1USK | pdb_00001usk

L-leucine-binding protein with leucine bound

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d1uskd_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like I	Periplasmic binding protein-like I	L-arabinose binding protein-like	Leucine-binding protein	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1uskc_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like I	Periplasmic binding protein-like I	L-arabinose binding protein-like	Leucine-binding protein	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1uskb_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like I	Periplasmic binding protein-like I	L-arabinose binding protein-like	Leucine-binding protein	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d1uska_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like I	Periplasmic binding protein-like I	L-arabinose binding protein-like	Leucine-binding protein	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Type 1 solute binding protein-like	8041997	3000125	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Type 1 solute binding protein-like	8041997	3000125	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Type 1 solute binding protein-like	8041997	3000125	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Type 1 solute binding protein-like	8041997	3000125	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)
D	Ribonuc_L-PSP	e1uskD2	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F: Ribonuc_L-PSP	ECOD (v294.1)
C	Ribonuc_L-PSP	e1uskC2	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F: Ribonuc_L-PSP	ECOD (v294.1)
B	Ribonuc_L-PSP	e1uskB2	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F: Ribonuc_L-PSP	ECOD (v294.1)
A	Ribonuc_L-PSP	e1uskA2	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F: Ribonuc_L-PSP	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
C	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
B	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
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, B, C, D	PF13458	Periplasmic binding protein (Peripla_BP_6)	Periplasmic binding protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	LEUCINE-SPECIFIC BINDING PROTEIN	cation binding organic acid binding binding ion binding anion binding L-leucine binding amino acid binding carboxylic acid binding small molecule binding	nitrogen compound transport organic anion transport carboxylic acid transport transport valine transport neutral amino acid transport establishment of localization amino acid transport organic acid transport localization branched-chain amino acid transport isoleucine transport phenylalanine transport L-amino acid transport nitrogen compound transport organic anion transport carboxylic acid transport transport valine transport neutral amino acid transport establishment of localization amino acid transport organic acid transport localization branched-chain amino acid transport isoleucine transport phenylalanine transport L-amino acid transport L-leucine transport organic cation transport	ATPase dependent transmembrane transport complex ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex transporter complex ATP-binding cassette (ABC) transporter complex cell periphery cellular anatomical structure transmembrane transporter complex extracellular region outer membrane-bounded periplasmic space ATPase dependent transmembrane transport complex ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex transporter complex ATP-binding cassette (ABC) transporter complex cell periphery cellular anatomical structure transmembrane transporter complex 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	IPR028081	Leucine-binding protein domain	Domain
A, B, C, D	IPR028082	Periplasmic binding protein-like I	Homologous Superfamily
A, B, C, D	IPR000709	Leu/Ile/Val-binding protein	Family

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.