1OTH

CRYSTAL STRUCTURE OF HUMAN ORNITHINE TRANSCARBAMOYLASE COMPLEXED WITH N-PHOSPHONACETYL-L-ORNITHINE

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
Pharos: Disease Associations
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1otha1	Alpha and beta proteins (a/b)	ATC-like	Aspartate/ornithine carbamoyltransferase	Aspartate/ornithine carbamoyltransferase	Ornithine transcarbamoylase	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Aspartate/ornithine carbamoyltransferase	8020579	4000794	SCOP2 (2022-06-29)
A	SCOP2 Family	Aspartate/ornithine carbamoyltransferase	8020582	4000794	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Aspartate/ornithine carbamoyltransferase	8032959	3001396	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Aspartate/ornithine carbamoyltransferase	8032962	3001396	SCOP2 (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	OTCace	e1othA2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Aspartate/ornithine carbamoyltransferase	F: OTCace	ECOD (1.6)
A	OTCace_N	e1othA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: Aspartate/ornithine carbamoyltransferase	F: OTCace_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1370	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Aspartate/ornithine carbamoyltransferase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02729	Aspartate/ornithine carbamoyltransferase, carbamoyl-P binding domain (OTCace_N)	Aspartate/ornithine carbamoyltransferase, carbamoyl-P binding domain	-	Domain
A	PF00185	Aspartate/ornithine carbamoyltransferase, Asp/Orn binding domain (OTCace)	Aspartate/ornithine carbamoyltransferase, Asp/Orn binding domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (ORNITHINE TRANSCARBAMOYLASE)	carboxyl- or carbamoyltransferase activity ornithine carbamoyltransferase activity transferase activity, transferring one-carbon groups transferase activity catalytic activity binding amino acid binding phospholipid binding lipid binding ion binding anion binding phosphate ion binding small molecule binding identical protein binding carboxyl- or carbamoyltransferase activity ornithine carbamoyltransferase activity transferase activity, transferring one-carbon groups transferase activity catalytic activity binding amino acid binding phospholipid binding lipid binding ion binding anion binding phosphate ion binding small molecule binding identical protein binding protein binding	developmental process multicellular organism development multicellular organismal process hepaticobiliary system development gland development animal organ development anatomical structure development liver development system development response to stimulus response to chemical response to xenobiotic stimulus digestive system development tube development developmental process multicellular organism development multicellular organismal process hepaticobiliary system development gland development animal organ development anatomical structure development liver development system development response to stimulus response to chemical response to xenobiotic stimulus digestive system development tube development midgut development digestive tract development ornithine metabolic process oxoacid metabolic process small molecule biosynthetic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process carboxylic acid biosynthetic process arginine biosynthetic process via ornithine arginine metabolic process non-proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process metabolic process cellular process small molecule metabolic process alpha-amino acid biosynthetic process chemical homeostasis homeostatic process monoatomic ion homeostasis monoatomic anion homeostasis inorganic ion homeostasis ammonium homeostasis response to nutrient levels response to nutrient response to oxygen-containing compound response to nitrogen compound response to biotin response to vitamin response to organic cyclic compound response to metal ion response to zinc ion response to hormone response to endogenous stimulus response to peptide hormone response to insulin citrulline biosynthetic process citrulline metabolic process non-proteinogenic amino acid biosynthetic process catabolic process non-proteinogenic amino acid catabolic process organic acid catabolic process ornithine catabolic process cellular catabolic process alpha-amino acid catabolic process carboxylic acid catabolic process small molecule catabolic process amino acid catabolic process nitrogen cycle metabolic process urea cycle amide biosynthetic process amide metabolic process urea metabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane membrane-enclosed lumen mitochondrial matrix intracellular organelle lumen organelle lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR006132	Aspartate/ornithine carbamoyltransferase, carbamoyl-P binding	Domain
A	IPR002292	Ornithine/putrescine carbamoyltransferase	Family
A	IPR006131	Aspartate/ornithine carbamoyltransferase, Asp/Orn-binding domain	Domain
A	IPR036901	Aspartate/ornithine carbamoyltransferase superfamily	Homologous Superfamily
A	IPR006130	Aspartate/ornithine carbamoyltransferase	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P00480	ornithine carbamoyltransferase deficiency brain disease Hyperammonemia urea cycle disorder large cell medulloblastoma malignant glioma ovarian cancer inborn errors of metabolism intellectual disability malignant colon neoplasm

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	ornithine carbamoyltransferase M-CSA #12	Ornithine transcarbamoylase (OTCase) catalyses the formation of citrulline from carbamoyl phosphate (CP) and L-ornithine (ORN) in the urea cycle. Deleterious mutations in the human OTCase gene are associated with clinical hyperammonemia, neurological symptoms or even death. Approximately 140 mutations that result in OTCase-linked disorders have been identified, and several mutant enzymes have been purified and characterized biochemically.	Defined by 6 residues: ARG:A-108 [auth A-141]HIS:A-135 [auth A-168]GLN:A-138 [auth A-171]ASP:A-230 [auth A-263]CYS:A-270 [auth A-303]ARG:A-297 [auth A-330] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 2.1.3.3 (UniProt) Search M-CSA Motif + EC 2.1.3.3

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.