Annotations: 7AAJ

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth B]	PF03900	e7aajB2	A: a+b two layers	X: dsRBD-like	H: Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain (From Topology)	T: Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain	F: PF03900	ECOD (1.6)
A [auth B]	PF01379	e7aajB3	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: PF01379	ECOD (1.6)
B [auth A]	PF03900	e7aajA2	A: a+b two layers	X: dsRBD-like	H: Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain (From Topology)	T: Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain	F: PF03900	ECOD (1.6)
B [auth A]	PF01379	e7aajA1	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: PF01379	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth A]	PF03900	Porphobilinogen deaminase, C-terminal domain (Porphobil_deamC)	Porphobilinogen deaminase, C-terminal domain	-	Domain
A [auth B], B [auth A]	PF01379	Porphobilinogen deaminase, dipyromethane cofactor binding domain (Porphobil_deam)	Porphobilinogen deaminase, dipyromethane cofactor binding domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth A]	Porphobilinogen deaminase	hydroxymethylbilane synthase activity transferase activity transferase activity, transferring alkyl or aryl (other than methyl) groups catalytic activity	heme A biosynthetic process pigment metabolic process heme metabolic process porphyrin-containing compound biosynthetic process organonitrogen compound metabolic process tetrapyrrole metabolic process heme biosynthetic process organonitrogen compound biosynthetic process pigment biosynthetic process organic cyclic compound metabolic process organic substance metabolic process tetrapyrrole biosynthetic process biosynthetic process organic cyclic compound biosynthetic process heme a metabolic process heme A biosynthetic process pigment metabolic process heme metabolic process porphyrin-containing compound biosynthetic process organonitrogen compound metabolic process tetrapyrrole metabolic process heme biosynthetic process organonitrogen compound biosynthetic process pigment biosynthetic process organic cyclic compound metabolic process organic substance metabolic process tetrapyrrole biosynthetic process biosynthetic process organic cyclic compound biosynthetic process heme a metabolic process organic substance biosynthetic process metabolic process porphyrin-containing compound metabolic process heme O metabolic process heme O biosynthetic process protoporphyrinogen IX metabolic process protoporphyrinogen IX biosynthetic process heme B biosynthetic process heme B metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A]	IPR022418	Porphobilinogen deaminase, C-terminal	Domain
A [auth B], B [auth A]	IPR000860	Porphobilinogen deaminase	Family
A [auth B], B [auth A]	IPR022419	Porphobilinogen deaminase, dipyrromethane cofactor binding site	Binding Site
A [auth B], B [auth A]	IPR036803	Porphobilinogen deaminase, C-terminal domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR022417	Porphobilinogen deaminase, N-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth B], B [auth A]	Pharos: P08397	acute intermittent porphyria inherited porphyria Porphyria, Acute Intermittent, Nonerythroid Variant atypical teratoid rhabdoid tumor heart disease large cell medulloblastoma lung cancer oligodendroglioma psoriasis acute interstitial pneumonia hepatic porphyria inborn errors of metabolism leukodystrophy malignant ependymoma osteosarcoma acute intermittent porphyria inherited porphyria Porphyria, Acute Intermittent, Nonerythroid Variant atypical teratoid rhabdoid tumor heart disease large cell medulloblastoma lung cancer oligodendroglioma psoriasis acute interstitial pneumonia hepatic porphyria inborn errors of metabolism leukodystrophy malignant ependymoma osteosarcoma variegate porphyria astrocytic tumor glioblastoma hereditary coproporphyria lung adenocarcinoma malignant mesothelioma

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 R01GM133198.