Annotations: 4XR4

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	DUF433	e4xr4B1	A: beta barrels	X: HTH	H: HTH	T: Three-helical HTH	F: DUF433	ECOD (v294.2)
A	DUF433	e4xr4A1	A: beta barrels	X: HTH	H: HTH	T: Three-helical HTH	F: DUF433	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
B	3.30.360.30	Alpha Beta	2-Layer Sandwich	Dihydrodipicolinate Reductase	domain 2	CATH (4.3.0)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	3.30.360.30	Alpha Beta	2-Layer Sandwich	Dihydrodipicolinate Reductase	domain 2	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Homospermidine synthase	homospermidine synthase (spermidine-specific) activity transferase activity transferase activity, transferring alkyl or aryl (other than methyl) groups catalytic activity homospermidine synthase activity	-	-

Chains	Accession	Name	Type
A, B	IPR005097	Saccharopine dehydrogenase, NADP binding domain	Domain
A, B	IPR023181	Homospermidine synthase-like, C-terminal	Homologous Superfamily
A, B	IPR032095	Saccharopine dehydrogenase-like, C-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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

4XR4 | pdb_00004xr4