Annotations: 5XNH

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	UNK_F_TYPE	e5xnhA2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: UNK_F_TYPE	ECOD (1.6)
A	DUF43	e5xnhA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: DUF43	ECOD (1.6)
B [auth H]	UNK_F_TYPE	e5xnhH1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: UNK_F_TYPE	ECOD (1.6)
B [auth H]	DUF43	e5xnhH2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: DUF43	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
A	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)
B [auth H]	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
B [auth H]	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth H]	PF01861	Branched-chain polyamine synthase A C-terminal domain (BpsA_C)	Branched-chain polyamine synthase A C-terminal domain	This domain is found in the C terminus of N(4)-bis(aminopropyl)spermidine synthase (EC:2.5.1.128, also known as Branched-chain polyamine synthase A, BpsA) from hyperthermophiles [1] and in uncharacterised proteins from bacteria and archaea.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth H]	N(4)-bis(aminopropyl)spermidine synthase	transferase activity transferase activity, transferring alkyl or aryl (other than methyl) groups catalytic activity	amine metabolic process biogenic amine biosynthetic process organonitrogen compound metabolic process biosynthetic process amine biosynthetic process polyamine biosynthetic process organonitrogen compound biosynthetic process metabolic process polyamine metabolic process biogenic amine metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth H]	IPR051720	rRNA N6-Adenosine-Methyltransferase/Polyamine Synthase	Family
A, B [auth H]	IPR002723	N(4)-bis(aminopropyl)spermidine synthase, C-terminal	Domain
A, B [auth H]	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A, B [auth H]	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B [auth H]	IPR014435	N(4)-bis(aminopropyl)spermidine synthase	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 R01GM133198.