Annotations: 2YPN

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2ypna1	Alpha and beta proteins (a/b)	Periplasmic binding protein-like II	Periplasmic binding protein-like II	Phosphate binding protein-like	Porphobilinogen deaminase (hydroxymethylbilane synthase), N-terminal domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
A	d2ypna2	Alpha and beta proteins (a+b)	dsRBD-like	Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain	Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain	Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain	(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)
A	SCOP2B Superfamily	Porphobilinogen deaminase (hydroxymethylbilane synthase), C-terminal domain	8035105	3001007	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Type 2 solute binding protein-like	8033314	3000083	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)
A	Porphobil_deamC	e2ypnA1	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: Porphobil_deamC	ECOD (1.6)
A	Porphobil_deam_N	e2ypnA2	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: Porphobil_deam_N	ECOD (1.6)
A	Porphobil_deam_C	e2ypnA3	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: Porphobil_deam_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.190.10	Alpha Beta	3-Layer(aba) Sandwich	D-Maltodextrin-Binding Protein	domain 2	CATH (4.3.0)
A	3.30.160.40	Alpha Beta	2-Layer Sandwich	Double Stranded RNA Binding Domain	Porphobilinogen deaminase, C-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03900	Porphobilinogen deaminase, C-terminal domain (Porphobil_deamC)	Porphobilinogen deaminase, C-terminal domain	-	Domain
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	PROTEIN (HYDROXYMETHYLBILANE SYNTHASE)	hydroxymethylbilane synthase activity transferase activity transferase activity, transferring alkyl or aryl (other than methyl) groups catalytic activity	pigment metabolic process heme metabolic process porphyrin-containing compound biosynthetic process tetrapyrrole metabolic process heme biosynthetic process pigment biosynthetic process tetrapyrrole biosynthetic process biosynthetic process metabolic process cellular process porphyrin-containing compound metabolic process protoporphyrinogen IX metabolic process protoporphyrinogen IX biosynthetic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

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