Chitin_bind_1	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00187	Chitin recognition protein (Chitin_bind_1)	Chitin recognition protein		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	AGGLUTININ ISOLECTIN I	binding carbohydrate binding chitinase activity hydrolase activity, acting on glycosyl bonds hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity endochitinase activity chitin binding carbohydrate derivative binding cation binding ion binding metal ion binding small molecule binding	defense response to fungus biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to stress response to external stimulus response to fungus response to external biotic stimulus response to biotic stimulus catabolic process cell wall organization or biogenesis metabolic process cellular process defense response to fungus biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response response to stress response to external stimulus response to fungus response to external biotic stimulus response to biotic stimulus catabolic process cell wall organization or biogenesis metabolic process cellular process macromolecule metabolic process macromolecule catabolic process cell wall macromolecule catabolic process cell wall macromolecule metabolic process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing carbohydrate derivative catabolic process carbohydrate derivative metabolic process chitin metabolic process aminoglycan catabolic process glucosamine-containing compound catabolic process amino sugar catabolic process aminoglycan metabolic process amino sugar metabolic process chitin catabolic process carbohydrate metabolic process polysaccharide metabolic process polysaccharide catabolic process carbohydrate catabolic process primary metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR018371	Chitin-binding, type 1, conserved site	Conserved Site
A, B	IPR036861	Endochitinase-like superfamily	Homologous Superfamily
A, B	IPR023346	Lysozyme-like domain superfamily	Homologous Superfamily
A, B	IPR001002	Chitin-binding, type 1	Domain
A, B	IPR016283	Glycoside hydrolase, family 19	Family
A, B	IPR000726	Glycoside hydrolase, family 19, catalytic	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, B	PCA	Parent Component: GLN RESID: AA0031 PSI-MOD : 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420

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.