Annotations: 2ZX2

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Sea urchin egg lectin (SUEL)-like	8049898	4006685	SCOP2 (2022-06-29)
A	SCOP2 Family	Sea urchin egg lectin (SUEL)-like	8053000	4006685	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Sea urchin egg lectin (SUEL)-like	8053001	3002155	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Sea urchin egg lectin (SUEL)-like	8053002	3002155	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Sea urchin egg lectin (SUEL)-like	8053001	3002155	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Sea urchin egg lectin (SUEL)-like	8053002	3002155	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	Gal_Lectin	e2zx2A1	A: beta sandwiches	X: jelly-roll	H: Latrophilin 1 gal_lectin domain (From Topology)	T: Latrophilin 1 gal_lectin domain	F: Gal_Lectin	ECOD (1.6)
B	Gal_Lectin	e2zx2B1	A: beta sandwiches	X: jelly-roll	H: Latrophilin 1 gal_lectin domain (From Topology)	T: Latrophilin 1 gal_lectin domain	F: Gal_Lectin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.740	Mainly Beta	Sandwich	Jelly Rolls	Rhamnose-binding lectin domain (RBL)	CATH (4.3.0)
B	2.60.120.740	Mainly Beta	Sandwich	Jelly Rolls	Rhamnose-binding lectin domain (RBL)	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02140	D-galactoside/L-rhamnose binding SUEL lectin domain (SUEL_Lectin)	D-galactoside/L-rhamnose binding SUEL lectin domain	The D-galactoside binding lectin purified from sea urchin (Anthocidaris crassispina) eggs exists as a disulphide-linked homodimer of two subunits; the dimeric form is essential for hemagglutination activity [1]. The sea urchin egg lectin (SUEL) forms ...	The D-galactoside binding lectin purified from sea urchin (Anthocidaris crassispina) eggs exists as a disulphide-linked homodimer of two subunits; the dimeric form is essential for hemagglutination activity [1]. The sea urchin egg lectin (SUEL) forms a new class of lectins that binds D-galactoside and L-rhamnose, with preference for L-rhamnose [1,2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	CSL3	rhamnose binding binding monosaccharide binding carbohydrate binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity galactose binding oligosaccharide binding melibiose binding disaccharide binding	-	membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle cortical granule membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle cortical granule protein-containing complex nucleocytoplasmic transport complex NLS-dependent protein nuclear import complex nucleus germ cell nucleus female germ cell nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR043159	D-galactoside/L-rhamnose binding SUEL lectin domain superfamily	Homologous Superfamily
A, B	IPR000922	D-galactoside/L-rhamnose binding SUEL lectin domain	Domain

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.