3NBM

The lactose-specific IIB component domain structure of the phosphoenolpyruvate:carbohydrate phosphotransferase system (PTS) from Streptococcus pneumoniae.

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PTS_IIB	e3nbmA1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Flavoproteins/Phosphotyrosine protein phosphatases-like	T: Phosphotyrosine protein phosphatases I-like	F: PTS_IIB	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02302	PTS system, Lactose/Cellobiose specific IIB subunit (PTS_IIB)	PTS system, Lactose/Cellobiose specific IIB subunit	The bacterial phosphoenolpyruvate: sugar phosphotransferase system (PTS) is a multi-protein system involved in the regulation of a variety of metabolic and transcriptional processes. The lactose/cellobiose-specific family are one of four structurally ...	The bacterial phosphoenolpyruvate: sugar phosphotransferase system (PTS) is a multi-protein system involved in the regulation of a variety of metabolic and transcriptional processes. The lactose/cellobiose-specific family are one of four structurally and functionally distinct group IIB PTS system cytoplasmic enzymes. The fold of IIB cellobiose shows similar structure to mammalian tyrosine phosphatases. This family also contains the fructose specific IIB subunit.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PTS system, lactose-specific IIBC components	kinase activity transferase activity catalytic activity transferase activity, transferring phosphorus-containing groups active transmembrane transporter activity protein-N(PI)-phosphohistidine-sugar phosphotransferase activity transporter activity carbohydrate transmembrane transporter activity transmembrane transporter activity phosphotransferase activity, alcohol group as acceptor	import into cell phosphoenolpyruvate-dependent sugar phosphotransferase system transport import across plasma membrane carbohydrate import across plasma membrane carbohydrate transport establishment of localization transmembrane transport localization cellular process carbohydrate transmembrane transport phosphorylation phosphate-containing compound metabolic process metabolic process import into cell phosphoenolpyruvate-dependent sugar phosphotransferase system transport import across plasma membrane carbohydrate import across plasma membrane carbohydrate transport establishment of localization transmembrane transport localization cellular process carbohydrate transmembrane transport phosphorylation phosphate-containing compound metabolic process metabolic process phosphorus metabolic process carbohydrate derivative transport	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003501	Phosphotransferase system, EIIB component, type 2/3	Domain
A	IPR036095	PTS system IIB component-like superfamily	Homologous Superfamily
A	IPR013012	Phosphotransferase system, EIIB component, type 3	Domain
A	IPR051088	Bacterial PTS System Sugar-Specific EIIC/EIIB	Family
A	IPR004501	Phosphotransferase system, EIIC component, type 3	Domain
A	IPR003352	Phosphotransferase system, EIIC	Domain
A	IPR041713	PTS system lactose-specific EIICB component, IIB 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.