4CP9

Crystal structure OF lecA lectin complexed with a divalent galactoside at 1.65 angstrom

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
A	d4cp9a_	All beta proteins	Galactose-binding domain-like	Galactose-binding domain-like	PA-IL, galactose-binding lectin 1	PA-IL, galactose-binding lectin 1	(Pseudomonas aeruginosa PAO1 ) [TaxId: 208964 ],	SCOPe (2.08)
C	d4cp9c_	All beta proteins	Galactose-binding domain-like	Galactose-binding domain-like	PA-IL, galactose-binding lectin 1	PA-IL, galactose-binding lectin 1	(Pseudomonas aeruginosa PAO1 ) [TaxId: 208964 ],	SCOPe (2.08)
D	d4cp9d_	All beta proteins	Galactose-binding domain-like	Galactose-binding domain-like	PA-IL, galactose-binding lectin 1	PA-IL, galactose-binding lectin 1	(Pseudomonas aeruginosa PAO1 ) [TaxId: 208964 ],	SCOPe (2.08)
B	d4cp9b_	All beta proteins	Galactose-binding domain-like	Galactose-binding domain-like	PA-IL, galactose-binding lectin 1	PA-IL, galactose-binding lectin 1	(Pseudomonas aeruginosa PAO1 ) [TaxId: 208964 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	galactose-binding domain-like	8042929	3000087	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	galactose-binding domain-like	8042929	3000087	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	galactose-binding domain-like	8042929	3000087	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	galactose-binding domain-like	8042929	3000087	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PA-IL	e4cp9A1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Galactose-binding domain-like	F: PA-IL	ECOD (1.6)
C	PA-IL	e4cp9C1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Galactose-binding domain-like	F: PA-IL	ECOD (1.6)
D	PA-IL	e4cp9D1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Galactose-binding domain-like	F: PA-IL	ECOD (1.6)
B	PA-IL	e4cp9B1	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Galactose-binding domain-like	F: PA-IL	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.430	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding lectin	CATH (4.3.0)
C	2.60.120.430	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding lectin	CATH (4.3.0)
D	2.60.120.430	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding lectin	CATH (4.3.0)
B	2.60.120.430	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding lectin	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07828	PA-IL-like protein (PA-IL)	PA-IL-like protein	-	Family
B, C, D	PF07828	PA-IL-like protein (PA-IL)	PA-IL-like protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PA-I GALACTOPHILIC LECTIN	binding carbohydrate binding	heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules cell adhesion cell-cell adhesion cellular process cell-cell adhesion via plasma-membrane adhesion molecules	cell surface cellular anatomical entity periplasmic space intracellular anatomical structure cytoplasm
B, C, D	PA-I GALACTOPHILIC LECTIN	binding carbohydrate binding	heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules cell adhesion cell-cell adhesion cellular process cell-cell adhesion via plasma-membrane adhesion molecules	cell surface cellular anatomical entity periplasmic space intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012905	PA-IL-like	Family
A	IPR008979	Galactose-binding-like domain superfamily	Homologous Superfamily
B, C, D	IPR012905	PA-IL-like	Family
B, C, D	IPR008979	Galactose-binding-like domain superfamily	Homologous Superfamily

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	OCS	Parent Component: CYS RESID: AA0556 PSI-MOD : L-cysteic acid (L-cysteine sulfonic acid) MOD:00460
A	TRO	Parent Component: TRP RESID: AA0556 , AA0542 , AA0543 PSI-MOD : L-cysteic acid (L-cysteine sulfonic acid) MOD:00460 , 2'-hydroxy-L-tryptophan MOD:01816 , oxidation of tryptophan to 2'-oxo-L-tryptophan MOD:01817
B, C, D	OCS	Parent Component: CYS RESID: AA0556 , AA0542 , AA0543 , AA0556 PSI-MOD : L-cysteic acid (L-cysteine sulfonic acid) MOD:00460 , 2'-hydroxy-L-tryptophan MOD:01816 , oxidation of tryptophan to 2'-oxo-L-tryptophan MOD:01817 , L-cysteic acid (L-cysteine sulfonic acid) MOD:00460

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.