Annotations: 2CEX

Structure of a sialic acid binding protein (SiaP) in the presence of the sialic acid acid analogue Neu5Ac2en

External Resource: Annotation

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d2cexd_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like II	Periplasmic binding protein-like II	Phosphate binding protein-like	Sialic acid-binding protein SiaP	(Haemophilus influenzae ) [TaxId: 727 ],	SCOPe (2.08)
C	d2cexc_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like II	Periplasmic binding protein-like II	Phosphate binding protein-like	Sialic acid-binding protein SiaP	(Haemophilus influenzae ) [TaxId: 727 ],	SCOPe (2.08)
B	d2cexb_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like II	Periplasmic binding protein-like II	Phosphate binding protein-like	Sialic acid-binding protein SiaP	(Haemophilus influenzae ) [TaxId: 727 ],	SCOPe (2.08)
A	d2cexa_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like II	Periplasmic binding protein-like II	Phosphate binding protein-like	Sialic acid-binding protein SiaP	(Haemophilus influenzae ) [TaxId: 727 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	EryCIII-like_C	e2cexD1	A: beta barrels	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: EryCIII-like_C	ECOD (v294.2)
C	EryCIII-like_C	e2cexC1	A: beta barrels	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: EryCIII-like_C	ECOD (v294.2)
B	EryCIII-like_C	e2cexB1	A: beta barrels	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: EryCIII-like_C	ECOD (v294.2)
A	EryCIII-like_C	e2cexA1	A: beta barrels	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: EryCIII-like_C	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.40.190.170	Alpha Beta	3-Layer(aba) Sandwich	D-Maltodextrin-Binding Protein	domain 2	CATH (4.3.0)
C	3.40.190.170	Alpha Beta	3-Layer(aba) Sandwich	D-Maltodextrin-Binding Protein	domain 2	CATH (4.3.0)
B	3.40.190.170	Alpha Beta	3-Layer(aba) Sandwich	D-Maltodextrin-Binding Protein	domain 2	CATH (4.3.0)
A	3.40.190.170	Alpha Beta	3-Layer(aba) Sandwich	D-Maltodextrin-Binding Protein	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF03480	Bacterial extracellular solute-binding protein, family 7 (DctP)	Bacterial extracellular solute-binding protein, family 7	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	PROTEIN HI0146	-	transmembrane transport localization transport cellular process establishment of localization	cellular anatomical structure extracellular region outer membrane-bounded periplasmic space cell envelope periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR018389	TRAP transporter solute receptor DctP	Family
A, B, C, D	IPR038404	TRAP transporter solute receptor DctP superfamily	Homologous Superfamily
A, B, C, D	IPR004682	TRAP transporter solute receptor, DctP family	Family

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.