7XII | pdb_00007xii

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	7tm_1	e7xiiB1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
C	7tm_1	e7xiiC1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
D	7tm_1	e7xiiD1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)
A	7tm_1	e7xiiA1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: 7tm_1	ECOD (v294.1)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Polyamine aminopropyltransferase	spermidine synthase activity transferase activity transferase activity, transferring alkyl or aryl (other than methyl) groups catalytic activity thermospermine synthase activity	polyamine metabolic process amine metabolic process biogenic amine biosynthetic process spermidine metabolic process biosynthetic process amine biosynthetic process polyamine biosynthetic process metabolic process cellular process spermidine biosynthetic process biogenic amine metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

Chains	Accession	Name	Type
A, B, C, D	IPR001045	Spermidine/spermine synthases	Family
A, B, C, D	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A, B, C, D	IPR030374	Polyamine biosynthesis domain	Domain
A, B, C, D	IPR037163	Spermidine synthase, tetramerisation domain superfamily	Homologous Superfamily
A, B, C, D	IPR030373	Polyamine biosynthesis domain, conserved site	Conserved Site
A, B, C, D	IPR035246	Spermidine synthase, tetramerisation domain	Domain