Annotations: 6K2L

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	FAD_binding_9	e6k2lA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: FAD_binding_9	ECOD (1.6)
A	SIP	e6k2lA2	A: a/b three-layered sandwiches	X: Ferredoxin reductase-like, C-terminal NADP-linked domain (From Topology)	H: Ferredoxin reductase-like, C-terminal NADP-linked domain (From Topology)	T: Ferredoxin reductase-like, C-terminal NADP-linked domain	F: SIP	ECOD (1.6)
B	FAD_binding_9	e6k2lB2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: FAD_binding_9	ECOD (1.6)
B	SIP	e6k2lB3	A: a/b three-layered sandwiches	X: Ferredoxin reductase-like, C-terminal NADP-linked domain (From Topology)	H: Ferredoxin reductase-like, C-terminal NADP-linked domain (From Topology)	T: Ferredoxin reductase-like, C-terminal NADP-linked domain	F: SIP	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF08021	Siderophore-interacting FAD-binding domain (FAD_binding_9)	Siderophore-interacting FAD-binding domain	-	Domain
A, B	PF04954	Siderophore-interacting protein (SIP)	Siderophore-interacting protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Siderophore-interacting protein	FAD binding flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding organic cyclic compound binding anion binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity, acting on metal ions oxidoreductase activity ferric-chelate reductase (NADPH) activity oxidoreductase activity, acting on metal ions, NAD or NADP as acceptor FAD binding flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding organic cyclic compound binding anion binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity, acting on metal ions oxidoreductase activity ferric-chelate reductase (NADPH) activity oxidoreductase activity, acting on metal ions, NAD or NADP as acceptor ferric-chelate reductase activity catalytic activity	cellular response to stimulus response to nutrient levels inorganic ion homeostasis response to stimulus homeostatic process cellular response to starvation cellular response to iron ion starvation cellular response to nutrient levels intracellular iron ion homeostasis cellular homeostasis chemical homeostasis cellular response to stress intracellular monoatomic cation homeostasis response to stress monoatomic ion homeostasis cellular response to stimulus response to nutrient levels inorganic ion homeostasis response to stimulus homeostatic process cellular response to starvation cellular response to iron ion starvation cellular response to nutrient levels intracellular iron ion homeostasis cellular homeostasis chemical homeostasis cellular response to stress intracellular monoatomic cation homeostasis response to stress monoatomic ion homeostasis intracellular chemical homeostasis cellular process response to starvation monoatomic cation homeostasis intracellular monoatomic ion homeostasis cellular localization iron import into cell transport iron ion transport establishment of localization metal ion transport localization establishment of localization in cell transition metal ion transport monoatomic ion transport monoatomic cation transport siderophore transport iron coordination entity transport	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR017938	Riboflavin synthase-like beta-barrel	Homologous Superfamily
A, B	IPR007037	Siderophore-interacting protein, C-terminal domain	Domain
A, B	IPR039374	Siderophore-interacting protein	Family
A, B	IPR013113	FAD-binding 9, siderophore-interacting	Domain
A, B	IPR017927	FAD-binding domain, ferredoxin reductase-type	Domain
A, B	IPR039261	Ferredoxin-NADP reductase (FNR), nucleotide-binding domain	Homologous Superfamily

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.